HP Color LaserJet CP3525 Series Printer Service Manual Theory of operation Removal and replacement Solve problems Parts list www.hp.
HP Color LaserJet CP3525 Series Printers Service Manual
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Table of contents 1 Product basics Product comparison ............................................................................................................................. 2 Product features ................................................................................................................................... 3 Product view ......................................................................................................................................... 6 Front view ..............
Tray and bin capacity ......................................................................................................................... 48 Special paper or print media guidelines ............................................................................................. 49 Load trays ........................................................................................................................................... 50 Paper orientation for loading trays ......................................
HP policy on non-HP print cartridges ................................................................................. 81 HP fraud hotline and Web site ........................................................................................... 81 Replace supplies ............................................................................................................... 81 Supplies life .......................................................................................................
Low-voltage power supply failure .................................................................... 114 Fuser (fixing) control ........................................................................................................ 115 Fuser (fixing) temperature-control circuit ........................................................ 116 Fuser (fixing) over-temperature protection ...................................................... 116 Fuser (fixing)-failure detection ...................................
Jam detection ................................................................................................................................... 152 Optional paper feeder ....................................................................................................................... 154 Paper-feeder pickup and feed operation ......................................................................... 156 Paper-size detection and cassette-presence detection ..............................................
Right-rear cover ............................................................................................................... 198 Left cover ......................................................................................................................... 200 Control-panel assembly ................................................................................................... 203 Right-front cover .................................................................................................
Reinstall the cassette-pickup drive assembly ................................. 261 Cassette-pickup assembly ............................................................................................... 263 Remove the cassette-pickup assembly ........................................................... 263 Laser/scanner assembly (Y/M) ........................................................................................ 265 Remove the laser/scanner assembly (Y/M) ..........................................
LED diagnostics .............................................................................................. 319 Understand lights on the formatter ................................................. 319 Engine diagnostics .......................................................................................... 320 Diagnostics menu ........................................................................... 320 Diagnostics mode ...........................................................................
Print-quality troubleshooting tools .................................................................................... 358 Repetitive defects ruler ................................................................................... 358 Calibrate the product ....................................................................................... 359 Internal print-quality test pages ........................................................................................
Paper does not feed from Tray 2 or 3 .............................................................................. 426 Transparencies or glossy paper will not feed .................................................................. 427 Envelopes jam or will not feed in the product .................................................................. 427 Output is curled or wrinkled .............................................................................................
Registration assembly ..................................................................................................... 474 Secondary transfer assembly .......................................................................................... 476 Delivery assembly ............................................................................................................ 478 Fusing (fixing) assembly .................................................................................................
Index .................................................................................................................................................................
List of tables Table 2-1 Table 3-1 Table 5-1 Table 5-2 Table 5-3 Table 5-4 Table 5-5 Table 5-6 Table 5-7 Table 5-8 Table 5-9 Table 5-10 Table 5-11 Table 5-12 Table 5-13 Table 5-14 Table 5-15 Table 6-1 Table 7-1 Table 7-2 Table 7-3 Table 7-4 Table 7-5 Table 7-6 Table 7-7 Table 7-8 Table 7-9 Table 7-10 Table 7-11 Table 7-12 Table 7-13 Table 7-14 Table 7-15 Table 7-16 ENWW Embedded Jetdirect and EIO Jetdirect menus .........................................................................
Table 7-17 Table 7-18 Table 7-19 Table 7-20 Table 7-21 Table 7-22 Table 7-23 Table 7-24 Table 7-25 Table 7-26 Table 7-27 Table 7-28 Table 7-29 Table 8-1 Table 8-2 Table 8-3 Table 8-4 Table 8-5 Table 8-6 Table 8-7 Table 8-8 Table 8-9 Table 8-10 Table 8-11 Table 8-12 Table 8-13 Table 8-14 Table 8-15 Table 8-16 Table 8-17 Table 8-18 Table 8-19 Table 8-20 Table 8-21 Table B-1 Table B-2 Table B-3 Table B-4 Table B-5 Table B-6 xvi Causes and solutions for fuser delivery stationary jams .........................
List of figures Figure 4-1 Figure 4-2 Figure 5-1 Figure 5-2 Figure 5-3 Figure 5-4 Figure 5-5 Figure 5-6 Figure 5-7 Figure 5-8 Figure 5-9 Figure 5-10 Figure 5-11 Figure 5-12 Figure 5-13 Figure 5-14 Figure 5-15 Figure 5-16 Figure 5-17 Figure 5-18 Figure 5-19 Figure 5-20 Figure 5-21 Figure 5-22 Figure 5-23 Figure 5-24 Figure 5-25 Figure 5-26 Figure 5-27 Figure 5-28 Figure 5-29 Figure 5-30 Figure 5-31 Figure 5-32 ENWW Slot for the security cable ...............................................................
Figure 5-33 Figure 5-34 Figure 5-35 Figure 5-36 Figure 5-37 Figure 5-38 Figure 5-39 Figure 5-40 Figure 5-41 Figure 5-42 Figure 5-43 Figure 5-44 Figure 5-45 Figure 5-46 Figure 5-47 Figure 5-48 Figure 5-49 Figure 5-50 Figure 6-1 Figure 6-2 Figure 6-3 Figure 6-4 Figure 6-5 Figure 6-6 Figure 6-7 Figure 6-8 Figure 6-9 Figure 6-10 Figure 6-11 Figure 6-12 Figure 6-13 Figure 6-14 Figure 6-15 Figure 6-16 Figure 6-17 Figure 6-18 Figure 6-19 Figure 6-20 Figure 6-21 Figure 6-22 Figure 6-23 Figure 6-24 Figure 6-25 Figur
Figure 6-27 Remove the transfer roller (1 of 3) .............................................................................................. 184 Figure 6-28 Remove the transfer roller (2 of 3) .............................................................................................. 184 Figure 6-29 Remove the transfer roller (3 of 3) .............................................................................................. 185 Figure 6-30 Reinstall the transfer roller .............................
Figure 6-71 Figure 6-72 Figure 6-73 Figure 6-74 Figure 6-75 Figure 6-76 Figure 6-77 Figure 6-78 Figure 6-79 Figure 6-80 Figure 6-81 Figure 6-82 Figure 6-83 Figure 6-84 Figure 6-85 Figure 6-86 Figure 6-87 Figure 6-88 Figure 6-89 Figure 6-90 Figure 6-91 Figure 6-92 Figure 6-93 Figure 6-94 Figure 6-95 Figure 6-96 Figure 6-97 Figure 6-98 Figure 6-99 Figure 6-100 Figure 6-101 Figure 6-102 Figure 6-103 Figure 6-104 Figure 6-105 Figure 6-106 Figure 6-107 Figure 6-108 Figure 6-109 Figure 6-110 Figure 6-111 Figure 6
Figure 6-115 Figure 6-116 Figure 6-117 Figure 6-118 Figure 6-119 Figure 6-120 Figure 6-121 Figure 6-122 Figure 6-123 Figure 6-124 Figure 6-125 Figure 6-126 Figure 6-127 Figure 6-128 Figure 6-129 Figure 6-130 Figure 6-131 Figure 6-132 Figure 6-133 Figure 6-134 Figure 6-135 Figure 6-136 Figure 6-137 Figure 6-138 Figure 6-139 Figure 6-140 Figure 6-141 Figure 6-142 Figure 6-143 Figure 6-144 Figure 6-145 Figure 6-146 Figure 6-147 Figure 6-148 Figure 6-149 Figure 6-150 Figure 6-151 Figure 6-152 Figure 6-153 Figur
Figure 6-159 Figure 6-160 Figure 6-161 Figure 6-162 Figure 6-163 Figure 6-164 Figure 6-165 Figure 6-166 Figure 6-167 Figure 6-168 Figure 6-169 Figure 6-170 Figure 6-171 Figure 6-172 Figure 6-173 Figure 6-174 Figure 6-175 Figure 6-176 Figure 6-177 Figure 6-178 Figure 6-179 Figure 6-180 Figure 6-181 Figure 6-182 Figure 6-183 Figure 6-184 Figure 6-185 Figure 6-186 Figure 6-187 Figure 6-188 Figure 6-189 Figure 6-190 Figure 6-191 Figure 6-192 Figure 6-193 Figure 6-194 Figure 6-195 Figure 6-196 Figure 6-197 Figur
Figure 6-203 Reinstall the main-drive assembly (4 of 11) .............................................................................. 293 Figure 6-204 Reinstall the main-drive assembly (5 of 11) .............................................................................. 294 Figure 6-205 Reinstall the main-drive assembly (6 of 11) .............................................................................. 294 Figure 6-206 Reinstall the main-drive assembly (7 of 11) ...................................
Figure 7-20 Figure 7-21 Figure 7-22 Figure 7-23 Figure 7-24 Figure 7-25 Figure 7-26 Figure 7-27 Figure 7-28 Figure 7-29 Figure 7-30 Figure 7-31 Figure 7-32 Figure 7-33 Figure 7-34 Figure 7-35 Figure 7-36 Figure 7-37 Figure 7-38 Figure 7-39 Figure 7-40 Figure 7-41 Figure 7-42 Figure 7-43 Figure 7-44 Figure 7-45 Figure 7-46 Figure 7-47 Figure 7-48 Figure 7-49 Figure 7-50 Figure 8-1 Figure 8-2 Figure 8-3 Figure 8-4 Figure 8-5 Figure 8-6 Figure 8-7 Figure 8-8 Figure 8-9 Figure 8-10 Figure 8-11 Figure 8-12 Figur
Figure 8-14 Figure 8-15 Figure 8-16 Figure 8-17 Figure 8-18 Figure 8-19 Figure 8-20 ENWW Fusing (fixing) assembly (1 of 2) ................................................................................................. 480 Fusing (fixing) assembly (2 of 2) ................................................................................................. 482 PCAs ...........................................................................................................................................
xxvi ENWW
1 ENWW Product basics ● Product comparison ● Product features ● Product view 1
Product comparison Model Features HP Color LaserJet CP3525 ● 100-sheet multipurpose input tray (Tray 1) ● 250-sheet input tray (Tray 2) ● 250-sheet, face-down output bin ● Hi-speed USB 2.0 port ● 256 megabytes (MB) of random access memory (RAM) ● 100-sheet multipurpose input tray (Tray 1) ● 250-sheet input tray (Tray 2) ● 250-sheet, face-down output bin ● Hi-speed USB 2.
Product features Speed and throughput Resolution Memory ● Prints up to 30 pages per minute (ppm) on letter-size paper and 30 ppm on A4-size paper ● As quick as 12 seconds to print the first page ● Recommended maximum monthly print volume of 5,000 pages ● A 515 megahertz (MHz) microprocessor ● 600 dots per inch (dpi) with Image Resolution Enhancement technology 3600 for optimum overall imaging ● 1200 x 600 dpi for detailed line work and small text ● HP Color LaserJet CP3525 and HP Color Laser
● Two-sided printing: The HP Color LaserJet CP3525dn printer and HP Color LaserJet CP3525x printer support automatic two-sided printing. The other models support manual two-sided printing. ● Standard output bin: The standard output bin is located on the top of the product. This bin can hold up to 250 sheets of paper. The product has a sensor that indicates when the bin is full. For information about supported paper sizes, see Supported paper and print media sizes on page 44.
Security Self-help ENWW ● Secure Disk Erase ● Security lock (optional) ● Job retention ● User PIN authentication for stored jobs ● IPsec security ● HP encrypted High Performance EIO hard drive (optional) ● Show-me-how pages that you can print from the control panel ● Job aids for specific tasks available from www.hp.com/support/cljcp3525.
Product view Front view 6 1 Output-bin extension 2 Standard output bin 3 Duplex switchback guide (HP Color LaserJet CP3525dn printer and HP Color LaserJet CP3525x printer only) 4 Control panel 5 Right door (access for clearing jams) 6 Tray 1 (pull the handle to open the tray) 7 Power button (illuminates when turned on) 8 Lower-right door (access for clearing jams) 9 Tray 2 10 Optional Tray 3 (included with the HP Color LaserJet CP3525x printer) 11 Front door (access to print cartridge
Back view 1 2 3 ENWW 1 Slot for a cable-type security lock 2 Interface ports 3 Power connection Product view 7
Interface ports 1 2 3 1 EIO interface expansion slot 2 RJ-45 network port (not activated with the HP Color LaserJet CP3525 printer) 3 Hi-speed USB 2.0 printing port Serial number and model number location The model number and serial number are listed on an identification label located on the back of the product. The serial number contains information about the country/region of origin, the product version, production code, and the production number of the product.
2 ENWW Control panel ● Use the control panel ● Control panel menus ● Menu hierarchy ● Show Me How menu ● Retrieve job menu ● Information menu ● Paper handling menu ● Configure device menu ● Diagnostics menu ● Service menu 9
Use the control panel The control panel has a color, graphical and text display that provides access to all product functions. Use the buttons to control jobs and the product status. The lights indicate overall product status. Control-panel layout The control panel includes a color, graphical and text display, job-control buttons, and three light-emitting diode (LED) status lights.
Interpreting control panel indicator lights Indicator On Off Flashing Ready Product is online (able to accept and process data). Product is offline or is turned off. Product is attempting to stop printing and go offline. Processed data is present in the product, but more data is needed to complete the job. Product is not processing or receiving data. Product is processing and receiving data. A critical error has occurred. Product requires attention. No conditions exist that require attention.
Control panel menus You can perform most routine printing tasks from the computer through the printer driver or software application. This is the most convenient way to control the product, and will override the product controlpanel settings. You can also control the product by changing settings in the product’s control panel. Use the control panel to access features not supported by the printer driver or software application, and to configure trays for paper size and type.
Menu hierarchy The following top-level menus are available: ENWW ● SHOW ME HOW. See Show Me How menu on page 14 for more information. ● RETRIEVE JOB. See Retrieve job menu on page 15 for more information. ● INFORMATION. See Information menu on page 17 for more information. ● PAPER HANDLING. See Paper handling menu on page 18 for more information. ● CONFIGURE DEVICE. See Configure device menu on page 19 for more information. ● DIAGNOSTICS. See Diagnostics menu on page 40 for more information.
Show Me How menu The SHOW ME HOW menu prints pages that provide more information about the product. To display: Press the Menu button 14 , and then select the SHOW ME HOW menu. Item Explanation CLEAR JAMS Provides instructions for clearing jams on the product. LOAD TRAYS Provides instructions for loading and configuring trays. LOAD SPECIAL MEDIA Provides instructions for loading special print media such as envelopes, transparencies, and labels.
Retrieve job menu The RETRIEVE JOB menu allows you to view listings of all stored jobs. To display: Press the Menu button , and then select the RETRIEVE JOB menu. NOTE: Values that have an asterisk (*) are the factory-default values. Some menu items have no default. Item Sub-item Options Description Each user who has stored jobs is listed by name. Select the appropriate user name to see a list of stored jobs.
Item Sub-item Options Description copies in the driver and specify two copies on the control panel, a total of four copies of the job are printed.
Information menu Use the INFORMATION menu to access and print specific product information. To display: Press the Menu button , and then select the INFORMATION menu. Item Description PRINT MENU MAP Prints the control-panel menu map, which shows the layout and current settings of the control-panel menu items. PRINT CONFIGURATION Prints the product configuration pages, which show the printer settings and installed accessories.
Paper handling menu Use this menu to configure input trays by size and type. It is important to correctly configure the trays with this menu before you print for the first time. To display: Press the Menu button , and then select the PAPER HANDLING menu. NOTE: If you have used other HP LaserJet product models, you might be accustomed to configuring Tray 1 to First mode or Cassette mode. On HP Color LaserJet CP3525 Series printers, setting Tray 1 to ANY SIZE and ANY TYPE is equivalent to First mode.
Configure device menu The CONFIGURE DEVICE menu allows you to change the default printing settings, adjust the print quality, change the system configuration and I/O options, and reset the default settings. Printing menu These settings affect only jobs without identified properties. Most jobs identify all of the properties and override the values set from this menu. , select the CONFIGURE DEVICE menu, and then select the To display: Press the Menu button PRINTING menu.
Menu item Values Description printable area is eighty 10-pitch characters on a single line. PRINT PS ERRORS OFF* Allows you to select to print PS error pages. ON PRINT PDF ERRORS OFF* Allows you to select to print PDF error pages. ON PCL sub-menu This menu configures settings for the printer control language. To display: Press the Menu button , select the CONFIGURE DEVICE menu, select the PRINTING menu, and then select the PCL menu.
Item Values MEDIA SOURCE MAPPING ENWW Description The PCL5 MEDIA SOURCE MAPPING command selects an input tray by a number that maps to the various available trays and feeders. STANDARD* The numbering is based on newer HP LaserJet printers with updated changes to the numbering of trays and feeders. CLASSIC The numbering is based on HP LaserJet 4 printers and earlier models.
Print Quality menu To display: Press the Menu button PRINT QUALITY menu. , select the CONFIGURE DEVICE menu, and then select the NOTE: Values that have an asterisk (*) are the factory-default values. Some menu items have no default. Item Sub-item Values Description ADJUST COLOR HIGHLIGHTS Range from +5 to –5. Default is 0. Adjust the darkness or lightness of highlights on a printed page.
Item Sub-item Values Description AUTO SENSE MODE TRAY 1 SENSING FULL SENSING (default) Sets the sensing option for Tray 1 for paper types using AUTO SENSE mode. TRANSPARENCY ONLY When FULL SENSING is selected, the product senses every page and switches modes accordingly. The product can distinguish transparencies from other paper types. When TRANSPARENCY ONLY is selected, the product senses only the first page. The product can distinguish transparencies from other paper types.
Item Sub-item Values Description reduces the effect of color-plane misregistration by overlapping the edges of adjacent objects slightly. AUTO CLEANING OFF* ON CLEANING INTERVAL 500* 1000 ● OFF turns off both trapping and adaptive halftoning. ● LIGHT sets trapping at a minimal level, and adaptive halftoning is on. ● NORMAL is the default trapping setting. Trapping is at a medium level and adaptive halftoning is on. ● MAXIMUM is the most aggressive trapping setting. Adaptive halftoning is on.
System setup menu Use the SYSTEM SETUP menu to change product- configuration defaults such as sleep mode, product personality (language), and jam recovery. To display: Press the Menu button SYSTEM SETUP menu. , select the CONFIGURE DEVICE menu, and then select the NOTE: Values that have an asterisk (*) are the factory-default values. Some menu items have no default. Item Sub-item Values Description DATE/TIME DATE - - - - /[MMM]/[DD] YEAR = Allows you to set the correct date.
Item Sub-item COLOR/BLACK MIX Values Description AUTO* This menu item establishes how the product switches from color to monochrome (black and white) mode for maximum performance and for extending print cartridge life. MOSTLY COLOR PAGES MOSTLY BLACK PAGES AUTO resets the product to the factory default setting. Select MOSTLY COLOR PAGES if nearly all of your print jobs are color with high page coverage.
Item Sub-item Values Description PS DEFER MEDIA ENABLED* This option affects how paper is handled when printing from an Adobe PS print driver. DISABLED SIZE/TYPE PROMPT DISPLAY* DO NOT DISPLAY USE ANOTHER TRAY ENABLED* DISABLED ALTERNATIVE LETTERHEAD MODE ON OFF* DUPLEX BLANK PAGES AUTO* ● ENABLED uses HP’s paperhandling model. ● DISABLED uses the Adobe PS paper-handling model. This option controls whether the tray configuration message appears whenever a tray is closed.
Item Sub-item Values Description (duplexing). Two options are available: ● AUTO enables Smart Duplexing, which instructs the product not to process both sides if the second side is blank. This can improve print speed. ● YES disables Smart Duplexing and forces the duplexer to flip the sheet of paper even if it is printed on only one side. NOTE: This option is available only for the HP Color LaserJet CP3525dn printer or the HP Color LaserJet CP3525x printer.
Item PERSONALITY Sub-item Values Description AUTO* Sets the default personality to automatic switching, PCL, PDF, or PS modes. PCL PDF PS CLEARABLE WARNINGS JOB* ON AUTO CONTINUE OFF ON* REPLACE SUPPLIES Sets whether a warning is cleared on the control panel or when another job is sent. Determines product behavior when the system generates an Auto Continuable error. Sets the product behavior for when a supply item is low.
Item Sub-item Values Description Choose OVERRIDE AT OUT 2 to allow the product to continue printing when any color supply is past the end of its estimated capacity, including the toner collection unit. This option is not recommended because of the risk of overfilling the toner collection unit, which could result in the need to service your printer. Information about the remaining toner is not available when printing in Override mode.
Item Sub-item Values Description The default depends on which black print cartridge is installed. If the standard-capacity black print cartridge is installed, the default is 8%. If the high-capacity black print cartridge is installed, the default is 7%. COLOR SUPPLY OUT STOP* AUTOCONTINUE BLACK Sets the product behavior when a color supply has reached its estimated end of life.
I/O menu Items on the I/O (input/output) menu affect the communication between the product and the computer. If the product contains an HP Jetdirect print server, you can configure basic networking parameters by using this submenu. You can also configure these and other parameters through HP Web Jetadmin or the embedded Web server. To display: Press the Menu button O menu. , select the CONFIGURE DEVICE menu, and then select the I/ NOTE: Values that have an asterisk (*) are the factory-default values.
Table 2-1 Embedded Jetdirect and EIO Jetdirect menus (continued) Item Sub-item Sub-item Values Description lease exists, DHCP RELEASE and DHCP RENEW menus are available to set DHCP lease options. Use AUTO IP for automatic link-local IPv4 addressing. An address in the form 169.254.x.x is assigned automatically. If you set this option to MANUAL, use the MANUAL SETTINGS menu to configure TCP/IPv4 parameters.
Table 2-1 Embedded Jetdirect and EIO Jetdirect menus (continued) Item Sub-item IPV6 SETTINGS Sub-item Values Description PRIMARY DNS Specify the IP address (n.n.n.n) of a Primary DNS Server. SECONDARY DNS Specify the IP address (n.n.n.n) of a Secondary Domain Name System (DNS) Server. ENABLE ON Use this item to enable or disable IPv6 operation on the print server. OFF* OFF: IPv6 is disabled. ON: IPv6 is enabled.
Table 2-1 Embedded Jetdirect and EIO Jetdirect menus (continued) Item IPX/SPX Sub-item Sub-item Values Description PROXY PORT Type the port number used by the proxy server for client support. The port number identifies the port reserved for proxy activity on your network, and can be a value from 0 to 65535. IDLE TIMEOUT IDLE TIMEOUT: The time period, in seconds, after which an idle TCP print data connection is closed (default is 270 seconds, 0 disables the timeout).
Table 2-1 Embedded Jetdirect and EIO Jetdirect menus (continued) Item Sub-item Sub-item RESET SECURITY Values Description YES Specify whether the current security settings on the print server will be saved or reset to factory defaults. NO* YES: Security settings are reset to factory defaults. NO: The current security settings are maintained. DIAGNOSTICS EMBEDDED TESTS This menu provides tests to help diagnose network hardware or TCP/IP network connection problems.
Table 2-1 Embedded Jetdirect and EIO Jetdirect menus (continued) Item Sub-item Sub-item Values Description NO* Select YES to choose all tests. Select NO to select individual tests. EXECUTION TIME [M] Use this item to specify the length of time (in minutes) that an embedded test will be run. You can select a value from 0 to 24 minutes. If you select zero (0), the test runs indefinitely until an error occurs or the product is turned off.
Table 2-1 Embedded Jetdirect and EIO Jetdirect menus (continued) Item Sub-item Sub-item Values Description recent test was initiated or completed. The default is 0. PERCENT LOST Shows the percent (0 to 100) of ping test packets that were sent with no response from the remote host since the most recent test was initiated or completed. The default is 0. RTT MIN Shows the minimum detected roundtrip- time (RTT), from 0 to 4096 milliseconds, for packet transmission and response. The default is 0.
Table 2-1 Embedded Jetdirect and EIO Jetdirect menus (continued) Item Sub-item Sub-item Values Description 1000TX FULL: 1000 Mbps, full-duplex operation. Resets menu The RESETS menu allows you to reset factory settings, disable and enable sleep mode, and update the product after new supplies are installed. To display: Press the Menu button RESETS menu. , select the CONFIGURE DEVICE menu, and then select the NOTE: Values that have an asterisk (*) are the factory-default values.
Diagnostics menu The DIAGNOSTICS menu allows you to run tests that can help you identify and solve problems with the product. To display: Press the Menu button , and then select the DIAGNOSTICS menu. NOTE: Values that have an asterisk (*) are the factory-default values. Some menu items have no default. Item Sub-item Values Description PRINT EVENT LOG Prints a report containing the last 50 entries in the product’s event log, starting with the most recent.
Item Sub-item Values Description COPIES 1* Determines how many pages should be sent from the specified source as part of the test. 10 50 100 500 MANUAL SENSOR TEST Performs tests to determine whether the paper path sensors are operating correctly. MANUAL SENSOR TEST 2 Performs additional tests to determine whether the paper path sensors are operating correctly. COMPONENT TEST A list of available components appears. PRINT/STOP TEST COLOR BAND TEST Range is 0 - 60,000 milliseconds.
Service menu The SERVICE menu is locked and requires a personal identification number (PIN; 09352508) for access. This menu is intended for use by authorized service personnel.
3 ENWW Paper and print media ● Supported paper and print media sizes ● Custom paper sizes ● Supported paper and print media types ● Tray and bin capacity ● Special paper or print media guidelines ● Load trays ● Configure trays 43
Supported paper and print media sizes This product supports a number of paper sizes, and it adapts to various media. NOTE: To obtain best results, select the correct paper size and type in the printer driver before printing. Table 3-1 Supported paper and print media sizes Size and dimensions Tray 1 Tray 2 Tray 3 (optional) Letter 216 x 279 mm (8.5 x 11 in) Legal 216 x 356 mm (8.5 x 14 in) A4 210 x 297 mm (8.27 x 11.69 in) RA4 215 x 305 mm (8.5 x 12.0 in) A5 148 x 210 mm (5.83 x 8.
Table 3-1 Supported paper and print media sizes (continued) Size and dimensions Tray 1 Tray 2 Tray 3 (optional) Postcard (JIS) 100 x 148 mm (3.9 x 5.8 in) Double Postcard (JIS) 148 x 200 mm (5.8 x 7.9 in) 16K 184 x 260 mm (7.2 x 10.2 in) 16K 195 x 270 mm (7.7 x 10.6 in) 16K 197 x 273 mm (7.8 x 10.8 in) 8.5 x 13 216 x 330 mm (8.5 x 13 in) Envelope Commercial #10 105 x 241 mm (4.13 x 9.49 in) Envelope #9 100 mm x 226 mm (3.9 x 8.9 in) Envelope B5 176 x 250 mm (6.93 x 9.
Custom paper sizes This product supports a variety of custom paper sizes. Supported custom sizes are sizes that are within the minimum- and maximum-size guidelines for the product but are not listed in the supported paper sizes table. When using a supported custom size, specify the custom size in the print driver, and load the paper in a tray that supports custom sizes.
Supported paper and print media types For a complete list of specific HP-brand paper that this product supports, go to www.hp.com/support/ cljcp3525.
Tray and bin capacity Tray or bin Paper type Specifications Quantity Tray 1 Paper Range: Maximum stack height: 10 mm (0.39 in) 60 g/m2 (16 lb) bond to 216 g/m2 (58 lb) bond Equivalent to 100 sheets of 75 g/ m2 (20 lb) bond Envelopes Less than 60 g/m2 (16 lb) bond to 90 g/m2 (24 lb) bond Up to 10 envelopes Labels Maximum 0.102 mm (0.004 in) thick Maximum stack height: 10 mm (0.39 in) Transparencies Minimum 0.102 mm (0.004 in) thick Maximum stack height: 10 mm (0.
Special paper or print media guidelines This product supports printing on special media. Use the following guidelines to obtain satisfactory results. When using special paper or print media, be sure to set the type and size in your print driver to obtain the best print results. CAUTION: HP LaserJet printers use fusers to bond dry toner particles to the paper in very precise dots. HP laser paper is designed to withstand this extreme heat.
Load trays You can load different media in the trays and then request media by type or size by using the control panel. Paper orientation for loading trays If you are using paper that requires a specific orientation, load it according to the information in the following tables. NOTE: The ALTERNATIVE LETTERHEAD MODE setting affects the way you load letterhead or preprinted paper. This setting is turned off by default. For more information, see System setup menu on page 25.
Paper type Envelopes Image orientation Duplex mode How to load paper How to load paper ALTERNATIVE LETTERHEAD MODE = Off ALTERNATIVE LETTERHEAD MODE = On Long edge of the 1-sided printing envelope feeding into the product Face down Not applicable Short edge of the 1-sided printing envelope feeding into the product Face down Top edge leading into the product Not applicable Top edge toward the back of the product NOTE: ALTERNATIVE LETTERHEAD MODE will print in duplex mode automatically.
Tray 2 or optional Tray 3 Paper type Preprinted or letterhead Image orientation Portrait Duplex mode 1-sided printing 2-sided printing Prepunched 52 Portrait or landscape 1- or 2-sided printing Chapter 3 Paper and print media How to load paper How to load paper ALTERNATIVE LETTERHEAD MODE = Off ALTERNATIVE LETTERHEAD MODE = On Face up Face down Top edge at the right side of the tray Top edge at the left side of the tray Face down Face down Top edge at the left side of the tray Top edg
Load Tray 1 TIP: To see an animation of this procedure go to this Web site: www.hp.com/go/cljcp3525-loadtray1. CAUTION: To avoid jams, never add or remove paper from Tray 1 during printing. ENWW 1. Open Tray 1. 2. Fold out the tray extension to support the paper and set the side guides to the correct width. 3. Load paper in the tray face down and the short, top edge going into the product first.
54 4. Make sure the stack fits under the tabs on the guides and does not exceed the load-level indicators. 5. Adjust the side guides so that they lightly touch the paper stack but do not bend it.
Print envelopes If your software does not automatically format an envelope, specify Landscape for page orientation in your software program or printer driver. Use the following guidelines to set margins for return and destination addresses on Commercial #10 or DL envelopes: Address type Left margin Top margin Return 15 mm (0.6 in) 15 mm (0.6 in) Destination 102 mm (4 in) 51 mm (2 in) For envelopes of other sizes, adjust the margin settings accordingly.
2. Adjust the paper-length and paper-width guides by squeezing the adjustment latch and sliding the guides to the size of the paper being used. 3. Load paper into the tray face up. Check the paper to verify the guides lightly touch the stack, but do not bend it. NOTE: To prevent jams, do not overfill the tray. Be sure the top of the stack is below the tray full indicator. NOTE: If the tray is not adjusted correctly, an error message might appear during printing or the paper might jam. 4.
5. The control panel shows the tray’s paper type and size. If the configuration is not correct, follow the instructions on the control panel to change the size or type. Load the optional 500-sheet paper and heavy media tray (Tray 3) Tray 3 holds up to 500 sheets of standard paper. The product automatically detects the following standard sizes of paper in Tray 3: Letter, Legal, Executive, A4, A5, and B5 (JIS). CAUTION: Do not print envelopes or unsupported sizes of paper from Tray 3.
2. Adjust the paper-length and paper-width guides by squeezing the adjustment latches and sliding the guides to the size of the paper being used. 3. Load paper into the tray face up. Check the paper to verify the guides lightly touch the stack, but do not bend it. NOTE: To prevent jams, do not overfill the tray. Be sure the top of the stack is below the tray full indicator. NOTE: If the tray is not adjusted correctly, an error message might appear during printing or the paper might jam. 4.
5. The control panel shows the tray’s paper type and size. If the configuration is not correct, follow the instructions on the control panel to change the size or type. Load custom-size paper into Tray 3 To use custom media, change the size setting on the control panel to CUSTOM and set the unit of measure, X DIMENSION and Y DIMENSION. ENWW 1. Slide open the tray. 2.
60 3. Load paper into the tray face up. Check the paper to verify the guides lightly touch the stack, but do not bend it. 4. Slide the tray into the product. The control panel shows the paper type and size.
5. The control panel prompts you to set the paper size and type. Select the CUSTOM setting, and then configure the X and Y dimensions of the custom paper size. NOTE: See the label in the paper tray, or the following illustration, to determine the X and Y dimensions. Y X Load 4 x 6 inch (10 x 15 cm) size paper into Tray 3 TIP: To see an animation of this procedure go to this Web site: www.hp.com/go/cljcp3525-loadtray3-4x6.
62 2. Adjust the paper-length and paper-width guides by squeezing the adjustment latches and adjusting the guides to the fully opened position. 3. Fit the HP postcard media insert into Tray 3 and then slide the insert to the right until it snaps into place. 4. Load 4 x 6 inch (10 x 15 cm) paper into the tray face up.
ENWW 5. Adjust the paper-length and paper-width guides by squeezing the adjustment latches and adjusting the guides to the fully closed position. 6. Slide the tray into the product. 7. The control panel prompts you to set the paper size and type. Select either 4 x 6 inch or 10 x 15 cm size paper.
Remove the HP postcard media insert 64 1. Adjust the paper-length and paper-width guides by squeezing the adjustment latches and adjusting the guides to the fully opened position. 2. To remove the HP postcard media insert, lift the tab, slide the insert toward the center of the tray, and then lift the insert to remove.
Configure trays The product automatically prompts you to configure a tray for type and size in the following situations: ● When you load paper into the tray ● When you specify a particular tray or media type for a print job through the printer driver or a software program and the tray is not configured to match the print-job’s settings The following message appears on the control panel:TRAY [TYPE] [SIZE] To change size or type press OK. To accept settings press .
Configure a tray by using the Paper Handling menu You can also configure the trays for type and size without a prompt from the product. 1. Press the Menu button 2. Press the down arrow to highlight the PAPER HANDLING menu, and then press the OK button. 3. Press the down arrow OK button. to highlight the size or type setting for the desired tray, and then press the 4. Press the up arrow or the down arrow to highlight the size or type.
Select the media by source, type, or size In the Microsoft Windows operating system, three settings affect how the printer driver tries to pull media when you send a print job. Source, Type, and Size settings appear in the Page Setup, Print, or Print Properties dialog boxes in most software programs. Unless you change these settings, the product automatically selects a tray using the default settings. Source To print by Source select a specific tray for the product to pull from.
68 Chapter 3 Paper and print media ENWW
4 ENWW Manage and maintain the product ● Information pages ● HP Easy Printer Care ● Embedded Web server ● Use HP Web Jetadmin software ● Security features ● Manage supplies ● Clean the product ● Product updates 69
Information pages Information pages provide details about the product and its current configuration. 1. Press the Menu 2. Press the down arrow 3. Press the down arrow button. to highlight the INFORMATION menu, and then press the OK button. to highlight the required information, and then press the OK button to print. For more information about the available information pages, see Information menu on page 17.
HP Easy Printer Care Open the HP Easy Printer Care software Use one of the following methods to open the HP Easy Printer Care software: ● On the Start menu, select Programs, select Hewlett-Packard, select HP Easy Printer Care, and then click Start HP Easy Printer Care. ● In the Windows system tray (in the lower-right corner of the desktop), double-click the HP Easy Printer Care icon. ● Double-click the desktop icon.
Section Options Support tab ● Device Status section: This section shows product-identification information and the product status. It indicates product-alert conditions, such as a print cartridge that is at its estimated end of life. After you correct a problem with the product, click the refresh button in the upper-right corner of the window to update the status.
Section Options Alert Settings link Click Alert Settings to open the Alert Settings window, in which you can configure alerts for each product. NOTE: This item is available from the Overview and Support tabs. Color Access Control ● Alerting is on or off: Activates or deactivates the alerts feature. ● Printer Alerts: Select the option to receive alerts for critical errors only, or for any error. ● Job Alerts: For products that support it, you can receive alerts for specific print jobs.
Embedded Web server Use the embedded Web server to view product status, configure product network settings, and to manage printing functions from your computer instead of from the product control panel. The following are examples of what you can do using the embedded Web server: NOTE: When the product is directly connected to a computer, use the HP Easy Printer Care to view the product status instead of the embedded Web server. ● View product status information.
Embedded Web server sections Tab or section Options Information tab ● Device Status: Shows the product status and shows the estimated life remaining of HP supplies. The page also shows the type and size of print paper set for each tray. To change the default settings, click Change Settings. ● Configuration Page: Shows the information found on the configuration page. ● Supplies Status: Shows the estimated life remaining of HP supplies. This page also provides supplies part numbers.
Tab or section Options ● Language: Allows you to determine the language in which to display the embedded Web server information. ● Date & Time: Allows time synchronization with a network time server. ● Wake Time: Allows you to set or edit a wake time for the product to become ready. ● Restrict Color: Allows you to permit or restrict color printing. You can specify permissions for individual users or for jobs that are sent from specific software programs.
Use HP Web Jetadmin software HP Web Jetadmin is a Web-based software solution for remotely installing, monitoring, and troubleshooting network-connected peripherals. Management is proactive, allowing network administrators the ability to resolve issues before users are affected. Download this free, enhancedmanagement software at www.hp.com/go/webjetadmin. Device plug-ins can be installed into HP Web Jetadmin to provide support for specific product features.
Security features Secure the embedded Web server Assign a password for access to the embedded Web server so that unauthorized users cannot change the product settings. 1. Open the embedded Web server. See Embedded Web server on page 74. 2. Click the Settings tab. 3. On the left side of the window, click the Security menu. 4. Click the Device Security Settings button. 5. In the Device Password area, type the password next to New Password, and type it again next to Verify Password. 6. Click Apply.
Changing the Secure Disk Erase mode does not overwrite previous data on the disk, nor does it immediately perform a full-disk sanitization. Changing the Secure Disk Erase mode changes how the product cleans up temporary data for jobs after the erase mode has been changed. Additional Information For additional information about the HP Secure Disk Erase feature, see the HP support flyer or go to www.hp.com/go/webjetadmin. Job storage To securely print a private job, use the personal job option.
3. Select the product. 4. In the Device Tools drop-down list, select Configure. 5. Select Security from the Configuration Categories list. 6. Type a Device Password. 7. In the Control Panel Access section, select Maximum Lock. This prevents unauthorized users from gaining access to configuration settings. Lock the formatter cage The formatter cage, on the back of the product, has a slot that you can use to attach a security cable.
Manage supplies Use genuine HP print cartridges for the best printing results. Print-cartridge storage Do not remove the print cartridge from its package until you are ready to use it. CAUTION: To prevent damage to the print cartridge, do not expose it to light for more than a few minutes. HP policy on non-HP print cartridges Hewlett-Packard Company cannot recommend the use of non-HP print cartridges, either new or remanufactured.
The following figure illustrates the location of each supply item. Figure 4-2 Supply item locations 2 3 1 1 Toner collection unit 2 Print cartridges 3 Fuser Supply replacement guidelines To facilitate the replacement of supplies, keep the following guidelines in mind when setting up the product. ● Allow sufficient space in the front and on the right side of the product for removing supplies. ● The product should be located on a flat, sturdy surface.
Change print cartridges When a print cartridge approaches the end of its estimated useful life, the control panel displays a message recommending that you order a replacement. The product can continue to print using the current print cartridge until the control panel displays a message instructing you to replace the cartridge, unless you have selected the option to override the message by using the REPLACE SUPPLIES menu. For more information about the REPLACE SUPPLIES menu, see System setup menu on page 25.
3. Store the used print cartridge in a protective bag. Information about recycling used print cartridges is on the print-cartridge box. 4. Remove the new print cartridge from its protective bag. NOTE: Be careful not to damage the memory tag on the print cartridge. 5. 84 Grasp both sides of the print cartridge and distribute the toner by gently rocking the print cartridge.
6. Remove the orange protective cover from the print cartridge. CAUTION: Avoid prolonged exposure to light. CAUTION: Do not touch the green roller. Doing so can damage the cartridge. ENWW 7. Align the print cartridge with its slot and insert the print cartridge until it clicks into place. 8. Close the front door.
Change the toner collection unit Replace the toner collection unit when the control panel prompts you. NOTE: The toner collection unit is designed for a single use. Do not attempt to empty the toner collection unit and reuse it. Doing so could lead to toner being spilled inside the product, which could result in reduced print quality. After use, return the toner collection unit to HP’s Planet Partners program for recycling. TIP: To see an animation of this procedure go to this Web site: www.hp.
ENWW 3. Place the attached blue cap over the blue opening at the top of the unit. 4. Remove the new toner collection unit from its packaging. 5. Insert the bottom of the new unit into the product first and then push the top of the unit until it clicks into place.
6. Close the front door. NOTE: If the toner collection unit is not installed correctly, the front door does not close completely. To recycle the used toner collection unit, follow the instructions included with the new toner collection unit.
Install memory You can install more memory for the product by adding a dual inline memory module (DIMM). CAUTION: Static electricity can damage DIMMs. When handling DIMMs, either wear an antistatic wrist strap, or frequently touch the surface of the DIMM antistatic package and then touch bare metal on the product. Install DDR2 memory DIMMs 1. Turn the product off. 2. Disconnect all power and interface cables. NOTE: This illustration might not show all the cables.
3. Locate the thumb screws on the formatter board in the rear of the product. 4. Unscrew the thumb screws and then pull the formatter board from the product. Place the formatter board on a clean, flat, grounded surface. 5. To replace a DIMM that is currently installed, spread the latches apart on each side of the DIMM slot, lift the DIMM up at an angle, and pull it out.
Holding the DIMM by the edges, align the notch on the DIMM with the bar in the DIMM slot at an angle and firmly press the DIMM into the slot until it is fully seated. When installed correctly, the metal contacts are not visible. OXO XOX 7. O XOX O OXO XOX XOX O XOX OXO XOX XO XO XO XO XO O OXO XOX XO XOX XO XO XO XOXOXO XOXOXO XOXOXO XO XOXOXO XOXOXOXOXOXO XOXOXOXOXOXO XOXOXOXO XO XO XO XOXOXO XO XO XO XO XO XOXO XOXOXO XOXOXO XOXOXO XOXOXO XOXOXO XOXOXO 8.
10. Reconnect the power cable and interface cables, and turn the product on. Enable memory for Windows 1. Windows XP, Windows Server 2003, and Windows Server 2008 (using the default Start menu view): Click Start, click Settings, and then click Printers and Faxes. -orWindows XP, Windows Server 2003, and Windows Server 2008 (using the Classic Start menu view): Click Start, click Settings, and then click Printers.
NOTE: This example shows installing an HP Jetdirect print server card. ENWW 1. Turn the product off. 2. Disconnect all power and interface cables. 3. Loosen and remove the two retaining screws holding the cover for the EIO slot, and then remove the cover. You will not need these screws and the cover again. They can be discarded.
94 4. Firmly insert the HP Jetdirect print server card into the EIO slot. 5. Insert and tighten the retaining screws that came with the print server card. 6. Reconnect the power cable and remaining interface cables, and turn the product on. 7. Print a configuration page. An HP Jetdirect configuration page that contains network configuration and status information should also print.
If it does not print, turn the product off, and then uninstall and reinstall the print server card to ensure that it is completely seated in the slot. 8. ENWW Perform one of these steps: ● Choose the correct port. See the computer or operating system documentation for instructions. ● Reinstall the software, choosing the network installation this time.
Clean the product Over time, particles of toner and paper accumulate inside the product. This can cause print-quality problems during printing. Cleaning the product eliminates or reduces these problems. Clean the paper path and print-cartridge areas every time that you change the print cartridge or whenever print-quality problems occur. As much as possible, keep the product from dust and debris.
Product updates This product has remote firmware update (RFU) capability. Use this information to upgrade the product firmware. Determine the current firmware version 1. Press the Menu button 2. Press the down arrow to highlight the INFORMATION menu, and then press the OK button. 3. Press the down arrow OK button to print. to highlight the PRINT CONFIGURATION option, and then press the . The firmware datecode is listed on the Configuration page in the section called Device Information.
NOTE: To use this method, install the printer driver for this product on your computer and then connect the product directly to your computer through a USB cable. Alternatively, have the customer download the utility, so they can use it whether the product is directly connected to their PC or connected through the network. Depending on the speed of your PC, the firmware upgrade process can be complete on the product, before the progress bar on the screen completes.
NOTE: The product turns off and then on automatically to activate the update. When the update process is complete, a Ready message displays on the product control panel. Use FTP to upgrade the firmware on a network connection 1. Take note of the IP address on the HP Jetdirect page. The HP Jetdirect page is the second page that prints when you print the configuration page. NOTE: Before upgrading the firmware, make sure that the product is not in Sleep mode.
Use Microsoft Windows commands to upgrade the firmware To update the firmware by using a network connection, follow these instructions. 1. Click Start, click Run, and then type cmd to open the command window. 2. Type the following: copy /B \\\, where is the name of the .RFU file (including the path), is the name of the computer from which the product is being shared, and is the product share name.
NOTE: You can also use FTP or the HP Jetdirect Embedded Web Server to update the HP Jetdirect firmware. For more information, go to http://www.hp.com/go/wja_firmware.
102 Chapter 4 Manage and maintain the product ENWW
5 ENWW Theory of operation ● Basic operation ● Engine-control system ● Laser/scanner system ● Image-formation system ● Pickup, feed, and delivery system ● Jam detection ● Optional paper feeder 103
Basic operation The product routes all high-level processes through the formatter, which stores font information, processes the print image, and communicates with the host computer.
Table 5-1 Sequence of operation Period Duration Waiting From the time the power is turned on, the ● door is closed, or when the product exits Sleep mode until the product is ready for ● printing Standby Initial rotation Printing Last rotation ENWW From the end of the waiting sequence or the last rotation until the formatter receives a print command or until the product is turned off From the time the formatter receives a print command until the paper enters the paper path From the time the first
Engine-control system The engine-control system receives commands from the formatter and interacts with the other main systems to coordinate all product functions.
DC controller The DC controller controls the operational sequence of the printer.
Clutches Component abbreviation Component name CL1 Duplex re-pickup clutch (HP Color LaserJet CP3525dn and HP Color LaserJet CP3525x only) Switches Table 5-3 Switches Component abbreviation Component name SW1, SW2 5V interlock switch SW3 24V interlock switch SW4 Power switch Test print switch 108 Chapter 5 Theory of operation ENWW
Sensors Table 5-4 Sensors Component abbreviation Component name SR1 Drum home position sensor 1 SR2 Drum home position sensor 2 SR3 Drum home position sensor 3 SR5 Fuser (fixing) delivery sensor SR6 Delivery tray media full sensor SR7 Fuser (fixing) pressure release sensor SR8 TOP (top of page) sensor SR9 Cassette-media-stack surface sensor SR11 Developing home position sensor SR13 Cassette presence sensor SR14 Loop sensor 1 SR15 Loop sensor 2 SR17 Primary-transfer-roller disengag
Table 5-5 Motors Abbreviation Name Purpose Type Failure detection M2 Fuser (fixing) motor Drives the Fuser (fixing) roller, the delivery roller, and the Fuser (fixing) pressure roller DC motor Yes M3 Drum motor 1 Drives the photosensitive drum (yellow/magenta), developing unit (yellow), and primary charging roller (yellow/ magenta) DC motor Yes M4 Drum motor 2 Drives the photosensitive drum (cyan), developing unit (magenta/cyan), and primary charging roller (cyan) DC motor Yes M5 Drum m
Table 5-6 Fans Abbreviation Name Cooling area Type Speed FM1 Power supply fan Around the power supply unit Intake Full/half FM2 Cartridge fan Around the cartridges Intake Full/half FM3 Delivery fan Around the delivery unit Intake Full/half High-voltage power supply The high-voltage power supply delivers the high-voltage biases to the following components used to transfer toner during the image-formation process: ● Primary-charging roller (in the cartridge) ● Developing roller (in the c
Table 5-7 High-voltage power supply circuits Circuit Description Primary-charging-bias generation DC negative bias is applied to the surface of the photosensitive drum to prepare it for image formation. Developing-bias generation DC negative bias adheres the toner to each photosensitive drum during the imageformation process. Primary-transfer-bias generation DC positive bias transfers the latent toner image from each photosensitive drum onto the ITB.
Low-voltage power supply The low-voltage power-supply circuit converts the AC power from the wall receptacle into the DC voltage that the product components use. The product has two low-voltage power-supplies for 110 Volt or 220 Volt input. Figure 5-5 Low-voltage power-supply circuit Fuser control circuit The low-voltage power supply converts the AC power into three DC voltages, which it then subdivides, as described in the following table.
Table 5-8 Converted DC voltages (continued) Main DC voltage Sub-voltage Behavior +24VB Interrupted when the front door or right door open Stopped during Sleep (powersave) mode +5 V +3.3 V +5VA Constantly supplied +5VC Interrupted when the front door or right door open 3.3V Constantly supplied 3.
Fuser (fixing) control The fuser-control circuit controls the fuser temperature. The product uses an on-demand fusing method. Figure 5-6 Fuser (fixing) components FUSER HEATING CONTROL signal Fuser control circuit FUSER TEMPERATURE signal Fuser heater safety circuit Fuser sleeve Table 5-9 Fuser (fixing) components Type of component Abbreviation Name Function Heaters H1 Fuser heater Heats the fuser sleeve.
Fuser (fixing) temperature-control circuit The temperatures of the two rollers in the fuser fluctuate according to the stage of the printing process. The DC controller sends commands to the fuser-control circuit to adjust temperatures.
Fuser (fixing) over-temperature protection To protect the fuser from excessive temperatures, the product has four layers of protective functions. If one function fails, the subsequent functions should detect the problem. ● ● DC controller: When a thermistor or thermopile detects a temperature above a certain threshold, the DC controller interrupts power to the specific heater.
● Abnormal temperature rise: The DC controller determines an abnormal temperature rise if the detected temperature of TH1 does not rise 2° C within a specified time period after the fuser (fixing) motor is turned on, or if the detected temperature of the thermistors does not rise to a specified temperature for a specified time after the fuser (fixing) motor is turned on.
Laser/scanner system The laser/scanner system forms the latent electrostatic image on the photosensitive drums according to the VIDEO signals sent from the formatter. The product has two laser/scanners: one for yellow and magenta and the other for cyan and black. The formatter sends the DC controller instructions for the image of the page to be printed. The DC controller signals the lasers to emit light, and the laser beams pass through lenses and onto the scanner mirror, which rotates at a constant speed.
The DC controller determines that a laser/scanner has failed when any of the following conditions occurs: ● Laser failure: The detected laser intensity does not match a specified value when the product initializes. ● Beam-detect (BD) failure: The BD interval is outside a specified range during printing. ● Scanner-motor failure: The scanner motor does not reach a specified rotation speed within a certain time after it begins rotating.
Image-formation system The image-formation system creates the printed image on the paper. The system consists of the laser/ scanners, print cartridges, imaging drums, ITB, and fuser.
Image-formation process The image-formation system consists of ten steps divided into six functional blocks. Figure 5-10 Image-formation process Fusing Fuser Y M C K Functional block Steps Description Latent image formation 1. Pre-exposure An invisible latent image forms on the surface of the photosensitive drums. 2. Primary charging 3. Laser-beam exposure Development 4. Development Toner adheres to the electrostatic latent image on the photosensitive drums. Transfer 5.
Step 1: Pre-exposure Light from the pre-exposure LED strikes the surface of the photosensitive drum to remove any residual electrical charges from the drum surface. Figure 5-11 Pre-exposure Step 2: Primary charging The primary-charging roller contacts the photosensitive drum and charges the drum with negative potential.
Step 3: Laser-beam exposure The laser beam strikes the surface of the photosensitive drum in the areas where the image will form. The negative charge neutralizes in those areas, which are then ready to accept toner. Figure 5-13 Laser-beam exposure Step 4: Development Toner acquires a negative charge as the developing cylinder contacts the developing blade.
complete toner image transfers onto the ITB, beginning with yellow, followed by magenta, cyan, and black. Figure 5-15 Primary transfer Step 6: Secondary transfer The paper acquires a positive charge from the secondary-transfer roller, and so it attracts the negatively charged toner from the surface of the ITB. The complete toner image transfers onto the paper.
Step 7: Separation The stiffness of the paper causes it to separate from the ITB as the ITB bends. The static-charge eliminator removes excess charge from the paper to ensure that the toner fuses correctly. Figure 5-17 Separation Step 8: Fusing To create the permanent image, the paper passes through heated, pressurized rollers to melt the toner onto the page.
Step 9: ITB cleaning The cleaning blade scrapes the residual toner off the surface of the ITB. The residual toner feed screw deposits residual toner in the toner collection box. Figure 5-19 ITB cleaning Step 10: Drum cleaning Inside the print cartridge, the cleaning blade removes residual toner from the surface of the drum to prepare it for the next image. The waste toner falls into the hopper in the print cartridge.
The DC controller rotates the drum motor to drive the photosensitive drum, developing roller, and the primary-charging roller. Figure 5-21 Print-cartridge system The DC controller rotates the drum motor to drive the photosensitive drum, developing unit, and primary charging roller. The memory tag is a non-volatile memory chip that stores information about the usage for the print cartridge.
The DC controller notifies the formatter of an error if any of the following conditions exist: ● The memory tag fails to either read to or write from the DC controller ● The RD sensors detect a missing or incorrectly installed print cartridge. ● The accumulated print time reaches a specified time period or the cartridge runs out of toner.
When the product is turned on and at the end of each print job, all four of the developing rollers disengage from the photosensitive drums. If the next print job is full-color mode, each of the developing rollers engage. If the next print job is black-only mode, only the black developing roller engages. If the DC controller does not detect any output from the developing home-position sensor, it determines that the developing-disengagement motor has failed.
Primary-transfer-roller engagement and disengagement Depending on the requirements of the print job, the primary-transfer rollers engage with the ITB so it can receive toner from the photosensitive drums.
rotating, the DC controller determines that the primary-transfer-disengagement mechanism has failed, and notifies the formatter. FUSER MOTOR CONTROL Figure 5-24 Three states of primary-transfer-roller engagement and disengagement Four colors are disengaged Fuser motor Y Y M M C C Four colors are engaged K K Y Y M M C C K Only black is engaged K Y Y M M C C K K ITB cleaning The cleaning blade in the ITB cleaner scrapes the residual toner off the ITB surface.
screw deposits the residual toner in the toner collection box. The DC control detects whether the toner collection box is full, using the toner collection-box-full sensor, and then notifies the formatter. Figure 5-25 ITB cleaning process Calibration The product calibrates itself to maintain excellent print quality. Calibration corrects color-misregistration and color-density variation.
During calibration, the product places a specific pattern of toner on the surface of the ITB. Sensors at the end of the ITB read the toner pattern to determine if adjustments are necessary. Figure 5-26 Toner patterns for calibration Color-misregistration control Internal variations in the laser/scanners can cause the toner images to become misaligned.
Image-stabilization control Environmental changes or deterioration of the photosensitive drums and toner can cause variations in the image density. The image-stabilization control reduces these fluctuations. Table 5-11 Image-stabilization controls Environment change control The DC controller monitors environmental information from internal temperature and humidity sensors. The DC controller adjusts the high-voltage bias to accommodate environmental changes.
Pickup, feed, and delivery system The pickup, feed, and delivery system uses a series of rollers to move the paper through the product.
Table 5-12 Switches and sensors for the pickup, feed, and delivery system (continued) Abbreviation Component SR21 MP tray media-presence sensor SR22 Duplex re-pickup sensor (duplex models only) Figure 5-28 Motors and solenoids for the pickup, feed, and delivery system Y M C K Table 5-13 Motors and solenoids for the pickup, feed, and delivery system ENWW Abbreviation Component M2 Fuser (fixing) motor M5 Drum motor 3 M7 Lifter motor M11 Duplex reverse motor (duplex models only) M13 Pickup
Table 5-13 Motors and solenoids for the pickup, feed, and delivery system (continued) Abbreviation Component SL2 Duplex reverse solenoid (duplex models only) SL3 Multipurpose tray pickup solenoid SL4 Cassette pickup solenoid Figure 5-29 Three main units of the pickup, feed, and delivery system Fuser/delivery block Duplex block Y M C K 138 Chapter 5 Theory of operation ENWW
Pickup-and-feed unit The pickup-and-feed unit picks an individual sheet of paper from the multipurpose tray or the cassettes, carries it through the secondary-transfer unit, and feeds it into the fuser.
Cassette pickup The sequence of steps for the cassette-tray pickup operation is the following: 1. When the product starts or the tray closes, the lifting mechanism lifts the paper stack so it is ready. 2. After receiving a print command from the formatter, the DC controller rotates the pickup motor, which causes the cassette pickup roller, cassette feed roller, and cassette separation roller to rotate. 3. The DC controller drives the cassette pickup solenoid, which rotates the cassette pickup cam.
Cassette-presence detection The cassette presence sensor is in the lifter drive unit. The sensor detects the cassette-presence sensor flag and determines whether the cassette is installed correctly. Figure 5-32 Cassette presence sensor Cassette lift operation The DC controller rotates the lifter motor (M7) and moves the lifter rack until the cassette media-stack surface sensor (SR9) detects it. The lifter lifts, and the lifting plate moves up to the position where the media can be picked up.
The DC controller lowers the lifting plate when no printing occurs to prevent media damage and pickup failure. If a print operation does not occur for a specified time, the DC controller reverses the lifter motor and moves the lifter rack until the cassette media-stack surface sensor stops detecting it.
Cassette paper-presence detection The cassette media-presence sensor detects whether paper is in the cassette. Figure 5-34 Paper-level-detection mechanism Multifeed prevention In the cassette, a separation roller prevents multiple sheets of paper from entering the paper path. The cassette pickup roller drives the separation roller through a sheet of paper. The low friction force between the sheets weakens the driving force from the cassette pickup roller.
Multipurpose tray pickup The multipurpose tray paper-presence sensor detects whether paper is in the tray. If no paper is present, the DC controller notifies the formatter. Printing does not occur until paper is in the tray. The sequence of steps for the multipurpose tray pickup operation as follows: 1. After receiving a print command from the formatter, the DC controller reverses the pickup motor, which causes the multipurpose tray separation roller to rotate. 2.
Paper feed After the pickup operation, the paper feeds through the product and into the fuser. 1. The paper passes through the feed rollers. The registration shutter aligns the paper correctly to prevent skewed printing. 2. The DC controller detects the leading edge of paper by the Top sensor (SR8) and controls the rotational speed of the pickup motor to align with the leading edge of image on the ITB. 3. The DC controller detects whether or not the media is overhead transparency, using the OHT sensor.
Skew-feed prevention The product can straighten the paper without slowing the feed operation. 1. As the paper enters the paper path, the leading edge strikes the registration shutter, which straightens the paper. The paper does not pass through the shutter . 2. The feed rollers keep pushing the paper, which creates a force on the leading edge against the registration shutter. 3. When the force is great enough, the registration shutter opens and the paper passes through.
OHT sensor on and off during the wait or initial rotation period. If the intensity of the light does not match the specified value, the DC controller determines that the OHT sensor has failed. Fusing and delivery unit The fusing and delivery unit fuses the toner onto the paper and delivers the printed page into the output bin.
To prevent these problems, the loop sensors, which are located between the secondary transfer rollers and the fuser rollers, detect whether the paper is sagging or is too taut. The DC controller adjusts the speed of the fuser motor.
Pressure-roller pressurization control To prevent excessive wear on the pressure roller and help with jam-clearing procedures, the pressure roller pressurizes only during printing and standby. The DC controller reverses the fuser motor. The fuser motor rotates the fuser pressure-release cam.
Duplexing unit (HP Color LaserJet CP3525dn and HP Color LaserJet CP3525x only) For supported models, the duplexing unit reverses the paper and feeds it through the paper path to print the second side. The duplexing unit consists of the following components: ● Duplexing-reverse unit: Installed on top of the product ● Duplexing-feed unit: Along the right side The DC controller controls the operational sequence of the duplex block.
Duplexing reverse and feed control The duplexing reverse procedure pulls the paper into the duplexing unit after it exits the fuser. The duplexing feed procedure moves the paper through the duplexer so it can enter the product paper path to print the second side of the page. 1. After the first side has printed, the duplexing flapper solenoid opens, which creates a paper path into the duplexing-reverse unit. 2.
Jam detection The product uses the following sensors to detect the paper as it moves through the paper path and to report to the DC controller if the paper has jammed. ● Fuser (fixing) delivery sensor (SR5) ● TOP (top of page) sensor (SR8) ● Loop sensor 1 (SR14) ● Loop sensor 2 (SR15) ● Duplex re-pickup sensor (SR22) Figure 5-43 Jam detection sensors Y M C K The product determines that a jam has occurred if one of these sensors detects paper at an inappropriate time.
Table 5-14 Jams that the product detects (continued) Jam Description Fuser delivery stationary jam The fuser delivery paper-feed sensor does not detect the trailing edge of the paper within a specified period after it detects the leading edge. Wrapping jam After detecting the leading edge of the paper, the fuser delivery paper-feed sensor detects the absence of paper, and it has not yet detected the trailing edge.
Optional paper feeder The 1x500-sheet paper feeder is optionally installed at bottom of the printer. The paper feeder picks up the print media and feeds it to the printer. NOTE: These optional trays are not identical to the main cassette (Tray 2). Figure 5-44 Optional paper feeder Y M C K The paper-deck drivers contain a microcomputer and control the paper feeder. The paper-deck drivers receive commands from the DC controller.
Figure 5-45 Signals for the paper feeder The input trays contain several motors, solenoids, sensors, and switches, as described in the following table.
Paper-feeder pickup and feed operation The paper feeder picks up one sheet from the paper-feeder cassette and feeds it to the product.
Paper-size detection and cassette-presence detection The paper-feeder cassette media-size switch (SW1) detects the size of paper loaded in the paper-feeder cassette. The paper-feeder driver determines the media size by monitoring the combination of the switches.
Paper size Paper-feeder cassette media-size switch settings Top switch Center switch Bottom switch A5 ON OFF OFF B5 OFF ON ON Executive ON OFF ON Letter OFF ON OFF A4 OFF OFF ON Legal ON ON OFF No cassette OFF OFF OFF The paper-feeder cassette media size switch (SW1) detects whether the paper-feeder cassette is installed correctly. The paper-feeder driver determines if a cassette is absent when all three switches are turned off.
printer recovers from sleep mode and when the paper-feeder cassette is installed. The operational sequence of the lift operation is as follows: 1. The paper-feeder driver rotates the paper-feeder lifter motor to lift the lifting plate. 2. The paper-feeder driver stops the paper-feeder lifter motor when the paper-feeder media-stack surface sensor 2 detects the stack surface. 3.
Paper-feeder multiple feed prevention The paper-feeder uses a separation roller to prevent multiple sheets of paper from entering the printer. The separation roller prevents multiple feeds of paper by allowing the paper-feeder separation roller to rotate in the same direction as the paper-feeder feed roller 1. The paper-feeder separation roller is equipped with the torque limiter.
Paper feeder jam detection The paper feeder uses the paper-feeder media-feed sensor (SR4) to detect the presence of paper and to check whether paper has jammed. Figure 5-50 Jam detection Y M C K The paper-feeder driver identifies a jam if the sensor detects paper at a specified timing stored in the paper-feeder driver. The paper-feeder driver stops printing and notifies the formatter through the DC controller of the jam.
162 Chapter 5 Theory of operation ENWW
6 ENWW Removal and replacement ● Introduction ● Removal and replacement strategy ● Electrostatic discharge ● Required tools ● Before performing service ● After performing service ● Post-service test ● DC controller connector locations ● Parts removal order ● Customer self repair (CSR) components ● External panels, covers, and doors ● Internal assemblies ● Optional paper feeder assembly (Tray 3) 163
Introduction This chapter describes the removal and replacement of field-replaceable units (FRUs) only. Replacing FRUs is generally the reverse of removal. Occasionally, notes and tips are included to provide directions for difficult or critical replacement procedures. HP does not support repairing individual subassemblies or troubleshooting to the component level. Note the length, diameter, color, type, and location of each screw. Be sure to return each screw to its original location during reassembly.
Required tools ● #2 Phillips screwdriver with a magnetic tip and a 152-mm (6-inch) shaft length ● Small flat blade screwdriver ● Needle-nose pliers ● ESD mat or ESD strap (if one is available) ● Penlight (optional) CAUTION: Always use a Phillips screwdriver (callout 1). Do not use a pozidrive screwdriver (callout 2) or any motorized screwdriver. These can damage screws or screw threads.
After performing service ● Plug in the power cable. ● Reinstall the print cartridges. ● Reinstall the tray cassette or cassettes. ● If the optional paper feeder was installed, place the product on the feeder. WARNING! The product is heavy. Do not attempt to separate the product from the optional paper feeder by yourself. Three people should lift the product off of the feeder. Post-service test Perform the following test to verify that the repair or replacement was successful. Print-quality test 1.
DC controller connector locations Figure 6-2 DC controller connector locations J126 Table 6-1 DC controller connectors ENWW J100: 24 v from low-voltage power supply (LVPS) and interlock J114: HVPS lower J126: memory tag connector J101: LVPS J115: fuser sensors J127: pre-exposure LEDs (rear), SR17, SL1 J105: interconnect board (ICB) J116: HVPS upper J130: registration density (RD) sensors (front and rear) J106: 500-sheet feeder, developing home position, laser motors J117: fuser motor J131: pi
Parts removal order Figure 6-3 Parts removal order (1 of 2) 168 Chapter 6 Removal and replacement ENWW
Figure 6-4 Parts removal order (2 of 2) ENWW Parts removal order 169
Customer self repair (CSR) components Print cartridges CAUTION: If toner gets on your clothing, wipe it off with a dry cloth and wash clothing in cold water. Hot water sets toner into fabric. 1. Open the front door. Make sure that the door is completely open.
2. Grasp the print-cartridge handle and pull out to remove. CAUTION: Do not touch the green roller. Doing so can damage the cartridge. Do not expose the cartridge to strong light. Cover the cartridge with a sheet of paper to protect it from light. Reinstallation tip Align the print cartridge with its slot and insert the print cartridge until it clicks into place.
Duplex-reverse guide 1. Grasp the duplex-reverse guide and pull it away from the product to release it. Figure 6-7 Remove the duplex-reverse guide (1 of 2) 2. Remove the guide.
Toner-collection unit NOTE: The toner-collection unit is designed for a single use. Do not try to empty the toner-collection unit and reuse it. Doing so could cause toner to spill inside the product and result in reduced print quality. For recycling information, see the product user guide. 1. Open the front door. Make sure that the door is completely open. Figure 6-9 Remove the toner-collection unit (1 of 4) 2. Grasp the blue label at the top of the toner-collection unit and remove it from the product.
3. To prevent toner spills, place the blue cap (callout 1) over the blue opening at the top of the unit (callout 2).
Formatter PCA CAUTION: ESD sensitive component. 1. Turn the product off and disconnect the power and interface cable or interface cables. 2. Unscrew the formatter thumb screws, and then firmly pull the formatter from the product. Place the formatter on a clean, flat, grounded surface. Figure 6-13 Remove the formatter NOTE: When reinstalling the formatter, push firmly on the right side to make sure the formatter is seated.
Memory DIMM Before proceeding, remove the following components: ● Formatter PCA. See Formatter PCA on page 175. Remove the memory DIMM CAUTION: ESD sensitive component. NOTE: See Enable memory for Windows on page 177 after installing a new memory DIMM. 1. Place the formatter on a clean, flat, grounded surface, and then spread the latches apart on each side of the DIMM slot.
2. Lift the DIMM up at an angle, and pull it out. Reinstallation tip Hold the DIMM by the edges. Align the notch on the DIMM with the bar in the DIMM slot at an angle and firmly press the DIMM into the slot until it is fully seated. When installed correctly, the metal contacts are not visible. Push down on the DIMM until both latches engage the DIMM. Figure 6-15 Remove the memory DIMM (2 of 2) Enable memory for Windows Use the following procedure to enable the memory if you are installing a new DIMM. 1.
Tray cassette NOTE: Use this procedure to remove the Tray 2 or optional Tray 3 cassette. 1. Pull the tray straight out of the product until it stops. Figure 6-16 Remove the tray cassette (1 of 2) 2. Carefully lift up on the tray to release it, and then remove the tray.
Fuser CAUTION: The fuser might be hot. Allow enough time after turning off the product power for the fuser to cool. 1. Open the right-door assembly. Figure 6-18 Remove the fuser (1 of 2) 2. Grasp the handles and squeeze the blue release levers. Pull the fuser straight out of the product to remove it.
Pickup roller (Tray 2) CAUTION: Do not touch the spongy roller surface unless you are replacing the roller. Skin oils on the roller can cause paper pickup problems. 1. Look up into the Tray 2 cavity (where the cassette would be installed), and pull down to release the blue roller-locking lever. Reinstallation tip When the roller is reinstalled, rotate the roller shaft several times to make sure that the shaft correctly engages the drive mechanism.
3. Rotate the roller shaft down and away from the product, and then slide the roller toward the rear of the product to release the front of the roller shaft. Figure 6-22 Remove the pickup roller (Tray 2) (3 of 4) 4. Remove the pickup roller. Reinstallation tip Make sure that the roller is orientated correctly when it is reinstalled (the large white collar should be positioned toward the front of the product.
Pickup and feed rollers (Tray 3) CAUTION: Do not touch the spongy roller surface unless you are replacing the roller. Skin oils on the roller can cause paper pickup problems. 1. Locate the Tray 3 pickup and feed rollers. TIP: The feeder is shown front side up in this procedure for clarity. You do not have to separate the product from the feeder to remove these rollers. Remove the cassette, and then reach up into the cavity to remove the rollers.
Separation roller (Tray 2) CAUTION: Do not touch the spongy roller surface unless you are replacing the roller. Skin oils on the roller can cause paper pickup problems. NOTE: Remove the Tray 2 cassette if not already removed for service. See Tray cassette on page 178. Remove two screws (callout 1), and then remove the separation roller assembly (callout 2).
Secondary transfer roller CAUTION: Do not touch the spongy roller surface unless you are replacing the roller. Skin oils on the roller can cause image quality problems. 1. Open the right-door assembly. Figure 6-27 Remove the transfer roller (1 of 3) 2. Use the blue lever (callout 1) to lower the secondary transfer assembly.
3. Grasp the roller shaft collars, and lift the transfer roller off of the product. Figure 6-29 Remove the transfer roller (3 of 3) Reinstall the transfer roller When you reinstall the transfer roller, make sure that the pins on the shaft collars (callout 1) align with the holes in the mounting assembly.
Secondary transfer assembly The secondary transfer assembly includes the transfer roller. 1. Open the right-door assembly. 2. Use the blue lever (callout 1) to lower the secondary transfer assembly. Figure 6-31 Remove the transfer roller (2 of 3) 1 3. Push the pin on the release-lever side of the assembly toward the inside of the product to release it, and then lift the assembly up.
4. Pull the assembly straight out of the product to remove it. Figure 6-33 Remove the secondary transfer assembly (2 of 2) Reinstall the secondary transfer assembly Press and hold down the blue release lever when you reinstall the assembly.
Intermediate transfer belt (ITB) CAUTION: Do not touch the black-plastic belt. Skin oils and fingerprints on the belt can cause printquality problems. Always place the ITB on a flat surface in a safe and protected location. 1. Open the right-door assembly. 2. Use the blue lever (callout 1) to lower the secondary transfer assembly. Figure 6-35 Remove the intermediate transfer belt (1 of 3) 1 3.
4. Grasp the large handles on the ITB and then pull the ITB straight out of the product to remove it. CAUTION: The ITB is a sensitive component. Be careful when handling the ITB so that it is not damaged. Always place the ITB in a safe and protected location. Figure 6-37 Remove the intermediate transfer belt (3 of 3) Reinstallation tip If you are installing a replacement ITB, make sure that you remove all of the packing tape (callout 1) and the protective cover sheet (callout 2).
Right door (optional paper feeder) 1. Open the right door. Figure 6-38 Remove the right door; optional paper feeder (1 of 3) 2. Release one tab (callout 1), and then slide the stopper toward the right side of the product to remove it.
3. Support the door, and then release the door-retainer arm at the bottom of the door. Raise the door to release the lower hinge pin, and then remove the door.
External panels, covers, and doors Identification and location Figure 6-41 External panels, covers, and doors; identification and location 2 1 3 11 4 10 9 5 8 6 7 Item Description Item Description 1 Front-top cover (see Front-top cover on page 208) 7 Rear cover (see Rear cover and upper-rear cover on page 209) 2 Rear-top cover (see Rear-top cover on page 211) 8 Upper-rear cover (see Rear cover and upper-rear cover on page 209) 3 Rear-right cover (see Right-rear cover on page 198) 9 T
Front-door assembly 1. Open the front door. Figure 6-42 Remove the front-door assembly (1 of 2) 2. Remove two screws (callout 1), and then remove the front-door assembly. NOTE: A small sheet-metal bracket on the left side of the door is not captive. Do not lose the bracket when you remove the screw.
Right-door assembly 1. Open the right-door assembly Figure 6-44 Remove the right-door assembly (1 of 8) 2. Close the secondary transfer assembly.
3. Remove three screws (callout 1). Figure 6-46 Remove the right-door assembly (3 of 8) 1 4. Carefully release one link arm.
5. Remove one screw (callout 2), and then remove the cover (callout 3). Figure 6-48 Remove the right-door assembly (5 of 8) 3 2 6. Disconnect two connectors (callout 4), and then release the wire harness from the guide (callout 5). TIP: It is easier to disconnect the lower connector if you first remove the wire harnesses from the guide.
7. Remove two screws (callout 6). Figure 6-50 Remove the right-door assembly (7 of 8) 6 8. Remove the right-door assembly.
Right-rear cover 1. Open the right-door assembly. Figure 6-52 Remove the right-rear cover (1 of 3) 2. Remove two screws (callout 1) and release one tab (callout 2).
3. Rotate the bottom of the cover away from the product, and then remove the cover.
Left cover 1. Remove four screws (callout 1). Figure 6-55 Remove the left cover (1 of 5) 1 2. Release the rear edge of the cover, and slightly separate the cover from the product.
3. The figure below shows the cover removed so that you can see the tab locations. Before proceeding, note the location of the mounting tabs. CAUTION: One tab (callout 2) is easily damaged when removing the cover. Be careful when removing the cover. Figure 6-57 Remove the left cover (3 of 5) 2 4. Use your thumb to press in on the lower-front portion of the cover (near the dashed circle in the figure below), and then slightly slide the cover away from the front door to release one tab.
5. Slide the cover toward the rear of the product and rotate it away from the product and then remove the cover.
Control-panel assembly 1. Open the front door and the right door. 2. Remove one screw (callout 1). Figure 6-60 Remove the control-panel assembly (1 of 4) 1 3. Remove one screw (callout 2).
4. Lift the control-panel assembly up, and then rotate the top of the assembly away from the product. CAUTION: The control-panel assembly is attached to the product by the wire-harness connector. Figure 6-62 Remove the control-panel assembly (3 of 4) 5. Disconnect one connector (callout 3), and then remove the control-panel assembly.
Right-front cover Before proceeding, remove the following components: ● Control-panel assembly. See Control-panel assembly on page 203. Remove the right-front cover NOTE: Be careful. When removing the cover, do not dislodge the power button. If the button is dislodged, see Reinstall the power button on page 207 to reinstall it. 1. Remove one screw (callout 1). Figure 6-64 Remove the right-front cover (1 of 5) 1 2. Remove two screws (callout 2).
3. Before you proceed, take note of the tab locations at the bottom of the cover. Figure 6-66 Remove the right-front cover (3 of 5) 4. Pull down on the cover to release three tabs (callout 3). TIP: It might be easier if you position the product at the edge of the work surface so that there is a space for the cover to slide downward.
5. Rotate the bottom of the cover away from the product, and then pull down on the cover to remove it. Figure 6-68 Remove the right-front cover (5 of 5) Reinstall the power button Snap the power button into the holders on the cover. Make sure that the spring is correctly installed.
Front-top cover Before proceeding, remove the following components: ● Left cover. See Left cover on page 200. ● Control-panel assembly. See Control-panel assembly on page 203. Remove the front-top cover 1. Remove one screw (callout 1). Figure 6-70 Remove the front-top cover (1 of 2) 1 2. Slide the cover toward the left side of the product to release it, and then remove the cover.
Rear cover and upper-rear cover Before proceeding, remove the following components: ● Right-rear cover. See Right-rear cover on page 198. ● Left cover. See Left cover on page 200. Remove the rear cover and upper-rear cover 1. Remove eight screws (callout 1). Figure 6-72 Remove the rear cover and upper-rear cover (1 of 4) 1 2. Slide the cover toward the fan side of the product to remove it.
3. Slide the upper-rear cover toward the left to release it, and then separate the upper-rear cover from the rear cover.
Rear-top cover Before proceeding, remove the following components: ● Left cover. See Left cover on page 200. ● Control-panel assembly. See Control-panel assembly on page 203. ● Front-top cover. See Front-top cover on page 208. ● Rear cover and rear-upper cover. See Rear cover and upper-rear cover on page 209. Remove the rear-top cover 1. Remove two screws (callout 1).
2. Slide the cover toward the left side of the product to release it, and then remove the cover.
Internal assemblies TIP: For clarity, some photos in this chapter show components removed that would not be removed to service the product. If necessary, remove the components listed at the beginning of a procedure before proceeding to service the product. Pickup roller (Tray 1) CAUTION: Do not touch the spongy roller surface unless you are replacing the roller. Skin oils on the roller can cause paper pickup problems. 1.
2. Release two tabs and rotate the roller body away from the product to remove it. TIP: It might be easier to release the Tray 1 pickup-roller solenoid plate, and then manually rotate the roller into the correct position to remove the roller.
Delivery fan, cartridge fan, and environmental sensor Before proceeding, remove the following components: ● Left cover. See Left cover on page 200. Remove the delivery fan, cartridge fan, and environmental sensor 1. Remove five screws (callout 1), and then remove the sheet-metal plate (callout 2). Figure 6-80 Remove the delivery fan, cartridge fan, and environmental sensor (1 of 9) 2 1 2. Disconnect five connectors (callout 3). NOTE: Disconnect the larger connector on the right side from the bottom.
3. Release two tabs (callout 4), and then slide the delivery-fan and cartridge-fan assembly toward the power-supply side of the product to release it. Figure 6-82 Remove the delivery fan, cartridge fan, and environmental sensor (3 of 9) 4 4. Pull the assembly slightly out of the product, disconnect two connectors (callout 5), and then to remove the assembly.
5. Remove one screw (callout 6), and then remove the cover (callout 7). Figure 6-84 Remove the delivery fan, cartridge fan, and environmental sensor (5 of 9) 7 6. 6 Disconnect two connectors (callout 8), and then remove the fans (callout 9).
7. Remove the antistatic foam (callout 10). Figure 6-86 Remove the delivery fan, cartridge fan, and environmental sensor (7 of 9) 10 8. Release one tab (callout 11).
9. Disconnect one connector (callout 12), and then remove the environmental sensor. CAUTION: ESD-sensitive part.
Toner-collection sensor Before proceeding, remove the following components: ● Toner-collection unit. See Toner-collection unit on page 173. ● Left cover. See Left cover on page 200. Remove the toner-collection sensor 1. Remove five screws (callout 1), and then remove the sheet-metal plate (callout 2). Figure 6-89 Remove the toner-collection sensor (1 of 4) 2 1 2. Disconnect one connector (callout 3).
3. Remove one screw (callout 4). Reinstallation tip When you reinstall the sensor, make sure that the tab (callout 5) on the sensor body completely engages the slot in the product chassis. Figure 6-91 Remove the toner-collection sensor (3 of 4) 4 4. 5 Remove the toner-collection sensor.
Residual-toner-feed motor Before proceeding, remove the following components: ● Toner-collection unit. See Toner-collection unit on page 173. ● Intermediate transfer belt (ITB). See Intermediate transfer belt (ITB) on page 188. ● Left cover. See Left cover on page 200. Remove the residual-toner-feed motor NOTE: Be careful. Do not dislodge the residual-toner collection door when you remove the assembly.
2. Remove the cover. Figure 6-94 Remove the residual-toner-feed motor (2 of 7) 3. Disconnect one connector (callout 3).
4. Support the assembly, and then remove two screws (callout 4). Figure 6-96 Remove the residual-toner-feed motor (4 of 7) 4 5. Be careful. Do not dislodge the residual-toner collection door when you remove the assembly. If the door becomes dislodged, see Reinstall the residual-toner collection door on page 226 to reinstall it.
6. Push the assembly into the product to release it. Figure 6-98 Remove the residual-toner-feed motor (6 of 7) 7. Remove the motor.
Reinstall the residual-toner collection door Snap the residual-toner collection door into the holders on the assembly. Make sure that the spring is correctly installed.
Registration density (RD) sensor assembly Before proceeding, remove the following components: ● Secondary transfer assembly. See Secondary transfer assembly on page 186. ● Intermediate transfer belt (ITB). See Intermediate transfer belt (ITB) on page 188. Remove the RD sensor assembly 1. Remove two screws (callout 1). Figure 6-101 Remove the RD sensor assembly (1 of 6) 1 2. Slide the shutter toward the right side of the product. Keep the shutter in this position for the following step.
3. Carefully separate the assembly from the product. The assembly wire harnesses are still attached to the product. CAUTION: Do not damage the shutter as it passes through the chassis. Figure 6-103 Remove the RD sensor assembly (3 of 6) 4. Disconnect two connectors (callout 2) on the back side of the assembly.
5. Push in on the locking tab to release the retainer (callout 3), and then separate the retainer from the assembly. NOTE: The retainer remains attached to the wire harness, and disengages from the assembly. Figure 6-105 Remove the RD sensor assembly (5 of 6) 3 6. Remove the assembly.
Power-supply fan and fan duct Before proceeding, remove the following components: ● Right-rear cover. See Right-rear cover on page 198. ● Left cover. See Left cover on page 200. ● Rear cover and upper-rear cover. See Rear cover and upper-rear cover on page 209. NOTE: It is not necessary to separate the upper-rear cover from the rear cover to remove the power-supply fan. Remove the power-supply fan and fan duct 1.
2. To remove the fan only: Release two tabs (callout 3), and then remove the fan from the fan duct. Reinstallation tip When the fan is reinstalled, the air must flow into the product. Look at the arrows embossed on the fan frame that indicate air flow direction. Figure 6-108 Remove the power-supply fan (2 of 4) 3 3. To remove the fan and fan duct: Remove one screw (callout 4), and then release the wire harnesses from the guides on the fan duct.
4. To remove the fan and fan duct: Release one tab (callout 5), and then remove the fan and fan duct (callout 6).
Registration assembly Before proceeding, remove the following components: ● Secondary transfer assembly. See Secondary transfer assembly on page 186. ● Intermediate transfer belt (ITB). See Intermediate transfer belt (ITB) on page 188. ● Right-rear cover. See Right-rear cover on page 198. ● Left cover. See Left cover on page 200. ● Rear cover and upper-rear cover. See Rear cover and upper-rear cover on page 209.
2. Pull down on the cover to release one tab, and then rotate the cover away from the product to remove it. Figure 6-112 Remove the registration assembly (2 of 8) 3. Release two green latches (callout 2), and then lower the feed guide. Reinstallation tip Make sure that the feed guide snaps into the closed position when you reinstall the registration assembly.
4. Remove three screws (callout 3). Figure 6-114 Remove the registration assembly (4 of 8) 3 5. Separate the assembly from the product, release one tab (callout 4), and then remove the cover (callout 5). CAUTION: The assembly is still attached to the product by the wire harnesses.
6. Disconnect one connector (callout 6), and then release the wire harness from the retainer. Figure 6-116 Remove the registration assembly (6 of 8) 6 7. Disconnect three connectors (callout 7) on the back side of the assembly, and then release the wires from the retainers.
8. Remove the assembly. Reinstallation tip When you reinstall the registration assembly, make sure that it is correctly positioned in the product. The tabs on the assembly must fit into the slots in the product chassis and the assembly should fit securely up against the product chassis.
Interconnect board (ICB) Before proceeding, remove the following components: ● Formatter. See Formatter PCA on page 175. ● Right-rear cover. See Right-rear cover on page 198. ● Left cover. See Left cover on page 200. ● Rear cover and upper-rear cover. See Rear cover and upper-rear cover on page 209. NOTE: It is not necessary to separate the upper-rear cover from the rear cover to remove the interconnect board (ICB).
2. Carefully rotate and slide the ICB up and away from the chassis, and then disconnect two connectors (callout 3). Figure 6-120 Remove the ICB (2 of 3) 3 3. Remove the ICB.
DC controller PCA and tray Before proceeding, remove the following components: ● Formatter. See Formatter PCA on page 175. ● Right-rear cover. See Right-rear cover on page 198. ● Left cover. See Left cover on page 200. ● Rear cover and upper-rear cover. See Rear cover and upper-rear cover on page 209. NOTE: It is not necessary to separate the upper-rear cover from the rear cover to remove the DC controller PCA. ● Interconnect board (ICB). See Interconnect board (ICB) on page 238.
2. Disconnect all the connectors. Reinstallation tip The connector locations J124, J133, and J134 are not used. Figure 6-123 Remove the DC controller PCA and tray (2 of 4) 3. Remove four screws (callout 3), and then remove the DC controller PCA. Figure 6-124 Remove the DC controller PCA and tray (3 of 4) 3 NOTE: If removing the DC controller to access another component, skip this step and leave the DC controller attached to the sheet-metal tray.
4. If necessary, remove four screws (callout 4), remove the wire guide (callout 5), and then remove the sheet-metal tray.
Low-voltage power supply Before proceeding, remove the following components: ● Formatter. See Formatter PCA on page 175. ● Right-rear cover. See Right-rear cover on page 198. ● Left cover. See Left cover on page 200. ● Rear cover and upper-rear cover. See Rear cover and upper-rear cover on page 209. NOTE: It is not necessary to separate the upper-rear cover from the rear cover to remove the low-voltage power supply. ● Interconnect board (ICB). See Interconnect board (ICB) on page 238.
2. Push in on the locking tab to release the retainer (callout 2), and then separate the retainer from the assembly. NOTE: The retainer remains attached to the wire harness, and disengages from the assembly. Figure 6-127 Remove the low-voltage power supply (2 of 8) 2 3. Remove three screws (callout 3), and then remove the handle (callout 4).
4. Remove five screws (callout 5). NOTE: The illustration below shows the ICB removed. Figure 6-129 Remove the low-voltage power supply (4 of 8) 5 5. Remove three screws (callout 6).
6. Rotate the formatter cage away from the top of the product. Figure 6-131 Remove the low-voltage power supply (6 of 8) 7. Remove the assembly.
8. Remove four screws (callout 7), and then separate the formatter cage from the low-voltage power supply. NOTE: If you are removing the power supply for internal product access, you can leave the formatter cage installed on the power supply chassis.
High-voltage power supply lower (HVPS-D) Before proceeding, remove the following components: ● Formatter. See Formatter PCA on page 175. ● Right-rear cover. See Right-rear cover on page 198. ● Left cover. See Left cover on page 200. ● Rear cover and upper-rear cover. See Rear cover and upper-rear cover on page 209. NOTE: It is not necessary to separate the upper-rear cover from the rear cover to remove the high-voltage power supply lower. ● Interconnect board (ICB).
2. Use a small flat blade screwdriver to carefully remove three locking clips (callout 3). CAUTION: Do not damage the PCA with the screwdriver. Figure 6-135 Remove the high-voltage power supply lower (2 of 4) 3 3. Disconnect one connector (callout 4; J114), and then release five clips (callout 5). NOTE: To locate DC controller connector locations, see DC controller connector locations on page 167.
4. Rotate the top of the power supply away from the chassis, and then disconnect one connector (callout 6). Remove the power supply Figure 6-137 Remove the high-voltage power supply lower (4 of 4) 6 Reinstall the high-voltage power supply lower When you reinstall the power supply, look through the holes in the PCA and make sure that the highvoltage contact springs are correctly seated against the PCA.
Developing-disengagement motor Before proceeding, remove the following components: ● Formatter. See Formatter PCA on page 175. ● Right-rear cover. See Right-rear cover on page 198. ● Left cover. See Left cover on page 200. ● Rear cover and upper-rear cover. See Rear cover and upper-rear cover on page 209. NOTE: It is not necessary to separate the upper-rear cover from the rear cover to remove the developing-disengagement motor. ● Interconnect board (ICB). See Interconnect board (ICB) on page 238.
2. Remove the motor.
Pickup motor Before proceeding, remove the following components: ● Formatter. See Formatter PCA on page 175. ● Right-rear cover. See Right-rear cover on page 198. ● Left cover. See Left cover on page 200. ● Rear cover and upper-rear cover. See Rear cover and upper-rear cover on page 209. NOTE: It is not necessary to separate the upper-rear cover from the rear cover to remove the pickup motor. ● Interconnect board (ICB). See Interconnect board (ICB) on page 238.
Lifter-drive assembly Before proceeding, remove the following components: ● Formatter. See Formatter PCA on page 175. ● Right-rear cover. See Right-rear cover on page 198. ● Left cover. See Left cover on page 200. ● Rear cover and upper-rear cover. See Rear cover and upper-rear cover on page 209. NOTE: It is not necessary to separate the upper-rear cover from the rear cover to remove the lifter drive assembly. ● Interconnect board (ICB). See Interconnect board (ICB) on page 238.
2. Remove five screws (callout 2), and then remove the assembly.
Cassette-pickup drive assembly Before proceeding, remove the following components: ● Formatter. See Formatter PCA on page 175. ● Right-rear cover. See Right-rear cover on page 198. ● Left cover. See Left cover on page 200. ● Rear cover and upper-rear cover. See Rear cover and upper-rear cover on page 209. NOTE: It is not necessary to separate the upper-rear cover from the rear cover to remove the cassette-pickup drive assembly. ● Interconnect board (ICB). See Interconnect board (ICB) on page 238.
2. Disconnect six connectors (callout 3; J106, J107, J108, J137, J138, J140). NOTE: To locate DC controller connector locations, see DC controller connector locations on page 167. Figure 6-145 Remove the cassette-pickup drive assembly (2 of 10) 33 3. Disconnect one connector (callout 4; J119), remove one screw (callout 5), and then release the wire harness from the guides. NOTE: To locate DC controller connector locations, see DC controller connector locations on page 167.
4. Release one tab (callout 6), and then remove the fan and fan duct (callout 7). Figure 6-147 Remove the cassette-pickup drive assembly (4 of 10) 7 6 5. Disconnect five connectors (callout 8; J110, J111 on the DC controller PCA), release the FFCs from the guide (callout 9), and then release the wire harnesses from the guides. NOTE: To locate DC controller connector locations, see DC controller connector locations on page 167.
6. Release one tab (callout 10), and then remove the guide. Figure 6-149 Remove the cassette-pickup drive assembly (6 of 10) 10 7. Release one tab (callout 11), and then remove the guide.
8. Remove two screws (callout 12), and then remove the high-voltage bracket (callout 13). Figure 6-151 Remove the cassette-pickup drive assembly (8 of 10) 12 13 9. Remove three screws (callout 14).
10. Carefully remove the assembly. CAUTION: The gears, arm, and spring on the assembly are not captive. Use your finger to secure the arm and spring as you remove the assembly. If the gears, arm, or spring become dislodged, see Reinstall the cassette-pickup drive assembly on page 261. Figure 6-153 Remove the cassette-pickup drive assembly (10 of 10) Reinstall the cassette-pickup drive assembly 1. Make sure that the spring-loaded gear (callout 1) is correctly installed.
2. Make sure that the spring (callout 2) is correctly installed. Figure 6-155 Reinstall the cassette-pickup drive assembly (2 of 3) 2 3. Make sure that the gears, arm, and spring are correctly installed.
Cassette-pickup assembly Before proceeding, remove the following components: ● Formatter. See Formatter PCA on page 175. ● Right-rear cover. See Right-rear cover on page 198. ● Left cover. See Left cover on page 200. ● Rear cover and upper-rear cover. See Rear cover and upper-rear cover on page 209. NOTE: It is not necessary to separate the upper-rear cover from the rear cover to remove the cassette-pickup assembly. ● Registration assembly. See Registration assembly on page 233.
2. Remove two screws (callout 3). Figure 6-158 Remove the cassette-pickup assembly (2 of 3) 3 3. Remove the assembly.
Laser/scanner assembly (Y/M) Before proceeding, remove the following components: ● Toner collection unit. See Toner-collection unit on page 173. ● Formatter. See Formatter PCA on page 175. ● Right-rear cover. See Right-rear cover on page 198. ● Left cover. See Left cover on page 200. ● Rear cover and upper-rear cover. See Rear cover and upper-rear cover on page 209. NOTE: It is not necessary to separate the upper-rear cover from the rear cover to remove the laser/scanner assembly (Y/M).
2. Disconnect in-line one connector (callout 3), and then release the wire harnesses from the guide (callout 4). Figure 6-161 Remove the laser/scanner assembly (Y/M) (2 of 12) 4 3 3. Release one tab (callout 5), and then remove the guide (callout 6).
4. Remove one screw (callout 7), and then remove the cover (callout 8). Figure 6-163 Remove the laser/scanner assembly (Y/M) (4 of 12) 8 7 5. Disconnect one FFC (callout 9), and then release one spring (callout 10). CAUTION: The spring is not captive. Do not lose the spring when it is removed. Use a pair of needle-nose pliers to safely retain the spring when it is removed. Do not use a flat blade screwdriver to remove the spring; the spring could forcibly leave the product and strike you.
6. Disconnect six connectors (callout 11). NOTE: Disconnect the larger connector on the right side from the bottom. Disconnect the two smaller connectors on the right side from the top. Figure 6-165 Remove the laser/scanner assembly (Y/M) (6 of 12) 11 7. Release two tabs (callout 12), and then slide the fan assembly toward the power-supply side of the product to release it.
8. Pull the fan assembly slightly out of the product, disconnect two connectors (callout 13), and then remove the assembly. Figure 6-167 Remove the laser/scanner assembly (Y/M) (8 of 12) 13 9. Remove one screw (callout 14), and then release one spring (callout 15). CAUTION: The spring is not captive. Do not lose the spring when it is removed. Use a pair of needle-nose pliers to safely retain the spring when it is removed.
10. Remove the toner collection sensor. Figure 6-169 Remove the laser/scanner assembly (Y/M) (10 of 12) 11. Rotate the front of the laser/scanner assembly down (callout 1), and then slide it toward the right (callout 2). Lower the left corner, and then rotate the left corner out of the product (callout 3).
12. Pull the laser/scanner assembly straight out of the product to remove it.
Laser/scanner assembly (C/Bk) Before proceeding, remove the following components: ● Toner collection unit. See Toner-collection unit on page 173. ● Formatter. See Formatter PCA on page 175. ● Right-rear cover. See Right-rear cover on page 198. ● Left cover. See Left cover on page 200. ● Rear cover and upper-rear cover. See Rear cover and upper-rear cover on page 209. NOTE: It is not necessary to separate the upper-rear cover from the rear cover to remove the laser/scanner assembly (C/Bk).
Remove the laser/scanner assembly (C/Bk) 1. Release one spring (callout 1), and then disconnect one connector (callout 2). CAUTION: The spring is not captive. Do not lose the spring when it is removed. Use a pair of needle-nose pliers to safely retain the spring when it is removed. Do not use a flat blade screwdriver to remove the spring; the spring could forcibly leave the product and strike you.
3. Remove two screws (callout 4) located below the front door. Figure 6-174 Remove the laser/scanner assembly (C/Bk) (3 of 7) 4 4. Open the front door, and then remove one screw (callout 5) and the cover (callout 6).
5. Remove two screws (callout 7). Use your finger to release the locking tab (callout 8), and then remove the cover. CAUTION: Be careful. The PGC actuators are easily dislodged when the cover is removed. See Figure 6-179 Reinstall the PGC actuators (1 of 5) on page 276. To reinstall the actuators, see Reinstall the protective glass cleaner (PGC) actuators on page 276. Figure 6-176 Remove the laser/scanner assembly (C/Bk) (5 of 7) 8 7 6. Release one spring (callout 9). CAUTION: The spring is not captive.
7. Rotate the corner of the assembly away from the product until you can see the PCA, and then remove the assembly from the product. Reinstallation tip When the laser/scanner is properly positioned in the chassis, the plastic parts which protrude at the front and rear of the product will be firmly seated against the locator tabs on the chassis. Verify that the assembly is correctly seated, and then install the spring.
2. Remove the actuator and spring from the product. Install the spring on the actuator. Figure 6-180 Reinstall the PGC actuators (2 of 5) 3. Before proceeding, take note of the following: ● Callout 1: The pin on the actuator will be installed into the slot in the chassis. ● Callout 2: The pin on the pivot arm will be installed into the slot on the actuator. ● Callout 3: The end of the spring will be installed onto the tab on the chassis.
4. Place the end of the actuator into the PGC rod, and then use a small flat blade screw driver to fasten the end of the spring on the tab on the chassis. Figure 6-182 Reinstall the PGC actuators (4 of 5) 5. Push down on the actuator to seat it into place. Verify that the actuators is correctly installed. The PGC actuator should freely move when you push in on the actuator.
High-voltage power supply upper (HVPS-T) Before proceeding, remove the following components: ● Formatter. See Formatter PCA on page 175. ● Right-rear cover. See Right-rear cover on page 198. ● Left cover. See Left cover on page 200. ● Rear cover and upper-rear cover. See Rear cover and upper-rear cover on page 209. NOTE: It is not necessary to separate the upper-rear cover from the rear cover to remove the high-voltage power supply upper. ● Interconnect board (ICB).
2. Remove three screws (callout 2), and then rotate the sheet-metal plate away from the power supply. NOTE: You do not need to completely remove the sheet-metal plate to access the power supply. Figure 6-185 Remove the high-voltage power supply upper (2 of 5) 2 3. Duplex models only: Disconnect one connector (callout 3).
4. Remove three screws (callout 4). Figure 6-187 Remove the high-voltage power supply upper (4 of 5) 4 5. Release four tabs (callout 5), and then remove the power supply.
Reinstall the high-voltage power supply upper When you reinstall the power supply, look through the holes in the PCA and make sure that the highvoltage contact springs are correctly seated against the PCA. NOTE: For a replacement power supply, remove one wire harness (callout 1) and then install it on the replacement power supply.
Drum motor 1 Before proceeding, remove the following components: ● Right-rear cover. See Right-rear cover on page 198. ● Left cover. See Left cover on page 200. ● Rear cover and upper-rear cover. See Rear cover and upper-rear cover on page 209. NOTE: It is not necessary to separate the upper-rear cover from the rear cover to remove drum motor 1. ● Interconnect board (ICB). See Interconnect board (ICB) on page 238.
Drum motor 2 or drum motor 3 Before proceeding, remove the following components: ● Right-rear cover. See Right-rear cover on page 198. ● Left cover. See Left cover on page 200. ● Rear cover and upper-rear cover. See Rear cover and upper-rear cover on page 209. NOTE: It is not necessary to separate the upper-rear cover from the rear cover to remove drum motor 2 or drum motor 3. ● Interconnect board (ICB). See Interconnect board (ICB) on page 238.
Fuser motor Before proceeding, remove the following components: ● Formatter. See Formatter PCA on page 175. ● Right-rear cover. See Right-rear cover on page 198. ● Left cover. See Left cover on page 200. ● Rear cover and upper-rear cover. See Rear cover and upper-rear cover on page 209. NOTE: It is not necessary to separate the upper-rear cover from the rear cover to remove the fuser motor. ● Interconnect board (ICB). See Interconnect board (ICB) on page 238.
Remove the fuser motor Disconnect one connector (callout 1), remove three screws (callout 2), and then remove the motor.
Main-drive assembly Before proceeding, remove the following components: ● Print cartridges. See Print cartridges on page 170. ● Formatter. See Formatter PCA on page 175. ● Secondary transfer assembly. See Secondary transfer assembly on page 186. ● Intermediate transfer belt (ITB). See Intermediate transfer belt (ITB) on page 188. ● Right-rear cover. See Right-rear cover on page 198. ● Left cover. See Left cover on page 200. ● Rear cover and upper-rear cover.
Remove the main-drive assembly 1. Remove two screws (callout 1), and then remove the cover (callout 2). Figure 6-193 Remove the main-drive assembly (1 of 7) 1 2 2. Release the wire harnesses from the guide (callout 3), and then remove one screw (callout 4).
3. Lift the high-voltage bracket up to release it, and then remove the bracket. Figure 6-195 Remove the main-drive assembly (3 of 7) 4. Disconnect seven connectors (callout 5), and then release the wire harnesses from the guides.
5. Remove two screws (callout 6), and then remove the sheet-metal plates (callout 7). Figure 6-197 Remove the main-drive assembly (5 of 7) 7 6. 6 Release the FFCs and lower wiring harness from the guide, and then release one tab (callout 8) and remove the guide.
7. Remove ten screws (callout 9), and then carefully remove the assembly. CAUTION: Be careful when you remove the assembly. The cams on the backside of the assembly can be dislodged. If the cams become dislodged, install them on the shafts as shown in Figure 6-201 Reinstall the main-drive assembly (2 of 11) on page 292. The black cam must be installed on the shaft furthest away from the developing-disengagement motor. The white cams are interchangeable.
Reinstall the main-drive assembly 1. Remove the bracket (callout 1), two guides (callout 2), and the developing-disengagement motor (callout 3). Install the bracket and guides on the replacement main-drive assembly. NOTE: Do not install the developing-disengagement motor on the assembly (this motor must be removed from the assembly to align the main-drive cams). Figure 6-200 Reinstall the main-drive assembly (1 of 11) 1 3 2 2. Locate the cams (callout 4) on the back side of the assembly.
3. Slowly rotate the shaft near the black cam. WARNING! Do not touch the plastic gears or cams. You must not wipe away any of the grease that is applied to these components. Always rotate the gears and cams by rotating the metal drive shaft. Figure 6-202 Reinstall the main-drive assembly (3 of 11) 4. Continue to rotate the shaft until the holes in the black-cam gear align as shown below. When correctly aligned, the bottom-most hole in the gear is aligned with a hole in the sheet-metal chassis.
5. Verify that the cams (callout 5) align correctly. TIP: The second cam in from the right (the white cam to the left of the black cam), should have the second hole aligned with the hole in the sheet-metal chassis. The third cam in from the right, should have the third hole aligned with the hole in the sheet-metal chassis. The fourth cam in from the right (the cam nearest the developing-disengagement motor), should have the fourth hole aligned with the hole in the sheet-metal chassis.
7. When the assembly is placed on the chassis, the pin on the swing gear and on the bracket (callout 6), must align with the holes in the chassis (callout 7). Figure 6-206 Reinstall the main-drive assembly (7 of 11) 7 6 8. Position the assembly on the chassis.
9. Use your finger to push in on the assembly, and use a small flat blade screwdriver to align the pin on the swing gear with the hole in the chassis. Figure 6-208 Reinstall the main-drive assembly (9 of 11) 10. When the assembly is correctly installed against the chassis, the pin above the swing gear protrudes through the hole in the chassis.
11. Install the main-drive assembly mounting screws, and then reinstall the developing-disengagement motor (callout 8). TIP: After reassembling the product, use the DIAGNOSTICS menu to print a COLOR BAND TEST page. If the test page shows one or more color planes are not printing (usually in the upper left corner of the page), the cam or cams for the missing color plane are not correctly aligned. Repeat the reinstall the main-drive assembly procedure.
Fuser-drive assembly Before proceeding, remove the following components: ● Formatter. See Formatter PCA on page 175. ● Fuser. See Fuser on page 179. ● Secondary transfer assembly. See Secondary transfer assembly on page 186. ● Right-rear cover. See Right-rear cover on page 198. ● Left cover. See Left cover on page 200. ● Control-panel assembly. See Control-panel assembly on page 203 ● Rear cover and upper-rear cover. See Rear cover and upper-rear cover on page 209.
Remove the fuser-drive assembly 1. Disconnect one connector (callout 1), and then release the wire harnesses from the guide (callout 2). Figure 6-211 Remove the fuser-drive assembly (1 of 6) 2 1 2. Remove two screws (callout 3), and then remove the guide (callout 4).
3. Remove one screw (callout 5), and then remove the sheet-metal plate (callout 6). Figure 6-213 Remove the fuser-drive assembly (3 of 6) 6 5 4. Remove one screw (callout 7), and then remove the cover (callout 8).
5. Remove five screws (callout 9). Figure 6-215 Remove the fuser-drive assembly (5 of 6) 9 6. Carefully remove the assembly. CAUTION: A gear on the assembly is not captive. Do not lose the gear when you remove the assembly. If the gear becomes dislodged, see Reinstall the fuser-drive assembly on page 302.
Reinstall the fuser-drive assembly If the gear (callout 1) is dislodged when the assembly is removed, use the figure below to correctly install it on the assembly.
Delivery assembly Before proceeding, remove the following components: ● Fuser. See Fuser on page 179. ● Secondary transfer assembly. See Secondary transfer assembly on page 186. ● Intermediate transfer belt (ITB). See Intermediate transfer belt (ITB) on page 188. ● Right-rear cover. See Right-rear cover on page 198. ● Left cover. See Left cover on page 200. ● Control-panel assembly. See Control-panel assembly on page 203 ● Rear cover and upper-rear cover.
Remove the delivery assembly 1. Remove two screws (callout 1), and then remove the guide (callout 2). Figure 6-218 Remove the delivery assembly (1 of 5) 2 1 2. Remove two screws (callout 3).
3. Release one tab (callout 4), and then remove the gear (callout 5). Figure 6-220 Remove the delivery assembly (3 of 5) 5 4 4. Release one tab (callout 6), and then rotate the locking clip until the tab on the clip aligns with the slot in the chassis.
5. Disconnect one connector (callout 7), remove two screws (callout 8), and then carefully lift the assembly (callout 9) off of the product to remove it. CAUTION: A solenoid arm (duplex models only; on the right side) and a spring (on the left side) on the assembly are not captive. Do not lose the solenoid arm or spring when you remove the assembly. If the solenoid arm or spring become dislodged, see Reinstall the delivery assembly on page 307.
Reinstall the delivery assembly 1. Duplex models only: Make sure that the solenoid arm is correctly installed on the assembly. Figure 6-223 Reinstall the delivery assembly (1 of 2) 2. Make sure that the spring is correctly installed on the assembly.
Duplex-drive assembly Before proceeding, remove the following components: ● Fuser. See Fuser on page 179. ● Secondary transfer assembly. See Secondary transfer assembly on page 186. ● Intermediate transfer belt (ITB). See Intermediate transfer belt (ITB) on page 188. ● Right-rear cover. See Right-rear cover on page 198. ● Left cover. See Left cover on page 200. ● Control-panel assembly. See Control-panel assembly on page 203 ● Rear cover and upper-rear cover.
Remove the duplex-drive assembly 1. Disconnect two connectors (callout 1), and then remove three screws (callout 2). Figure 6-225 Remove the duplex-drive assembly (1 of 2) 2 1 2. Remove the assembly.
Optional paper feeder assembly (Tray 3) NOTE: For information about removing the Tray 3 pickup roller, see Pickup and feed rollers (Tray 3) on page 182. For information about removing the Tray 3 cassette, see Tray cassette on page 178. For information about removing the right door (optional paper feeder), see Right door (optional paper feeder) on page 190 Drawer connector 1. With a small screwdriver, lift one tab and then slide the drawer connector to release. 2. Remove one connector (callout 1).
7 Solve problems To use the information in this chapter, you should have a basic understanding of the HP LaserJet printing process. Explanations of each mechanical assembly, the printer systems, and the basic theory of operation are contained in Theory of operation on page 103. Do not perform any of these troubleshooting processes unless you understand the function of each product component.
Solve problems checklist If the product is not responding correctly, complete the steps in the following checklist, in order. If the product does not pass a step, follow the corresponding troubleshooting suggestions. If a step resolves the problem, you can stop without performing the other steps on the checklist. 1. Make sure one of the following messages display on the control panel: Ready, PAUSED, or SLEEP MODE ON.
ENWW 8. Verify that you have installed the HP Color LaserJet CP3525 Series printer driver. Check the program to make sure that you are using the HP Color LaserJet CP3525 Series printer driver. 9. Print a short document from a different program that has worked in the past. If this solution works, the problem is with the program that you are using. If this solution does not work (the document does not print) complete these steps: a.
Menu map Print a menu map 1. Press OK to open the menus. 2. Use the arrow buttons to navigate to the INFORMATION submenu, and then press OK. 3. Use the arrow buttons to navigate to the PRINT MENU MAP submenu, and then press OK to print the menu structure. 4. Press X to exit the menus.
Troubleshooting process Determine the problem source When the product malfunctions or encounters an unexpected situation, the product control panel alerts you to the situation. This section contains a pre-troubleshooting checklist to filter out many possible causes of the problem. A troubleshooting flowchart helps you diagnose the root cause of the problem. The remainder of this chapter provides steps for correcting problems.
Table 7-1 Pre-troubleshooting checklist (continued) ● Are the paper guides aligned with the stack? ● Is the paper tray correctly installed in the product? ● Is each print cartridge installed correctly? ● Are original HP print cartridges installed? ● Are the cartridges damaged? ● Are the ITB and fuser correctly installed? ● Is the ITB or fuser damaged? Covers ● Are the right and front doors closed? Condensation ● Does condensation occur following a temperature change (particularly in winte
Table 7-2 Troubleshooting flowchart (continued) 3 Open the DIAGNOSTICS menu and print an event log to see the history of errors with this product. Event log If paper jams inside the product, see Clear paper jams on page 404. Does the event log print? Yes If the event log does not print, see Print an event log on page 395. No If error messages display on the control panel when you try to print an event log, see Control-panel messages table on page 369.
If the formatter is damaged, it might interfere with the engine test. If the engine-test page does not print, try removing the formatter and then performing the engine test again. If the engine test is then successful, the problem is almost certainly with the formatter, the control panel, or the cable that connects them. If the control panel is blank when you turn on the product, check the following items. 1.
Tools for troubleshooting The section describes the tools that can help you solve problems with your device. Individual component diagnostics LED diagnostics LED, engine, and individual diagnostics can identify and troubleshoot product problems. Understand lights on the formatter Three LEDs on the formatter indicate that the product is functioning correctly. 1 2 1 HP Jetdirect LEDs 2 Heartbeat LED HP Jetdirect LEDs The embedded HP Jetdirect print server has two LEDs.
5. Press the down arrow to highlight the LINK SPEED menu, and then press the OK button. 6. Select the appropriate link speed, and then press the OK button. Heartbeat LED The heartbeat LED indicates that the formatter is functioning correctly. While the product is initializing after you turn it on, the LED blinks rapidly, and then turns off. When the product has finished the initialization sequence, the heartbeat LED pulses on and off.
Diagnostics mode Some of the diagnostic tests automatically put the printer into a special diagnostics mode. During the special diagnostics mode the printer can perform actions that would normally cause the printer to enter an error state. Always follow the control panel directions in the DIAGNOSTICS menu to exit the special diagnostics mode correctly and return the printer to a normal state.
2. Locate the slots on the right and front of the product.
3. Insert a folded piece of paper into each slot at the same time until the product is in a Ready state. Figure 7-3 Diagnostic test (3 of 3) Disable cartridge check Use this diagnostic test to print internal pages or send an external job to the product when one or more print cartridges are removed or exchanged. Consumable supply errors are ignored while the product is in this mode.
horizontal lines. The test page can use only Tray 2 as the paper source, so make sure that paper is loaded in Tray 2. Figure 7-4 Engine-test button Paper-path test This diagnostic test generates one or more test pages that you can use to isolate the cause of jams. To isolate a problem, specify which input tray to use, specify whether to use the duplex path, and specify the number of copies to print. Multiple copies can be printed to help isolate intermittent problems.
Manual sensor test (special-mode test) Use this diagnostic test to manually test the product sensors and switches. Each sensor is represented by a letter and number on the control panel display. 1. Press the Menu 2. Press the down arrow to highlight DIAGNOSTICS, and then press the OK button. 3. Press the down arrow to highlight MANUAL SENSOR TEST, and then press the OK button. button. To exit this diagnostic, press the Stop key, and then select EXIT DIAGNOSTICS.
4. Insert a piece of paper to activate the TOP sensor. Figure 7-5 Test the TOP sensor 5. Check the control-panel display for sensor response. 6. If no response, replace the registration assembly. B and C loop sensors 1. Open the right door. 2. Lower the secondary transfer assembly. 3. Slowly insert a piece of paper to activate the B and C loop sensors underneath the fuser.
4. Check the control-panel display for a sensor response. 5. If there is no response, replace fuser. See Fuser on page 179. D fuser (fixing) delivery sensor 1. Open the right door. 2. Lower the secondary transfer assembly. 3. Remove the fuser assembly, and then verify that the sensor flag on the fuser assembly moves freely. If the sensor flag does not move freely, replace the fuser. See Fuser on page 179. Figure 7-7 Test the fuser delivery sensor (1 of 2) 4.
5. Check the control-panel display for a sensor response. 6. If there is no response, replace the fuser (fixing) delivery sensor. E duplex re-pickup sensor 1. Open the right door. 2. Use the green handle to lift the duplex jam cover. 3. Insert a piece of paper to activate the duplex re-pickup sensor (8492). Figure 7-9 Test the duplex re-pickup sensor 4. Check the control-panel display for sensor response. 5. If no response, replace the right door assembly. See Right-door assembly on page 194.
4. Move the output-bin full sensor flag. Figure 7-10 Test the output-bin-full sensor 5. Check the control-panel display for sensor response. 6. If no response, remove the control panel and verify that the flag is moving. If not, replace the delivery assembly. If the sensor is malfunctioning, replace the delivery assembly. See Delivery assembly on page 303. H fuser (fixing) pressure-release sensor 1. Open the right door. 2. Lower the secondary transfer assembly. 3.
4. Insert a piece of paper to activate the fuser (fixing) pressure-release sensor. Figure 7-12 Test the fuser (fixing) pressure-release sensor (2 of 2) 5. Check the control-panel display for sensor response. 6. If there is no response, replace fuser (fixing) pressure-release sensor. I primary transfer-roller disengagement sensor 1. Open the right door. 2. Lower the secondary transfer assembly. 3. Remove the ITB. 4. Rotate the gear (callout 1) to move the flag (callout 2).
5. Remove all print cartridges. NOTE: Cover all removed print cartridges with paper. 6. Locate the sensor behind the cyan OPC drum position. 7. Insert a piece of paper to activate the primary transfer-roller disengagement sensor. Figure 7-14 Test the primary transfer-roller disengagement sensor (2 of 2) ENWW 8. Check the control-panel display for sensor response. 9. If no response, replace the sensor.
K right and front door interlock switches 1. Open the right door (callout 1) to disengage the right-door switch (callout 2). Figure 7-15 Test the right- and front-door interlock switches (1 of 4) 2 1 2. Close the right door and check the control panel on the product for sensor response. 3. Open the front door (callout 3) to disengage the front-door switch (callout 4). Figure 7-16 Test the right- and front-door interlock switches (2 of 4) 4 3 4.
6. Close the right door and front door to verify that the switches close. Figure 7-17 Test the right- and front-door interlock switches (3 of 4) 7. Open the right door and front door to verify that the switches open. Figure 7-18 Test the right- and front-door interlock switches (4 of 4) 8. If the switches do not close, check the connectors on the DC controller PCA. 9. If the switches are opening/closing correctly when either door is open or closed, then check J118 on the DC controller. 10.
Manual sensor test 2 (special-mode test) Use this test to test paper-path sensors and the paper-size switches manually. The following illustrations and table show the locations of these sensors. 1. Press the Menu 2. Press the down arrow to highlight DIAGNOSTICS, and then press the OK button. 3. Press the down arrow to highlight MANUAL SENSOR TEST 2, and then press the OK button. button.
2. Move the Tray 1 media-present sensor flag. Figure 7-19 Test the Tray 1 media-present sensor 3. Check the control-panel display for sensor response. 4. If no response, replace Tray 1. M Tray 2 paper out sensor 1. Remove Tray 2. 2. Move the tray 2 paper-out sensor flag. Figure 7-20 Test the tray 2 paper-out sensor ENWW 3. Check the control-panel display for sensor response. 4. If there is no response, replace the tray 2 paper-out sensor.
N Tray 2 closed sensor 1. Remove Tray 2. NOTE: The Tray 2 closed sensor flag is on the back of Tray 2. Inspect the flag to verify that it is aligned correctly. If it is bent upward, it might miss the sensor when installed. Figure 7-21 Test the Tray 2 closed sensor (1 of 2) 2. Insert a piece of paper in the Tray 2 closed sensor. Figure 7-22 Test the Tray 2 closed sensor (2 of 2) 3. Check the control-panel display for sensor response. 4. If there is no response, replace the lifter-drive assembly.
2. Move the Tray 2 stack-surface sensor flag. Figure 7-23 Test the Tray 2 stack-surface sensor 3. Check the control-panel display for sensor response. 4. If no response, replace the lifter-drive assembly. See Lifter-drive assembly on page 254. P optional Tray 3-empty sensor 1. Remove the optional Tray 3 cassette. 2. Move the optional Tray 3-empty sensor flag. Figure 7-24 Test the optional Tray 3-empty sensor ENWW 3. Check the control-panel display for sensor response. 4.
Q optional Tray 3 media-feed sensor (Q) 1. Open the right door on optional Tray 3. 2. Insert a piece of paper to activate the optional Tray 3 media-feed sensor Figure 7-25 Test the optional Tray 3 media-feed sensor 3. Check the control-panel display for sensor response. 4. If there is no response, replace the optional Tray 3. R optional Tray 3 stack-surface sensor (R) 1. Remove the optional Tray 3 cassette.
2. Push the lever to activate the sensor arms. Figure 7-26 Test the optional Tray 3 stack-surface sensor 3. If there is no response, replace the optional Tray 3. S, T, and U optional Tray 3 media-size sensors 1. Push any of the three buttons to see if the control panel changes for sensors S, T or U. ● S: top button on size switch ● T: middle button on size switch ● U: bottom button on size switch Figure 7-27 Test the optional Tray 3 media-size sensors 2.
Paper-path sensors test This test displays the status of each paper-path sensor and allows viewing of sensor status while printing internal pages. 1. Press the Menu 2. Press the down arrow to highlight DIAGNOSTICS, and then press the OK button. 3. Press the down arrow to highlight PAPER PATH SENSORS, and then press the OK button. 4. Select the paper-path test options for the test you want to run. button. NOTE: Print an internal page to view sensor activity.
a certain position. The test can also be programmed to stop from 0 to 60,000 ms. If the timer is set to a value that is greater than the job-print time, you can recover the product in one of two ways. ● After the print job is completed press Stop to return to the DIAGNOSTICS menu before the timer times out. ● After the timer times out, press Stop. Activate the door switch to restart the engine and return it to a normal state.
Table 7-6 Component test details (continued) Component test Motor or solenoid number Comments MAGENTA LASER SCANNER M9 Activates the yellow/magenta scanner motor for 10 seconds. YELLOW LASER SCANNER M9 Activates the yellow/magenta scanner motor for 10 seconds. FUSER (FIXING) MOTOR M2 Activate the fuser motor at a specified speed for 10 seconds. FUSER (FIXING) PRESSURE RELEASE MOTOR M2 reverse Reverses the fuser motor and pressurizes or depressurizes the pressure release motor.
Diagrams Formatter PCA Figure 7-28 Formatter PCA 1 2 3 Table 7-7 Formatter PCA ENWW Item Description 1 DIMM slot 2 EIO slot 3 Internal USB ports Tools for troubleshooting 343
Location of connectors DC controller PCA Figure 7-29 DC controller PCA J126 Table 7-8 DC controller connectors J100: 24 v from low-voltage power supply (LVPS) and interlock J114: HVPS lower J126: memory tag connector J101: LVPS J115: fuser sensors J127: pre-exposure LEDs (rear), SR17, SL1 J105: interconnect board (ICB) J116: HVPS upper J130: registration density (RD) sensors (front and rear) J106: 500-sheet feeder, developing home position, laser motors J117: fuser motor J131: pickup motor J10
Paper feeder driver PCA Figure 7-30 Paper feeder driver PCA Table 7-9 Paper feeder driver PCA connectors J401: engine connector J402: not used J404: SW1, SW2, lifter motor J405: SR1, SR2, SR3, SR4, SL1 J406: feed motor PCAs, motors, fans, switches, solenoids, and clutches Use the diagrams to locate components.
Base product Figure 7-31 Component locations (1 of 5) 1 346 Chapter 7 Solve problems ENWW
Figure 7-32 Component locations (2 of 5) 4 3 5 2 6 7 8 ENWW Tools for troubleshooting 347
Figure 7-33 Component locations (3 of 5) 9 10 11 12 13 14 348 Chapter 7 Solve problems ENWW
Figure 7-34 Component locations (4 of 5) 15 16 17 18 ENWW Tools for troubleshooting 349
Figure 7-35 Component locations (5 of 5) 19 22 20 21 23 27 24 25 26 Table 7-10 PCAs, motors, fans, switches, solenoids, and clutches Location Connector Component abbreviation Component name 1 J89 M12 Residual toner-feed motor 2 J26 FM2 Cartridge fan 3 J27 FM3 Delivery fan 4 J62 SW3 24V interlock switch 5 J118 SW1, SW2 5V interlock switch 6 J84 SL3 Multipurpose-tray pickup solenoid 7 J780 SW4 Power switch 8 J86 CL1 Duplex re-pick clutch 350 Chapter 7 Solve problems
Table 7-10 PCAs, motors, fans, switches, solenoids, and clutches (continued) Location Component abbreviation Component name 9 ICB Interconnect board (ICB) 10 LVPS Low-voltage power supply 11 HVPS (t) HVPS-T upper 12 DCC DC Controller FM1 Power-supply fan HVPS (d) HVPS-D (lower) 13 Connector J119 14 ENWW 15 J41 M3 Drum motor 1 16 J40 M4 Drum motor 2 17 J42 M5 Drum motor 3 18 J25 M10 Development-disengagement motor 19 J8 SL1 Primary transfer roller disengagement sole
1 x 500 paper feeder Figure 7-36 1 x 500 paper feeder 28 29 30 31 32 33 34 Location Connector 28 Component abbreviation Component name PF PCA Paper-feeder driver PCA 29, 34 J18 SL1 Paper-feeder pickup solenoid 30 J21 SW2 Paper-feeder door switch 31 J16 SW1 Paper feeder cassette media size switch 32 J15 M2 Paper-feeder lifter motor 33 J14 M1 Paper-feeder motor 352 Chapter 7 Solve problems ENWW
Sensors Figure 7-37 Sensors Table 7-11 Sensors ENWW Component abbreviation Component name SR1 Tray 3 paper surface sensor 1 SR2 Tray 3 paper surface sensor 2 SR3 Tray 3 paper sensor SR4 Tray 3 feed sensor SR5 Fuser (fixing) output sensor SR6 Output bin full sensor SR7 Fuser (fixing) pressure release sensor SR8 TOP sensor Tools for troubleshooting 353
Table 7-11 Sensors (continued) Component abbreviation Component name SR9 Tray 2 lift sensor SR11 Developing home position sensor SR13 Cassette presence sensor SR14 Loop sensor 1 SR15 Loop sensor 2 SR17 ITB disengagement sensor SR20 Cassette-media presence sensor SR21 MP-tray-media-presence sensor SR22 Duplex re-pickup sensor (HP Color LaserJet CP3525dn and HP Color LaserJet CP3525x only) 354 Chapter 7 Solve problems ENWW
ENWW STBY Print command INTR Timing chart is two consecutive print jobs on letter-size paper (full color using one-to-one speed mode) 23 Secondary transfer bias 22 Primary transfer bias Bk 21 Primary transfer bias C 20 Primary transfer bias M 19 Primary transfer bias Y 18 Developing bias Bk 17 Developing bias C 16 Developing bias M 15 Developing bias Y 14 Primary charging bias Bk 13 Primary charging bias C 12 Primary charging bias M 11 Primary charging bias Y 10 Pickup motor 9 Drum motor 3
Circuit diagrams Figure 7-39 General circuit diagram Fuser pressure release sensor Fuser delivery sensor Fuser motor Fuser 356 Chapter 7 Solve problems ENWW
Figure 7-40 Paper feeder circuit diagram ENWW Tools for troubleshooting 357
Print-quality troubleshooting tools Repetitive defects ruler If defects repeat at regular intervals on the page, use this ruler to identify the cause of the defect. Place the top of the ruler at the first defect. The marking that is beside the next occurrence of the defect indicates which component needs to be replaced. Figure 7-41 Repetitive defects ruler 0 mm 27 mm 32 mm 44 mm 49 mm 50 mm 63 mm 66 mm 75.
Distance between defects Product components that cause the defect 80 mm Printer: distance from primary transfer roller to secondary transfer roller for black 92 mm Print cartridge station to station pitch: distance from the centerline of one OPC to the centerline of the adjacent OPC ITB: drive roller 105 mm Printer: distance from registration to secondary transfer roller Calibrate the product Calibration is a product function that optimizes print quality.
The product returns to the Ready state after printing the print-quality-troubleshooting pages. Follow the instructions on the pages that print out.
Figure 7-44 Yellow comparison page Green Yellow Yellow cannot be easily seen unless combined with cyan, so half of each page is yellow and the other half is an amplified version of yellow problems (green half). Compare the yellow on page one with the corresponding green on page two for defects. You can also check the cyan page for defects.
Figure 7-45 Black print-quality troubleshooting page 1 2 3 1. Grids The grids are in inches and millimeters. They are label with letters and numbers so that defects can be described by position and by distance between repeats. 2. Color plane registration (CPR) bars After printing, the box with no extra color in each area on each page shows how far off the CPR of that color is. Each page has two process direction areas and three scan direction areas that are labeled x and y and 1–11.
HP Color LaserJet CP 3525 Printers Diagnostics Page 2 Page 1 1 4 3 5 6 7 8 DD MMM YYYY XX:XX 1 Calibration information 2 Parameters 3 Color density 4 Color plane registration 5 Primary colors 6 Secondary colors 7 Temperature values (22M) 8 Humidity values (22N) Cleaning page Create and use the cleaning page ENWW 1. Press the Menu button 2. Press the up arrow or down arrow / to highlight the CONFIGURE DEVICE menu, and then press the OK button. 3.
5. Press the up arrow or down arrow then press the OK button. / to highlight the PROCESS CLEANING PAGE option, and 6. Discard the printed page. The task is complete. Configuration page Depending on the model, up to three pages print when you select PRINT CONFIGURATION. In addition to the main configuration page, an embedded Jetdirect configuration page prints.
ENWW 2 Installed personalities and options 3 Color density 4 Calibration information 5 Memory 6 Event log 7 Security 8 Paper trays and options Tools for troubleshooting 365
HP embedded Jetdirect page The second configuration page is the HP embedded Jetdirect page, which contains the following information: Figure 7-47 HP embedded Jetdirect page HP Color LaserJet CP 3525 Printers Embedded Jetdirect Page Page 1 1 4 2 5 3 6 1 HP Jetdirect Configuration indicates the product status, model number, hardware firmware version, port select, port configuration, auto negotiation, manufacturing identification, and manufactured date.
Embedded protocol page The embedded protocol page contains the following information: Figure 7-48 Embedded protocol page HP Color LaserJet CP 3525 Printers Embedded Protocol Page Page 1 3 1 4 2 ENWW 1 IPX/SPX 2 Novell/NetWare 3 AppleTalk 4 DLC/LLC Tools for troubleshooting 367
Finding important information on the configuration pages Certain information, such as the firmware date codes, the IP address, and the e-mail gateways, is especially helpful while servicing the product. This information is on the various configuration pages. Table 7-12 Important information on the configuration pages Type of information Specific information Configuration page Firmware date codes DC controller Look on the main configuration page, under “Device Information.
Control-panel messages table Table 7-13 Control-panel messages Control panel message Description Recommended action 10.32.00 UNAUTHORIZED SUPPLY IN USE The product is using a non-HP supply. If you believe you purchased a genuine HP supply, go to http://www.hp.com/go/ anticounterfeit. Any product repair required as a result of using non-HP or unauthorized supplies is not covered under warranty. HP cannot ensure the accuracy or the availability of certain features.
Table 7-13 Control-panel messages (continued) Control panel message Description Recommended action cartridge, turn the power off and then on to continue. 1. Reconnect the connectors for the colortoner feed-motor rotational-count sensor (J2023), intermediate (J1929), and the DC controller PCA (J131). 2.
Table 7-13 Control-panel messages (continued) Control panel message Description Recommended action release. If it drops back down without hesitation, it is operating correctly. 13.02.00 JAM IN RIGHT DOOR The product fed a sheet of paper from one of This jam is commonly caused by multiple the trays and it reached the TOP sensor, but sheets being fed into the paper path at one stayed there too long. time. Printing glossy media in a humid environment can cause this jam. 13.04.
Table 7-13 Control-panel messages (continued) Control panel message Description Recommended action and check for the presence of paper. Remove any that is present . 4. Check the PF media feed sensor for proper operation. 13.21.00 DOOR OPEN JAM Either the right door or front door was open during printing. Close both doors. 13.30.00 JAM IN TRAY 1 The product attempted to feed paper from Tray 1, but the leading edge did not reach the TOP sensor in time. 1.
Table 7-13 Control-panel messages (continued) Control panel message Description Recommended action 13.XX.YY JAM IN TRAY 3 A jam has occurred in the indicated tray. For instructions on clearing the jam, see Clear jams in Tray 2 on page 413 or Clear jams in the optional 500-sheet paper and heavy media tray (Tray 3) on page 414. 13.XX.YY JAMS IN RIGHT DOOR A jam has occurred in the fuser area. CAUTION: The fuser can be hot while the product is in use. Wait for the fuser to cool before handling it.
Table 7-13 Control-panel messages (continued) Control panel message Description Recommended action FOR HELP PRESS ● X=4: No VSYNC error Turn the product off then on. To continue press OK ● X=6: ITB detection error ● X=7: Feed delay error ● X=8: Fuser too hot ● X=9: Noisy VDREQ 48.01 TRANSFER UNIT ERROR The transfer belt has dislocated during printing. Turn the product off and then on. 49.XXXX ERROR A firmware error has occurred.
Table 7-13 Control-panel messages (continued) Control panel message Description Recommended action 50.2 FUSER ERROR The fuser has experienced a warm-up error. 1. Reinstall the fuser. Check the connector (J50) between the fuser and the product. Replace the cable or fuser if the connector is damaged. 2. Reconnect the connectors (J138, J115) of the DC controller PCA˙. Reconnect connector (J60), on the power line between the low voltage power supply and the fuser. 3.
Table 7-13 Control-panel messages (continued) Control panel message Description Recommended action 50.8 FUSER ERROR The fuser has experienced a lowtemperature error. 1. Remove any paper jams from the fuser area. 2. Reinstall the fuser. Check the connector (J50) between the fuser and the product. Replace the cable or fuser if the connector is damaged. 3. If the problem persists, replace the fuser. See Fuser on page 179. 1. Reinstall the fuser.
Table 7-13 Control-panel messages (continued) Control panel message Description Recommended action and J110) on the DC controller PCA. 52.20 ERROR The scanner has experienced a rotational error. 3. Replace the cyan/black laser scanner or the yellow/magenta laser-scanner. See Laser/scanner assembly (C/Bk) on page 272 or Laser/scanner assembly (Y/M) on page 265. 1. Perform the laser scanner component tests in the DIAGNOSTICS menu. 2.
Table 7-13 Control-panel messages (continued) Control panel message Description Recommended action 55.01.YY DC CONTROLLER ERROR The DC controller has experienced a memory error. 1. Turn the product off, and then turn the product on. 2. If this message persists, replace the DC controller PCA. See DC controller PCA and tray on page 240. The engine is not communicating with the formatter. 1. Turn the product off, and then turn the product on. ● 55.02.YY: Outgoing parity error 2. ● 55.03.
Table 7-13 Control-panel messages (continued) Control panel message Description Recommended action fan, and environmental sensor on page 215. 57.XX ERROR A temporary printing error has occurred. Turn the product off, and then turn the product on. 57.XX ERROR A fan has experienced an error. 1. To continue turn off then on ● XX=01: Delivery fan Reconnect the connectors for FM1 (J119), FM2 (J138), and FM3 (J138) on the DCC. ● XX=02: Cartridge fan 2.
Table 7-13 Control-panel messages (continued) Control panel message Description Recommended action 59.5Y ERROR A drum motor has experienced a startup error. 1. Perform the drum-motors component test in the DIAGNOSTICS menu. ● Y=0: Black (drum motor 3) (M5) (J121) 2. ● Reconnect the connectors J120 or J121 on the DC controller PCA. Y=1: Cyan (drum motor 2) (M4) (J120) ● 3. Y=2: Magenta (drum motor 1) (M3) (M4) (J120) Replace the appropriate drum motor.
Table 7-13 Control-panel messages (continued) Control panel message Description Recommended action replace the ITB. See Intermediate transfer belt (ITB) on page 188. 59.XY ERROR A temporary printing error has occurred. Turn the product off then on. The Tray 2 lifter motor (M7) (SR13) has experienced an error. 1. Check the Tray 2 paper-surface sensor (u) in the MANUAL SENSOR TEST 2 (O) submenu in the DIAGNOSTICS menu. 2.
Table 7-13 Control-panel messages (continued) Control panel message 68.X STORAGE ERROR SETTINGS CHANGED To continue press OK Description Recommended action X values Replace the removable disk or memory DIMM. See Memory DIMM on page 176. ● 0 = Internal memory ● 1 = Removable disk One or more product settings are invalid and have been reset to the factory-default settings. Printing can continue, but some unexpected functions might occur if an error occurred in permanent storage.
Table 7-13 Control-panel messages (continued) Control panel message Description Recommended action CARD SLOT FILE OPERATION FAILED A PJL file system command attempted to perform an illogical operation. Press the OK button to clear. To clear press OK CARD SLOT FILE SYSTEM IS FULL To clear press OK CARD SLOT IS WRITE PROTECTED A PJL file system command could not store Press the OK button to clear. something on the file system because the file system was full.
Table 7-13 Control-panel messages (continued) Control panel message Description Recommended action CLOSE RIGHT DOOR A door on the right side of the product is open. 1. Close the door. 2. If the message persists, check the rightdoor sensor flag. 3. Replace the right door. See Right-door assembly on page 194. Cooling engine The product is cooling. No action is necessary. Creating... A cleaning page is being generated. No action is necessary.
Table 7-13 Control-panel messages (continued) Control panel message Description Recommended action FUSER LOW OR OUT The fuser needs to be replaced. Replace the fuser. See Fuser on page 179. Genuine HP supplies installed You have installed more than one new print cartridge that was manufactured by HP. No action is necessary. HP ENCRYPTED DRIVE DISABLED The drive has been encrypted for another product. Remove the drive or see the embedded Web server for more information.
Table 7-13 Control-panel messages (continued) Control panel message Description Recommended action INSUFFICIENT MEMORY TO LOAD FONTSDATA The product does not have enough memory to load the data (for example, fonts or macros) from the place specified. To continue without this information press the OK button . If the message persists, add more memory. LOAD TRAY 1 [TYPE] [SIZE] To continue press OK LOAD TRAY 3 [TYPE] [SIZE] ● 20.1: Internal: Fonts on ROM directly on formatter ● 20.
Table 7-13 Control-panel messages (continued) Control panel message Description Recommended action MANUALLY FEED Load tray with requested paper. To continue press OK This message displays when Tray 1 is selected but is not loaded, and other paper trays are available for use. MANUALLY FEED The specified job requires a manual feed. Load tray with requested paper. If paper is already in tray, press the help button to exit the message and then press the OK button to print.
Table 7-13 Control-panel messages (continued) Control panel message Description Recommended action ORDER FUSER KIT The fuser is near end of life. The product is ready and will continue for the estimated number of pages indicated. Printing will continue until a supply needs to be replaced. Order a replacement fuser kit. LESS THAN XXXX PAGES ORDER SUPPLIES More than one supply is nearing the end of its Order the necessary supplies. estimated useful life.
Table 7-13 Control-panel messages (continued) Control panel message Description Recommended action RAM DISK FILE OPERATION FAILED A PJL file system command attempted to perform an illogical operation. Press the OK button to clear. To clear press OK RAM DISK FILE SYSTEM IS FULL To clear press OK RAM DISK IS WRITE PROTECTED A PJL file system command could not store Press the OK button to clear. something on the file system because the file system was full.
Table 7-13 Control-panel messages (continued) Control panel message Description Recommended action REPLACE FUSER KIT The fuser is nearing the end of its useful life. Printing can continue. CAUTION: The fuser can be hot while the product is in use. Wait for the fuser to cool before handling it. REPLACE FUSER KIT To continue press OK The REPLACE SUPPLIES menu is set to the STOP AT LOW setting. The fuser kit has reached the low threshold. 1. Open the right door. 2.
Table 7-13 Control-panel messages (continued) Control panel message Description Recommended action longer acceptable. The supply does not need to be replaced now unless the print quality is no longer acceptable. Once an HP supply has reached its estimated end of life, HP’s premium Protection Warranty on that supply has ended. Printing can continue using override (see REPLACE SUPPLIES menu item). NOTE: Printing while in Override mode eventually results in unsatisfactory print quality.
Table 7-13 Control-panel messages (continued) Control panel message Description Recommended action Restoring... The product is restoring settings. This message is displayed during the execution of a restore action, such as RESTORE COLOR VALUES. Wait until the process is complete. RESTRICTED FROM PRINTING IN COLOR This message displays when color printing is disabled for the product or when it is disabled for a particular user or print job.
Table 7-13 Control-panel messages (continued) Control panel message Description Recommended action TRAY SIZE = The product is set to print on a small paper size that requires the HP postcard mediainsert to be installed in this tray. To use this size paper, install the media insert before loading the paper.
Table 7-13 Control-panel messages (continued) Control panel message Description Recommended action USB STORAGE FILE SYSTEM IS FULL A PJL file system command could not store something on the file system because the file system was full. Press the OK button to clear. The file system device is protected and no new files can be written to it. Press the OK button to clear. USB STORAGE NOT INITIALIZED This file-storage component must be initialized before use.
Event log messages This section describes the event log messages. Print an event log Use the event log to help diagnose and solve product problems. 1. Press the Menu 2. Press the down arrow to highlight DIAGNOSTICS, and then press the OK button. 3. Press the down arrow the pages. to highlight PRINT EVENT LOG, and then press the OK button to print button. Show an event log Use the control panel to view the event log. ENWW 1. Press the Menu 2.
Sample event log Figure 7-49 Sample event log hp color LaserJet CP 3525 Printers Event Log Page 1 1 2 3 4 5 6 1 Product information 2 Event number 3 Date and time 4 Engine cycles 5 Event log code 6 Firmware version number 7 Description of personality 7 Clear the event log Use the SERVICE menu to clear the event log. 1. Press the Menu 2. Press the down arrow to highlight SERVICE, and then press the OK button. 3. Press the down arrow the pages.
Event log message table ENWW Event log message Description Comments 10.40.00 Genuine HP Supplies Installed Transition from at least one non-HP to all genuine HP supplies. (no control panel message) 10.50.23 Fuser kit life reset above order threshold. For products without fusable link 10.80.YY Override not in use due to user limit The cartridge out override is deactivated because the user limit was reached on at least one cartridge.
Event log message Description 13.10.00 DUPLEX TURN AROUND, PAPER LATE JAM 13.11.00 DUPLEX TURN AROUND, PAPER STOPPED JAM 13.12.00 DUPLEX PATH, PAPER LATE JAM 13.12.01 EXTERNAL OUTPUT DEVICE PAPER JAM The paper reaches the entrance sensor earlier than expected. 13.12.02 EXTERNAL OUTPUT DEVICE PAPER JAM The paper does not reach the entrance sensor. 13.12.03 EXTERNAL OUTPUT DEVICE PAPER JAM The paper does not exit the entrance sensor. 13.12.
Event log message Description 13.1F.00 NON-SPECIFIC PAPER JAM 13.20.00 PRINTER COULD NOT AUTOMATICALLY EJECT PAPER 13.21.00 DOOR OPEN JAM 13.22.00 NON-SPECIFIC PAPER JAM 13.23.00 OHT TYPE ERROR 13.24.00 PAPER JAM, TOO SHORT 13.25.00 PAPER JAM, TOO LONG 13.26.00 NON-SPECIFIC PAPER JAM 13.27.00 NON-SPECIFIC PAPER JAM 13.28.00 NON-SPECIFIC PAPER JAM 13.29.00 DUPLEX PATH (reefed), PAPER STOPPED JAM 13.2A.00 NON-SPECIFIC PAPER JAM 13.2B.00 NON-SPECIFIC PAPER JAM 13.2C.
Event log message Description ● X=15. Main drive ● X=16. Main drive ● X=17. Main drive scanner ● X=18. Scanner inclination adjustment ● X=19. T2 roller Comments 54.01 The humidity-environment sensor is abnormal. Ensure the product is in a supported environment. If the error persists, replace the CN1 environment sensor. 54.02 Printer error Developer failure 54.03 Printer error Density sensor failure. 54.
Event log message Comments ● XX=02: Magenta densitymeasurement abnormality 3. ● Press the down arrow to highlight PRINT QUALITY, and then press the OK button. XX=03: Yellow densitymeasurement abnormality 4. Press the down arrow to highlight QUICK CALIBRATE NOW, and then press theOK button. 54.0E.01 Media sensor replace registration-second-transfer assembly The registration unit is abnormal. Ensure the product is in a supported environment.
Event log message 55.06.01 55.06.02 Description The DC controller NVRM has an abnormal read/write. The DC controller NVRM is not accessible. Comments 3. Press the down arrow to highlight PRINT QUALITY, and then press the OK button. 4. Press the down arrow to highlight FULL CALIBRATE NOW, and then press the OK button. 5. If the error persists, replace the CPR sensor assembly. 6. Replace the ITB. See Intermediate transfer belt (ITB) on page 188. 1. Turn the product off then on. 2.
ENWW Event log message Description 99.00.08 An unexpected read error occurred when reading the remainder of the header. 99.00.09 Unexpected read error occurred when reading image data. 99.00.10 Job canceled when reading header number and size 99.00.11 The job was cancelled when reading the remainder of the header. 99.00.12 The header number is one, but the header size does not match the version one size. 99.00.
Clear paper jams Common causes of jams The product is jammed. Cause Solution The paper does not meet specifications. Use only paper that meets HP specifications. See Supported paper and print media sizes on page 44. A component is installed incorrectly. Verify that the transfer belt and transfer roller are correctly installed. You are using paper that has already passed through a product or copier. Do not use paper that has been previously printed on or copied. An input tray is loaded incorrectly.
Jam locations Use this illustration to identify locations of jams. In addition, instructions appear on the control panel to direct you to the location of jammed paper and how to clear it. NOTE: Internal areas of the product that might need to be opened to clear jams have green handles or green labels.
Type of jam Procedure 13.XX.YY JAM IN TRAY 1 See Clear jams in Tray 1 on page 411. 13.XX.YY JAM IN TRAY 2 See Clear jams in Tray 2 on page 413. 13.XX.YY JAM IN TRAY 3 See Clear jams in the optional 500-sheet paper and heavy media tray (Tray 3) on page 414. 13.XX.YY JAM IN LOWER RIGHT DOOR See Clear jams in the lower right door (Tray 3) on page 414. Clear jams in the right door CAUTION: The fuser can be hot while the product is in use. Wait for the fuser to cool before handling it.
3. If paper is jammed inside the right door, gently pull the paper to remove it. 4. Lift the paper-feed cover on the inside of the right door. If jammed paper is present, gently pull the paper straight out to remove it. 5. Close the paper-feed cover.
6. Gently pull the paper out of the pickup area. 7. Look for paper in the Tray 2 roller area. Near the bottom of the right side, squeeze the two white levers upward to release the jam-access door. Remove any jammed paper, and close the door. 8. If paper is visible entering the bottom of the fuser, gently pull downward to remove it. CAUTION: Do not touch the rollers on the transfer roller. Contaminates can affect print quality. 9. Paper could be jammed inside the fuser where it would not be visible.
CAUTION: The fuser can be hot while the product is in use. Wait for the fuser to cool before handling it. a. Grasp the fuser handles, lift up slightly, and pull straight out to remove the fuser. b. Open the jam-access door. If paper is jammed inside the fuser, gently pull it straight up to remove it. If the paper tears, remove all paper fragments. CAUTION: Even if the body of the fuser has cooled, the rollers that are inside could still be hot. Do not touch the fuser rollers until they have cooled.
10. Close the right door. Clear jams in the output bin area TIP: To see an animation of this procedure go to this Web site: www.hp.com/go/cljcp3525-outputjams. 1. If paper is visible from the output bin, grasp the leading edge and remove it. 2. If jammed paper is visible in the duplex output area, gently pull it to remove it.
Clear jams in Tray 1 TIP: To see an animation of this procedure go to this Web site: www.hp.com/go/cljcp3525-tray1jams. ENWW 1. If jammed paper is visible in Tray 1, clear the jam by gently pulling the paper straight out. Press the OK button to clear the message. 2. If you cannot remove the paper, or if no jammed paper is visible in Tray 1, close Tray 1 and open the right door. 3. If paper is visible inside the right door, gently pull the trailing edge to remove it.
4. Gently pull the paper out of the pick up area. 5. Close the right door.
Clear jams in Tray 2 CAUTION: Opening a tray when paper is jammed can cause the paper to tear and leave pieces of paper in the tray, which might cause another jam. Be sure to clear jams before opening the tray. TIP: To see an animation of this procedure go to this Web site: www.hp.com/go/cljcp3525-tray2jams. ENWW 1. Open Tray 2 and make sure that the paper is stacked correctly. Remove any jammed or damaged sheets of paper. 2. Close the tray.
Clear jams in the optional 500-sheet paper and heavy media tray (Tray 3) TIP: To see an animation of this procedure go to this Web site: www.hp.com/go/cljcp3525-tray3jams. 1. Open Tray 3 and make sure that the paper is stacked correctly. Remove any damaged or jammed sheets of paper. 2. Close Tray 3. Clear jams in the lower right door (Tray 3) TIP: To see an animation of this procedure go to this Web site: www.hp.com/go/cljcp3525-lower-rightdoor-jams. 1. Open the lower right door.
2. If paper is visible, gently pull the jammed paper up or down to remove it. 3. Close the lower right door. Jam causes and solutions For locations of jam sensors, see Sensors on page 353. Jams in the output bin Table 7-14 Causes and solutions for delivery delay jam ENWW Cause Solution The output-bin media-full sensor lever is damaged Replace the paper delivery assembly. See Delivery assembly on page 303.
Jams in the fuser and transfer area Table 7-15 Causes and solutions for fuser delivery delay jams Cause Solution The lever for the loop-sensors (loop 1 and loop 2) is not set correctly. Check the loop-sensor lever and place it in the correct position. If the jam persists, replace the fuser. See Fuser on page 179. The spring of the fuser-delivery-sensor lever is Check the spring of the fuser and right-door sensor levers and place them in unhooked. the correct position.
Table 7-17 Causes and solutions for fuser delivery stationary jams (continued) Cause Solution Poor contact of the fuser delivery sensor connector Reconnect the intermediate connector (J95) of the fuser delivery sensor and the connector (J123) on the DC controller PCA. The fuser delivery sensor is defective Run the sensor test in the sensor monitor mode to verify that the fuser delivery sensor is functioning properly. If it is not replace the fuser delivery sensor.
Table 7-18 Causes and solutions for residual media jams (continued) Cause Solution Poor contact of the residual media jam detective sensor connector Run the sensor test in the sensor monitor mode to verify which sensor detects the media. Reconnect the following corresponding sensor connector: The residual media jam detective sensor is defective.
Table 7-19 Causes and solutions for pickup delay jams 2 (continued) Cause Solution Poor contact of the pickup motor drive connector Reconnect the connector (J131) on the DC controller PCA. The pickup motor is defective. Run the pickup motor drive test in the actuator drive mode to verify that the pickup motor is functioning properly. If it is not, replace the pickup motor. See Pickup motor on page 253.
Table 7-21 Causes and solutions for duplexing reverse jams (continued) Cause Solution Poor contact of the duplex reverse-motor connector Reconnect the connectors (J202 and J201) on the high-voltage power supply (upper) PCA and connector (J113) on the DC controller PCA. The duplex reverse motor is defective Replace the duplex drive assembly. See Duplex-drive assembly on page 308.
Table 7-23 Causes and solutions for residual media jams (continued) Cause Solution The fuser-delivery-sensor lever is damaged Replace the sensor (SR5). Poor contact of the fuser-delivery sensor connector Reconnect the connectors of the fuser-delivery sensor (J46), intermediate (J95) and the DC controller PCA (J123). The fuser-delivery repick sensor is defective Check the fuser-delivery sensor via the sensor monitor mode. If the sensor is defective, replace the fuser. See Fuser on page 179.
Table 7-25 Causes and solutions for pickup stationary jams Cause Solution Multiple feed of media Replace any worn or deformed parts (tray separation pad, tray feed roller, MP tray pickup roller or MP tray separation pad). If replacing the MP tray separation pad, you must replace the right door assembly. See Right-door assembly on page 194. Check the separation pad and MP tray separation pad to see if they are firmly seated and coupled with the torque limiter.
Jams in Tray 3 Table 7-27 Causes and solutions for pickup delay and pickup stationary jams ENWW Cause Solution The paper-feeder pickup roller is worn or deformed Replace the Tray 3 pickup roller. See Pickup and feed rollers (Tray 3) on page 182. The paper-feeder separation roller is worn or deformed Replace the Tray 3 separation roller. See Pickup and feed rollers (Tray 3) on page 182. The paper-feeder feed roller 1 is worn or deformed Replace the Tray 3 feed roller.
Change jam recovery This product provides a jam recovery feature that reprints jammed pages. The following options are available: ● AUTO — The product attempts to reprint jammed pages when enough memory is available. This is the default setting. ● OFF — The product does not try to reprint jammed pages. Because no memory is used to store the most recent pages, performance is optimal.
Solve paper-handling problems Product feeds multiple sheets Product feeds multiple sheets Cause Solution The input tray is overfilled. Open the tray and verify that the paper stack is below the maximum stack height mark. Remove excess paper from the input tray. Print paper is sticking together. Remove paper, flex it, rotate it 180 degrees or flip it over, and then reload it into the tray. NOTE: Do not fan paper. Fanning can cause static electricity, which can cause paper to stick together.
Product pulls from incorrect tray Cause Solution The paper size is not configured correctly for the input tray. Print a configuration page or use the control panel to determine the paper size for which the tray is configured. The guides in the tray are not against the paper. Verify that the guides are touching the paper. Paper does not feed automatically Paper does not feed automatically Cause Solution Manual feed is selected in the software program.
Paper does not feed from Tray 2 or 3 Cause Solution the printer driver has been configured to recognize the optional trays. An optional tray is incorrectly installed. Print a configuration page to confirm that the optional tray is installed. If not, verify that the tray is correctly attached to the product. The paper size is not configured correctly for the input tray. Print a configuration page or use the control panel to determine the paper size for which the tray is configured.
Envelopes jam or will not feed in the product Cause Solution Envelope orientation is incorrect. Verify that the envelope is loaded correctly. This product does not support the envelopes being used. Refer to the HP LaserJet Printer Family Print Media Guide. Tray 1 is configured for a size other than envelopes. Configure Tray 1 size for envelopes. Output is curled or wrinkled Output is curled or wrinkled Cause Solution Paper does not meet the specifications for this product.
Product will not duplex (print 2-sided jobs) or duplexes incorrectly ENWW Cause Solution The product model does not support automatic 2-sided printing. The HP Color LaserJet CP3525 and HP Color LaserJet CP3525n models do not support automatic 2-sided printing. The product configuration is not set for duplexing. In Windows, run the automatic configuration feature: 1. Click the Start button, point to Settings, and then click Printers (for Windows 2000) or Printers and Faxes (for Windows XP). 2.
Use manual print modes Try the following multi-purpose (MP) modes to see if they solve the image-quality problems. These options can be found in the ADJUST PAPER TYPES and OPTIMIZE submenus under the PRINT QUALITY menu on the control panel.
Table 7-28 MP modes under the ADJUST PAPER TYPES sub menu (continued) your print jobs, set the Fuser Temp feature to one of the Alternate settings . Try the ALTERNATE 1 setting first and see if it solves the problem. If you continue to see the problem, try ALTERNATE 2 and then ALTERNATE 3. Using the ALTERNATE 2 and ALTERNATE 3 settings might cause an extra delay between jobs. PAPER CURL MODE Use in high-humidity and high-temperature environments.
Solve image-quality problems This section helps you define print-quality problems and what to do to correct them. Often print-quality problems can be handled easily by making sure that the product is maintained, using paper that meets HP specifications, or running a cleaning page. Image defects table The following examples depict letter-size paper that has passed through the product short-edge first.
Problem Cause Solution The page is all black or a solid color. Poor contact exists in the primary charging bias or developing bias contacts between the print cartridge and the product. Clean each contact of the color that produces the all black or solid color. If the problem remains after cleaning, check the contacts for damage. Replace any deformed or damaged parts. Replace the affected print cartridge. White spots appear in an image The primary transfer roller is deformed or has deteriorated.
Problem Sample Vertical white lines appear in a particular color. Cause Solution The laser beam window is dirty. Clean the window and remove any foreign substances. Scratches are present on the circumference of the developing cylinder or photosensitive drum. Remove the affected print cartridge and re-install. The PGCs will clean the glass. White scratch down the page could mean the scanner glass needs to be cleaned. Vertical white lines appear in all colors.
Problem Image in a particular color does not print in the correct color. Dropouts appear. The toner is not fully fused to the paper. Sample Cause Solution Poor contact exists in the primary charging bias or developing bias contacts between the print cartridge and the product. Clean each contact of the color that produces the missing color. If the problem remains after cleaning, check the contacts for damage. Replace any deformed or damaged parts.
Problem Sample Some color is misregistered. Cause Solution The product is incorrectly calibrated. Calibrate the product. The ITB unit is defective. If the ITB does not rotate smoothly or a cleaning malfunction occurs (ITB is dirty), replace the ITB. See Intermediate transfer belt (ITB) on page 188. The drive gear of the ITB motor is worn or chipped. Check each drive gear between the ITB drive roller and the ITB motor. If the gear is worn or chipped, replace the drive unit.
Problem The printed page contains wrinkles or creases. The front of the page is dirty. Sample Cause Solution The roller or media feed guide is dirty. Clean any dirty components. A feed roller is deformed or has deteriorated. Replace any deformed or deteriorated rollers. The paper feed guide is damaged. Replace the paper-feed-guide unit. The photosensitive drum is dirty. Replace the print cartridge. The fuser roller or pressure roller is dirty. Execute a Pressure roller clean mode.
Solve performance problems Problem Cause Solution Pages print but are totally blank. The document might contain blank pages. Check the document that you are printing to see if content appears on all of the pages. The product might be malfunctioning. To check the product, print a Configuration page. Heavier paper types can slow the print job. Print on a different type of paper. Complex pages can print slowly. Proper fusing may require a slower print speed to ensure the best print quality.
Solve connectivity problems Solve direct-connect problems If you have connected the product directly to a computer, check the cable. ● Verify that the cable is connected to the computer and to the product. ● Verify that the cable is not longer than 2 meters (6 feet). Replace the cable if necessary. ● Verify that the cable is working correctly by connecting it to another product. Replace the cable if necessary.
Check your system for proper network operating system setup. 8. Is your protocol enabled? Check the status of your protocol on the Configuration page. You can also use the embedded Web server to check the status of other protocols. See Embedded Web server on page 74. 9. Does the product appear in HP Web Jetadmin or other management application? ● Verify network settings on the Network configuration page.
Service mode functions Service menu The SERVICE menu is PIN-protected for added security. Only authorized service people have access to the SERVICE menu. When you select SERVICE from the list of menus, the product prompts you to enter an eight-digit PIN number. The PIN for the HP Color LaserJet CP3525 Series is 09352508. 1. Press the Menu 2. Press the down arrow 3. Enter the eight-digit PIN using the alphanumeric keypad. 4. Press the OK button to enter the PIN and open the SERVICE menu. button.
calculate the dates. The date 17-October-2002 is used as an example. 1. To calculate YY, subtract 1990 from the calendar year. For instance, if the product was first used in 2002, calculate YY as follows: 2002 - 1990 = 12. YY = 12. 2. Subtract 1 from 10 (October is the tenth month of the year): 10 - 1 = 9. ◦ Multiply 9 by 30: 9 x 30 = 270 or add 17 to 270: 270 + 17 = 287. Thus, DDD = 287.
Hard disk initialization (optional) A hard disk initialization will erase and reformat the product's hard disk. Perform hard disk initialization only if an error code displays on the control panel indicating a disk error. Always try initializing the hard disk before replacing it. 1. Turn the product on. 2. As the product performs its power-on sequence, press and hold the Menu lights on the control panel are lit. 3. Press the back arrow 4. Press the down arrow .
444 Chapter 7 Solve problems ENWW
8 ENWW Parts and diagrams ● Order parts, accessories, and supplies ● Part numbers ● Screws ● How to use the parts lists and diagrams ● External covers, panels, and doors ● Right door assembly ● Internal components ● Assessories ● Alphabetical parts list ● Numerical parts list 445
Order parts, accessories, and supplies You can obtain the following items directly from HP: ● Replacement parts: To order replacement parts in the U.S., go to www.hp.com/go/hpparts/. Outside the United States, order parts by contacting your local authorized HP service center. ● Supplies and accessories: To order supplies in the U.S., go to www.hp.com/go/ljsupplies. To order supplies worldwide, go to www.hp.com/ghp/buyonline.html. To order accessories, go to www.hp.com/support/cljcp3525.
Part numbers The following list of accessories was current at the time of printing. Ordering information and availability of the accessories might change during the life of the product.
Cables and interfaces Product name Product number Part number HP Jetdirect 635n IPv6/Ipsec print server J7961G (EIO) USB cable 2 meter standard C6518A Customer self repair (CSR) parts Product name Product number Part number 1x500 paper feeder right door kit CC468-67906 Duplex reverse guide kit CC468-67913 Formatter assembly kit CC460-69001 Front door kit CC468-67920 Fuser (fixing) cleaning kit (8.
Product name Product number Part number Control panel overlay ZHTW CC468-40036 Control panel overlay JA CC468-40038 Control panel overlay KO CC468-40039 Control panel overlay TH CC468-40040 Control panel overlay HR CC468-40011 Control panel overlay CS CC468-40012 Control panel overlay EL CC468-40013 Control panel overlay HU CC468-40014 Control panel overlay PL CC468-40015 Control panel overlay RO CC468-40016 Control panel overlay RU CC468-40017 Control panel overlay SK CC468-40018
Maintenance kits Product name Product number 110V fuser (fixing) preventative maintenance kit (PM) CE484A 220V fuser (fixing) preventative maintenance kit (PM) CE506A 450 Chapter 8 Parts and diagrams Part number ENWW
Screws NOTE: The screw illustrations in the following table are for reference only. Screws might vary in size and appearance from those shown in this table.
How to use the parts lists and diagrams The figures in this chapter show the major subassemblies in the product and their component parts. A parts list table follows each exploded view assembly diagram. Each table lists the item number, the associated part number, and the description of each part. If a part is not listed in the table, then it is not a field replacement unit (FRU). CAUTION: Be sure to order the correct part.
ENWW How to use the parts lists and diagrams 453
External covers, panels, and doors Figure 8-1 External covers, panels, and doors SEE RIGHT DOOR ASSEMBLY 12 11 454 Chapter 8 Parts and diagrams ENWW
Table 8-2 External covers, panels, and doors; ENWW Ref Description Part number Qty 1 Cover, right front RC2-5056-000CN 1 2 Cover, rear RC2-5048-000CN 1 3 Cover, left RC2-5052-000CN 1 4 Cover, upper RC2-5054-000CN 1 5 Cover, rear right RC2-5057-000CN 1 6 Cover, right lower RC2-5059-000CN 1 8 Plate, blanking RC2-5938-000CN 1 9 Tray, paper delivery RL1-1941-000CN 1 10 Control panel assembly RM1-5743-000CN 1 11 Front door assembly RM1-4986-000CN 1 11 Front door kit
Right door assembly Figure 8-2 Right door assembly 1 SEE DUPLEX FEED ASSEMBLY 2 1a 456 Chapter 8 Parts and diagrams ENWW
Table 8-3 Right door assembly ENWW Ref Description Part number Qty 1 Right door assembly (duplex) RM1-4957-000CN 1 1 Right door assembly (simplex) RM1-5005-000CN 1 Right door assembly 457
Internal components Internal components (1 of 5) Figure 8-3 Internal components 1 of 5 458 Chapter 8 Parts and diagrams ENWW
Table 8-4 Internal components (1 of 5) ENWW Ref Description Part number Qty 1 Lifter cable assembly RM1-5742-000CN 1 3 Cover, front inner lower RL1-1914-000CN 1 5 Cover, front inner upper RC2-5006-000CN 1 6 Cover, front inner lower RL1-1915-000CN 1 8 Cover, left lower RC2-5069-000CN 1 12 Waste toner detect assembly RM1-5696-000CN 1 13 Waste toner duct assembly RM1-4977-000CN 1 14 Toner collection unit kit CC468-67910 1 17 Spring, tension RU6-2236-000CN 4 18 Spring,
Internal components (2 of 5) Figure 8-4 Internal components 2 of 5 460 Chapter 8 Parts and diagrams ENWW
Table 8-5 Internal components (2 of 5) ENWW Ref Description Part number Qty 1 Fan cable assembly RM1-5746-000CN 1 5 Spring, tension RU6-2436-000CN 4 8 Spring, leaf RC2-5970-000CN 4 10 Tab RC2-5909-000CN 2 11 Shutter RC2-5910-000CN 2 12 Cover RC2-5912-000CN 3 13 Spring, torsion RC2-5958-000CN 3 14 Holder, cartridge lock lever RC2-5955-000CN 3 15 Lever, cartridge lock RC2-5954-000CN 3 18 Cover RC2-5962-000CN 1 20 Spring, compression RU6-2318-000CN 8 21 Spring
Internal components (3 of 5) Figure 8-5 Internal components 3 of 5 SEE FUSER SEE REGISTRATION ASSEMBLY SEE CASSETTE PAPER PICKUP ASSEMBLY SEE SECONDARY TRANSFER ASSEMBLY 462 Chapter 8 Parts and diagrams ENWW
Table 8-6 Internal components (3 of 5) ENWW Ref Description Part number Qty 6 Link, door stopper right RC2-4916-000CN 1 9 Cover, right lower inner RC2-5019-000CN 1 10 Interlock link RC2-5120-000CN 1 11 Interlock switch mount RC2-5123-000CN 1 12 Interlock link switch arm RC2-5121-000CN 1 14 Interlock link RC2-5119-000CN 1 15 Interlock link RC2-5118-000CN 1 17 Switch lever RC2-5124-000CN 1 18 Shaft RC2-5913-000CN 1 19 Spring, torsion RC2-5934-000CN 1 20 Cartridge
Internal components (4 of 5) Figure 8-6 Internal components 4 of 5 SEE PCAs SEE PCAs SEE PCAs SEE PCAs 464 Chapter 8 Parts and diagrams SEE PCAs ENWW
Table 8-7 Internal components (4 of 5) ENWW Ref Description Part number Qty 1 Fusing (fixing) connecting cable assembly RM1-5714-000CN 1 2 Door stopper right link RC2-4916-000CN 1 6 Fan RK2-2416-000CN 1 11 Switch arm RC2-5943-000CN 1 16 Scanner flat cable RK2-2506-000CN 1 17 Rear cable assembly RM1-5721-000CN 1 18 Switch connecting cable assembly RM1-5719-000CN 1 19 Scanner flat cable RK2-2508-000CN 1 24 Right door rear hinge RC2-4895-000CN 1 25 MP sensor cable ass
Internal components (5 of 5) Figure 8-7 Internal components 5 of 5 466 Chapter 8 Parts and diagrams ENWW
Table 8-8 Internal components (5 of 5) ENWW Ref Description Part number Qty 1 Duplexing unit cable assembly RM1-5730-000CN 1 5 Pick up motor cable assembly RM1-5731-000CN 1 7 Lifter drive assembly RM1-4976-000CN 1 8 Drum motor assembly RM1-4988-000CN 3 13 Photo interrupter, TLP1243 WG8-5696-000CN 1 14 Cassette paper pick up drive assembly with motor RM1-4975-000CN 1 19 Rear Pre-exposure PCA assembly RM1-5705-000CN 1 22 Fusing (fixing) drive assembly with motor (duplex) RM
Cassette Figure 8-8 Cassette 1 2 468 Chapter 8 Parts and diagrams ENWW
Table 8-9 Cassette ENWW Ref Description Part number Qty 1 250 sheet cassette RM1-4962-000CN 1 2 Separation roller assembly (250 tray) CC468-67911 1 Internal components 469
Cassette paper pickup assembly Figure 8-9 Cassette paper pickup assembly 470 Chapter 8 Parts and diagrams ENWW
Table 8-10 Cassette paper pickup assembly ENWW Ref Description Part number Qty 1 Pickup roller (250 cassette) CC468-67911 1 Internal components 471
MP paper pickup assembly Figure 8-10 MP paper pickup assembly 472 Chapter 8 Parts and diagrams ENWW
Table 8-11 MP paper pickup assembly ENWW Ref Description Part number Qty 1 Pickup roller (MP) CC468-67911 1 Internal components 473
Registration assembly Figure 8-11 Registration assembly 474 Chapter 8 Parts and diagrams ENWW
Table 8-12 Registration assembly ENWW Ref Description Part number Qty 1 Registration assembly (simplex) RM1-5009-000CN 1 1 Registration assembly (duplex) RM1-4969-000CN 1 Internal components 475
Secondary transfer assembly Figure 8-12 Secondary transfer assembly 476 Chapter 8 Parts and diagrams ENWW
Table 8-13 Secondary Transfer assembly ENWW Ref Description Part number Qty 1 Secondary transfer assembly (simplex) kit CC468-67916 1 1 Secondary transfer assembly (duplex) kit CC468-67915 1 Internal components 477
Delivery assembly Figure 8-13 Delivery assembly 478 Chapter 8 Parts and diagrams ENWW
Table 8-14 Delivery assembly ENWW Ref Description Part number Qty 1 Paper delivery assembly (simplex) RM1-5003-000CN 1 1 Paper delivery assembly (duplex) RM1-4970-000CN 1 Internal components 479
Fusing (fixing) assembly Figure 8-14 Fusing (fixing) assembly (1 of 2) 480 Chapter 8 Parts and diagrams ENWW
ENWW Internal components 481
Figure 8-15 Fusing (fixing) assembly (2 of 2) 482 Chapter 8 Parts and diagrams ENWW
Table 8-15 Fusing assembly ENWW Ref Description Part number Qty 1 Fuser (fixing) 110 V assembly kit CC519-67901 1 1 Fuser (fixing) 220 V assembly kit CC519-67902 1 Internal components 483
PCAs Figure 8-16 PCAs 1 2 3 6 5 4 484 Chapter 8 Parts and diagrams ENWW
Table 8-16 PCAs ENWW Ref Description Part number Qty 1 Lower HVPS-D PCA assembly RM1-5680-000CN 1 2 Upper HVPS-T PCA assembly RM1-5681-000CN 1 3 DC controller PCA assembly RM1-5678-000CN 1 4 LVPS 110V RM1-5685-000CN 1 4 LVPS 220V RM1-5686-000CN 1 5 Inner connecting PCA assembly RM1-5695-000CN 1 6 Formatter assembly CE859-69001 1 Internal components 485
Assessories 1 x 500 paper feeder Figure 8-17 1 x 500 paper feeder CASSETTE 486 Chapter 8 Parts and diagrams ENWW
1 x 500 paper feeder Figure 8-18 1 x 500 paper feeder ENWW Assessories 487
Table 8-17 1 x 500 paper feeder Ref Description Part number Qty 1 1 x 500 sheet feeder replacement kit CC468-67905 1 9 1 x 500 sheet feeder right door kit CC468-67906 1 488 Chapter 8 Parts and diagrams ENWW
Paper feeder main body Figure 8-19 Paper feeder main body ENWW Assessories 489
Table 8-18 Paper feeder main body Ref Description Part number Qty 5 Roller assembly paper feeder (500 SF) CC468-67911 1 6 Roller, paper pick up (500 SF) CC468-67911 1 13 Drawer connector VSI-7257-007-CN 1 14 Drawer connector holder RC2-5416-000CN 1 490 Chapter 8 Parts and diagrams ENWW
Cassette Figure 8-20 Cassette ENWW Assessories 491
Table 8-19 Cassette Ref Description Part number Qty 1 500 sf cassette RM1-6198-000CN 1 492 Chapter 8 Parts and diagrams ENWW
Alphabetical parts list Table 8-20 Alphabetical parts list ENWW Description Part number Table and page 1 x 500 sheet feeder replacement kit CC468-67905 1 x 500 paper feeder on page 488 1 x 500 sheet feeder right door kit CC468-67906 1 x 500 paper feeder on page 488 250 sheet cassette RM1-4962-000CN Cassette on page 469 500 sf cassette RM1-6198-000CN Cassette on page 492 Base RL1-2144-000CN Internal components (2 of 5) on page 461 Base RL1-1923-000CN Internal components (2 of 5) on page
Table 8-20 Alphabetical parts list (continued) Description Part number Table and page Cover, right front RC2-5056-000CN External covers, panels, and doors; on page 455 Cover, right lower RC2-5059-000CN External covers, panels, and doors; on page 455 Cover, right lower inner RC2-5019-000CN Internal components (3 of 5) on page 463 Cover, upper RC2-5054-000CN External covers, panels, and doors; on page 455 DC controller PCA assembly RM1-5678-000CN PCAs on page 485 Density detect sensor assemb
Table 8-20 Alphabetical parts list (continued) ENWW Description Part number Table and page Fuser (fixing) 220 V assembly kit CC519-67902 Fusing assembly on page 483 Fusing (fixing) connecting cable assembly RM1-5714-000CN Internal components (4 of 5) on page 465 Fusing (fixing) drive assembly with motor (duplex) RM1-4974-000CN Internal components (5 of 5) on page 467 Fusing (fixing) drive assembly with motor (simplex) RM1-5001-000CN Internal components (5 of 5) on page 467 Holder, cartridge
Table 8-20 Alphabetical parts list (continued) Description Part number Table and page Lower pick up guide assembly RM1-4980-000CN Internal components (3 of 5) on page 463 LVPS 110V RM1-5685-000CN PCAs on page 485 LVPS 220V RM1-5686-000CN PCAs on page 485 Main drive assembly kit CC468-67918 Internal components (5 of 5) on page 467 Motor/sensor cable assembly RM1-5752-000CN Internal components (2 of 5) on page 461 MP sensor cable assembly (duplex) RM1-5737-000CN Internal components (4 of 5
Table 8-20 Alphabetical parts list (continued) ENWW Description Part number Table and page Right door assembly (duplex) RM1-4957-000CN Right door assembly on page 457 Right door assembly (simplex) RM1-5005-000CN External covers, panels, and doors; on page 455 Right door assembly (simplex) RM1-5005-000CN Right door assembly on page 457 Right door rear hinge RC2-4895-000CN Internal components (4 of 5) on page 465 Roller assembly paper feeder (500 SF) CC468-67911 Paper feeder main body on pa
Table 8-20 Alphabetical parts list (continued) Description Part number Table and page Spring, compression RU6-2568-000CN Internal components (1 of 5) on page 459 Spring, compression RU6-2318-000CN Internal components (2 of 5) on page 461 Spring, compression RU6-2316-000CN Internal components (2 of 5) on page 461 Spring, ground RU6-2237-000CN Internal components (1 of 5) on page 459 Spring, leaf RC2-5970-000CN Internal components (2 of 5) on page 461 Spring, tension RU6-2236-000CN Interna
Table 8-20 Alphabetical parts list (continued) ENWW Description Part number Table and page Waste toner detect assembly RM1-5696-000CN Internal components (1 of 5) on page 459 Waste toner duct assembly RM1-4977-000CN Internal components (1 of 5) on page 459 Alphabetical parts list 499
Numerical parts list Table 8-21 Numerical parts list Part number Description Table and page CC468-67905 1 x 500 sheet feeder replacement kit 1 x 500 paper feeder on page 488 CC468-67906 1 x 500 sheet feeder right door kit 1 x 500 paper feeder on page 488 CC468-67907 ITB kit Internal components (3 of 5) on page 463 CC468-67910 Toner collection unit kit Internal components (1 of 5) on page 459 CC468-67911 Separation roller assembly (250 tray) Cassette on page 469 CC468-67911 Pickup roller (
Table 8-21 Numerical parts list (continued) ENWW Part number Description Table and page RC2-4413-000CN Shutter Internal components (2 of 5) on page 461 RC2-4415-000CN Lever, shutter Internal components (2 of 5) on page 461 RC2-4428-000CN Tab Internal components (2 of 5) on page 461 RC2-4780-000CN Seal, waste toner box Internal components (1 of 5) on page 459 RC2-4895-000CN Right door rear hinge Internal components (4 of 5) on page 465 RC2-4916-000CN Link, door stopper right Internal co
Table 8-21 Numerical parts list (continued) Part number Description Table and page RC2-5124-000CN Switch lever Internal components (3 of 5) on page 463 RC2-5416-000CN Drawer connector holder Paper feeder main body on page 490 RC2-5909-000CN Tab Internal components (2 of 5) on page 461 RC2-5910-000CN Shutter Internal components (2 of 5) on page 461 RC2-5912-000CN Cover Internal components (2 of 5) on page 461 RC2-5913-000CN Shaft Internal components (3 of 5) on page 463 RC2-5934-000CN S
Table 8-21 Numerical parts list (continued) ENWW Part number Description Table and page RK2-2506-000CN Scanner flat cable Internal components (4 of 5) on page 465 RK2-2508-000CN Scanner flat cable Internal components (4 of 5) on page 465 RL1-1914-000CN Cover, front inner lower Internal components (1 of 5) on page 459 RL1-1915-000CN Cover, front inner lower Internal components (1 of 5) on page 459 RL1-1923-000CN Base Internal components (2 of 5) on page 461 RL1-1941-000CN Tray, paper del
Table 8-21 Numerical parts list (continued) Part number Description Table and page RM1-4986-000CN Front door assembly External covers, panels, and doors; on page 455 RM1-4988-000CN Drum motor assembly Internal components (5 of 5) on page 467 RM1-5001-000CN Fusing (fixing) drive assembly with motor (simplex) Internal components (5 of 5) on page 467 RM1-5003-000CN Paper delivery assembly (simplex) Delivery assembly on page 479 RM1-5005-000CN Right door assembly (simplex) External covers, pane
Table 8-21 Numerical parts list (continued) ENWW Part number Description Table and page RM1-5730-000CN Duplexing unit cable assembly Internal components (5 of 5) on page 467 RM1-5731-000CN Pick up motor cable assembly Internal components (5 of 5) on page 467 RM1-5732-000CN Door switch assembly Internal components (3 of 5) on page 463 RM1-5737-000CN MP sensor cable assembly (duplex) Internal components (4 of 5) on page 465 RM1-5740-000CN Sensor cable assembly Internal components (2 of 5) o
Table 8-21 Numerical parts list (continued) Part number Description Table and page WG8-5696-000CN Photo interrupter, TLP1243 Internal components (3 of 5) on page 463 WG8-5696-000CN Photo interrupter, TLP1243 Internal components (5 of 5) on page 467 506 Chapter 8 Parts and diagrams ENWW
A ENWW Service and support ● Hewlett-Packard limited warranty statement ● HP's Premium Protection Warranty: LaserJet print cartridge limited warranty statement ● HP Color LaserJet Fuser Kit Limited Warranty Statement ● End User License Agreement ● Customer self-repair warranty service ● Customer support 507
Hewlett-Packard limited warranty statement HP PRODUCT DURATION OF LIMITED WARRANTY HP Color LaserJet CP3525, CP3525n, CP3525dn, CP3525x One-year on-site warranty HP warrants to you, the end-user customer, that HP hardware and accessories will be free from defects in materials and workmanship after the date of purchase, for the period specified above. If HP receives notice of such defects during the warranty period, HP will, at its option, either repair or replace products which prove to be defective.
HP's Premium Protection Warranty: LaserJet print cartridge limited warranty statement This HP product is warranted to be free from defects in materials and workmanship. This warranty does not apply to products that (a) have been refilled, refurbished, remanufactured or tampered with in any way, (b) experience problems resulting from misuse, improper storage, or operation outside of the published environmental specifications for the printer product or (c) exhibit wear from ordinary use.
HP Color LaserJet Fuser Kit Limited Warranty Statement This HP product is warranted to be free from defects in materials and workmanship until the printer provides a low-life indicator on the control panel.
End User License Agreement PLEASE READ CAREFULLY BEFORE USING THIS SOFTWARE PRODUCT: This End-User License Agreement (“EULA”) is a contract between (a) you (either an individual or the entity you represent) and (b) Hewlett-Packard Company (“HP”) that governs your use of the software product (“Software”). This EULA does not apply if there is a separate license agreement between you and HP or its suppliers for the Software, including a license agreement in online documentation.
Software will agree to this EULA. Upon transfer of the HP Software, your license is automatically terminated. b. Restrictions. You may not rent, lease or lend the HP Software or Use the HP Software for commercial timesharing or bureau use. You may not sublicense, assign or otherwise transfer the HP Software except as expressly provided in this EULA. 5. PROPRIETARY RIGHTS.
Customer self-repair warranty service HP products are designed with many Customer Self Repair (CSR) parts to minimize repair time and allow for greater flexibility in performing defective parts replacement. If during the diagnosis period, HP identifies that the repair can be accomplished by the use of a CSR part, HP will ship that part directly to you for replacement. There are two categories of CSR parts: 1) Parts for which customer self repair is mandatory.
Customer support Get telephone support, free during your warranty period, for your country/region Country/region phone numbers are on the flyer that was in the box with your product or at www.hp.com/support/. Have the product name, serial number, date of purchase, and problem description ready. Get 24-hour Internet support www.hp.com/support/cljcp3525 Get support for products used with a Macintosh computer www.hp.com/go/macosx Download software utilities, drivers, and electronic information www.hp.
B ENWW Product specifications ● Physical specifications ● Performance specifications ● Electrical specifications ● Acoustic specifications ● Environmental specifications ● Paper and print media specifications ● Skew specifications 515
Physical specifications Table B-1 Product dimensions Product Height Depth Width Weight HP Color LaserJet CP3525n 358 mm (14.1 in) 491 mm (19.3 in) 514 mm (20.2 in) 32.9 kg (72.5 lb) HP Color LaserJet CP3525dn 358 mm (14.1 in) 491 mm (19.3 in) 514 mm (20.2 in) 32.9 kg (72.5 lb) HP Color LaserJet CP3525x 520 mm (20.5 in) 491 mm (19.3 in) 514 mm (20.2 in) 40.5 kg (89.
Table B-4 Power consumption (average, in watts)1246 Product model Printing Ready Sleep 1 Sleep 2 Off HP Color LaserJet CP3525 models 643 W 60 W 35.1 W 10 W 0.48 W 1 Values subject to change. See www.hp.com/support/cljcp3525 for current information. 2 Power numbers are the highest values measured using all standard voltages. 3 Default time from Ready mode to Sleep 2 = 30 minutes. 4 Heat dissipation in Ready mode = 204.8 BTU/hour. 6 HP Color LaserJet CP3525 speed is 30 ppm Letter size.
Table B-6 Media registration and image placement accuracy (continued) First line / leading edge position 5.0 mm ± 2.0 mm 10.0 mm ± 3.0 mm Left margin accuracy 5.0 mm ± 2.0 mm 10 mm ± 2.5 mm Parallelism ≤ 0.75% N/A Image or text stretching - vertical ≤ 1.0 % N/A Image or text stretching - horizontal ≤ 1.0 % N/A Duplex registration - vertical, horizontal ≤ 2.0 mm N/A 1 Xerox 4024 (#20) should be used for measurement. 2 Performance for 4x6 media fed from Tray 3 using adapter is 1.
C ENWW Regulatory information ● FCC regulations ● Declaration of Conformity ● Certificate of volatility ● Safety statements 519
FCC regulations This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy. If this equipment is not installed and used in accordance with the instructions, it may cause harmful interference to radio communications.
Declaration of Conformity Declaration of Conformity according to ISO/IEC 17050–1 and EN 17050–1, DoC#: BOISB-0802-00-rel.1.
Certificate of volatility This is a statement of volatility regarding customer stored data in the memory devices of the HP Color LaserJet CP3525 Series printer. The product can have an optional HP High-Performance Secure Hard Disk either internally or as part of the EIO. Information on the hard disk will not be erased when the product is turned off. The product has 32 KB of NVRAM on the formatter and 32 KB of NVRAM on the interconnect board (ICB), which is used for page count and configuration information.
Safety statements Laser safety The Center for Devices and Radiological Health (CDRH) of the U.S. Food and Drug Administration has implemented regulations for laser products manufactured since August 1, 1976. Compliance is mandatory for products marketed in the United States. The device is certified as a “Class 1” laser product under the U.S. Department of Health and Human Services (DHHS) Radiation Performance Standard according to the Radiation Control for Health and Safety Act of 1968.
VAROITUS ! Laitteen käyttäminen muulla kuin käyttöohjeessa mainitulla tavalla saattaa altistaa käyttäjän turvallisuusluokan 1 ylittävälle näkymättömälle lasersäteilylle. VARNING ! Om apparaten används på annat sätt än i bruksanvisning specificerats, kan användaren utsättas för osynlig laserstrålning, som överskrider gränsen för laserklass 1. HUOLTO HP Color LaserJet CP3525, CP3525n, CP3525dn, CP3525x - kirjoittimen sisällä ei ole käyttäjän huollettavissa olevia kohteita.
Index Symbols/Numerics 500-sheet paper and heavy media tray models including 2 specifications, physical 515 A AC to DC conversion 113 accessories ordering 446 part numbers 447 screws 451 accessories installed, information 368 acoustic specifications 517 after-service checklist 166 anticounterfeit supplies 81 AppleTalk information 367 Attention light locating 10 automatic overhead transparency sensing 66 B bands, troubleshooting 433 beam-detect (BD) failure 120 bias generation high-voltage power supply 112
misregistration control 134 page count, reset 441 primary transfer roller state 131 troubleshooting 362, 435 components DC controller 107 diagnostic tests 341 diagrams of 343 duplexing unit 150 engine-control system 106 fuser 115 image formation, use during 121 intermediate transfer belt (ITB) 130 paper feeder 155 pickup, feed, and delivery 136 print cartridge 127 protection for 114, 116 configuration page 319 configuration pages information 368 printing 364 configurations, models 2 configure device menu 19
drawer connector drawer connector, removing 310 drive circuit power-supply frequency range 118 drivers paper types 47 duplex printing paper loading orientation 50 duplexer locating 6 Show Me How menu 14 specifications, physical 515 duplexing unit components 150 duplex-drive assembly, removing 308 motors 109 pickup operation 151 See also pickup, feed, and delivery duty cycle 3 E EIO cards buffer overflow 373 installing 92 part number 448 reset by NVRAM initialization 443 settings 32 electrical specifications
heaters, fuser 115 help, Show Me How menu 14 high-voltage power supply bias generation 112 circuits 112 operations 111 removing, lower 248 removing, upper 279 See also power supply HP Customer Care 514 HP Easy Printer Care opening 71 options 71 using 71 HP fraud hotline 81 HP Jetdirect print server configuration page 366 firmware updates 100 installing 92 lights 319 models including 2 HP Jetdirect print servers installing 92 HP Web Jetadmin firmware updates 99 humidity requirements 517 humidity values, prin
Tray 1 53 Tray 2 55 loading media configuring 50 locking control panel menus 79 log of events clear 396 messages, listed numerically 397 sample 396 view or print 395 loop control 147 loose toner, troubleshooting 435 low-voltage power supply converted DC voltages 113 failure detection 114 operations 113 protection for components 114 removing 243 safety provided by 114 stops and interruptions 113 See also power supply lower right door jams 414 M Macintosh support 514 main-drive assembly removing 287 manual pr
P pages blank 438 not printing 438 printing slowly 438 skewed 436 pages count from product refurbish date 441 reset 441 reset by NVRAM initialization 443 since last maintenance 368 See also counts pages per minute 3 paper cassette-presence detection 141, 157 custom sizes 46 default size reset 442 jam detection 161 level detection 143 load 53 loading orientation 50 loading Tray 3 59, 61 movement sensors 136, 152 multifeed prevention 160 presence detection 143, 159 Show Me How menu 14 size detection 157 stop
manual print modes 430 test 166 test pages 359 troubleshooting 432 Print Quality menu options 430 print server card installing 92 printer languages 4 printer settings configure 19 printing modes, manual 430 period in operation sequence 105 process explained 121 speed specifications 3 stop for testing 340 troubleshooting 438 printing from Tray 2 55 printing menu 19 problem-solving networks 36 processor speed 3 product info 1 product status HP Easy Printer Care 71 protocols, network 32 Proxy Server settings 3
security disk erase 78 encrypted hard disk 79 locking control panel menus 79 settings 32 security features 5 security lock locating 7 security settings information 366 sensor tests manual door (front and right) interlock switches sensor 332 duplex re-pickup sensor (E) 328 fuser delivery sensor 327 fuser pressure release sensor 329 loop sensors 326 output bin full sensor 328 primary transfer roller disengagement sensor 330 TOP sensor (A) 325 tray 1 media present sensor 334 tray 2 closed sensor 336 tray 2 pap
support embedded Web server links 76 online 514 supported media 44 switches DC controller 108 paper feeder 155, 157 paper-size, diagnostic test 334 pickup, feed, and delivery 136 system requirements embedded Web server 74 system setup menu 25 T TCP/IP information 366 TCP/IP settings 32 technical support online 514 temperature control for fuser 116 thresholds for fuser components 117 values, printed 362 temperature requirements 517 tests color band 368 component tests list and descriptions 341 disable cartri
V version, hardware firmware 366 vertical lines, troubleshooting 433 voltage detection DC controller 114 voltage specifications 516 W waiting period 105 warranty customer self repair 513 license 511 print cartridges 509 product 508 warranty date information 441 Web browser requirements embedded Web server 74 Web Jetadmin firmware updates 99 Web sites customer support 514 fraud reports 81 HP Web Jetadmin, downloading 77 Macintosh customer support 514 ordering supplies 446 white spots, troubleshooting 433 wri
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