C4256-90954
HP LaserJet 3100/3150 Product Service Manual
Copyright Information Warranty Trademark Credits © 2002 Hewlett-Packard Company The information contained in this document is subject to change without notice. JetSuite Pro Desktop for Hewlett-Packard is a trademark of JetFax, Inc. Hewlett-Packard makes no warranty of any kind with respect to this information. HEWLETT-PACKARD SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE Microsoft, Windows, and MS-DOS are U.S.
Contents 1 Product Information Chapter contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Product features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Product specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Model and serial numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4 Functional overview Chapter contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Basic functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Printer functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ECU/power system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Print engine control system . . . . . . . . . . . . . . . . . . . . . . . . . . . Power system (on ECU) . . . .
Internal assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LIU board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Formatter board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Metal side plate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Exit roller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Delivery assembly. . . . . . . . . . . . . . . . . . . . . . .
Paper curl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Paper path check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Troubleshooting tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Paper path and components. . . . . . . . . . . . . . . . . . . . . . . . . . Document path and components . . . . . . . . . . . . . . . . . . . . . . Repetitive image defect ruler . . . . . . . . . . . . . . . . . . . . . . . . .
Figures Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. Figure 8. Figure 9. Figure 10. Figure 11. Figure 12. Figure 13. Figure 14. Figure 15. Figure 16. Figure 17. Figure 18. Figure 19. Figure 20. Figure 21. Figure 22. Figure 23. Figure 24. Figure 25. Figure 26. Figure 27. Figure 28. Figure 29. Figure 30. Figure 31. Figure 32. Figure 33. Figure 34. Figure 35. Figure 36. Figure 37. Figure 38. Figure 39. Figure 40. Figure 41. EN Model and serial number label . . . . . . . . . . . . . .
Figure 42. Figure 43. Figure 44. Figure 45. Figure 46. Figure 47. Figure 48. Figure 49. Figure 50. Figure 51. Figure 52. Figure 53. Figure 54. Figure 55. Figure 56. Figure 57. Figure 58. Figure 59. Figure 60. Figure 61. Figure 62. Figure 63. Figure 64. Figure 65. Figure 66. Figure 67. Figure 68. Figure 69. Figure 70. Figure 71. Figure 72. Figure 73. Figure 74. Figure 75. Figure 76. Figure 77. Figure 78. Figure 79. Figure 80. Figure 81. Figure 82. Figure 83. Figure 84. Figure 85. Figure 86. Figure 87.
Figure 89. Figure 90. Figure 91. Figure 92. Figure 93. Figure 94. Figure 95. Figure 96. Figure 97. Figure 98. Figure 99. Figure 100. EN Printer door (1 of 2) . . . . . . . . . . . . . . . . . . . . . . . . . Printer door (2 of 2) . . . . . . . . . . . . . . . . . . . . . . . . . Document scanner assembly . . . . . . . . . . . . . . . . . Internal components (1 of 3) . . . . . . . . . . . . . . . . . . Internal components (2 of 3) . . . . . . . . . . . . . . . . . . Internal components (3 of 3) . . . . . .
10 EN
Tables Table 1. Table 2. Table 3. Table 4. Table 5. Table 6. Table 7. Table 8. Table 9. Table 10. Table 11. Table 12. Table 13. Table 14. Table 15. Table 16. Table 17. Table 18. Table 19. Table 20. Table 21. Table 22. Table 23. Table 24. Table 25. Table 26. Table 27. Table 28. Table 29. Table 30. Table 31. Table 32. Table 33. Table 34. Table 35. Table 36. Table 37. Table 38. Table 39. EN Product features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Physical specifications . . . . . . . . .
12 EN
1 Product Information Chapter contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Product features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Product specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Model and serial numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Product overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction The HP LaserJet 3100/3150 product is a powerful business tool with the capabilities of a full range of office equipment. With the HP LaserJet 3100/3150 product, you can: ● Print—Easily print documents with the laser quality you have come to expect from an HP LaserJet printer. ● Fax—Use the HP LaserJet 3100/3150 product as a standalone fax machine to send and receive faxes, as well as perform advanced tasks such as forwarding faxes to other locations.
Product features Table 1. Product features Feature Description Print speed 6 pages per minute (ppm) Copy speed 6 ppm Fax transmission speed 6 seconds per page Margins for scanned items 0.16 in (4.06 mm) at leading and trailing edges 0.12 in (3.05 mm) at sides Margins for printed pages 0.20 in (5.08 mm) at sides 0.25 in (6.
Product specifications Table 2. Physical specifications Category Specification Height 10.71 in (272 mm) without supports attached; 15.91 in (404 mm) with supports attached Depth 15.36 in (390 mm) without supports attached; 23.55 in (598 mm) with supports attached Width 15.12 in (384 mm) Weight (cartridge installed) 23.37 pounds (10.6 kilograms) Table 3.
Table 4. Power specifications Category Specification Power requirements 100 to 127 Volts alternating current (Vac) +/-10%; 50 to 60 hertz 220 to 240 Vac +/-10%; 50 hertz Power consumption (in continuous copy mode) 135 watts Power consumption (idle) 9 watts Minimum recommended circuit capacity 4.2 amps (110 volts) 2 amps (220 volts) (4.2 amps maximum pull) Table 5. Operating acoustical emissions (per ISO 9296) specifications Category Specification Sound Power Level, LWAd (1 bel = 10 decibels) 5.
Model and serial numbers The model number and serial number are listed on an identification label located on the back of the printer. z HP LaserJet 3100 product Model number C3948A z HP LaserJet 3150 product Model number C4256A The serial number contains information about the Country of Origin, the Revision Level, the Production Code, and production number of the HP LaserJet 3100/3150 product. The label also contains power rating and regulatory information.
Product overview 4 5 6 3 2 1 7 Figure 2.
4 5 3 6 7 5 2 1 Figure 3.
1 2 3 4 Figure 4.
2 3 1 4 Figure 5.
Regulatory information Safety Transportation Non-operating Magnetic Field Emissions, IATA Packaging Instructions 902 Laser safety statement 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. This printer is certified as a “Class 1” laser product under the U.S.
Laser statement for Finland Luokan 1 laserlaite Klass 1 Laser Apparat HP LaserJet 3100/3150 laserkirjoitin on käyttäjän kannalta turvallinen luokan 1 laserlaite. Normaalissa käytössä kirjoittimen suojakotelointi estää lasersäteen pääsyn laitteen ulkopuolelle.Laitteen turvallisuusluokka on määritetty standardin EN 60825-1 (1994) mukaisesti. Varoitus! Laitteen käyttäminen muulla kuin käyttöohjeessa mainitulla tavalla saattaa altistaa käyttäjän turvallisuusluokan 1 ylittävälle näkymättömälle lasersäteilylle.
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 is not installed and used in accordance with the instructions, it may cause harmful interference to radio communications.
This equipment uses the following USOC jacks: RJ11C An FCC-compliant telephone cord and modular plug is provided with this equipment. This equipment is designed to be connected to the telephone network or premises wiring using a compatible modular jack which is Part 68 compliant. This equipment cannot be used on telephone company-provided coin service. Connection to Party Line Service is subject to state tariffs.
Telephone consumer protection act (U.S.
IC CS-03 requirements NOTICE: The Industry Canada label identifies certified equipment. This certification means that the equipment meets certain telecommunications network protective, operational and safety requirements as prescribed in the appropriate Terminal Equipment Technical Requirement document(s). The Department does not guarantee the equipment will operate to the user’s satisfaction.
Declaration of conformity according to ISO/IEC Guide 22 and EN 45014 Manufacturer’s Name: Hewlett-Packard Company Manufacturer’s Address: 11311 Chinden Boulevard Boise, Idaho 83714-1021, USA declares, that the product Product Name: HP LaserJet 3100/3150 product Model Number: CxxxxA Product Options: ALL conforms to the following Product Specifications: Safety: IEC 950:1991+A1+A2+A3 / EN 60950:1992+A1+A2+A3 EN 41003:1993 IEC 825-1:1993 / EN 60825-1:1994 Class 1 (Laser/LED) EMC: CISPR 22:1993+A1 / E
Canadian DOC regulations Complies with Canadian EMC Class B requirements. Conforme á la classe B des normes canadiennes de compatibilité électromagnétiques. << CEM>>. Environmental product stewardship program Protecting the environment Hewlett-Packard Company is committed to providing quality products in an environmentally sound manner. This HP LaserJet printer has been designed with several attributes to minimize impacts on our environment.
Toner consumption Depending on the type of printer driver you have, you may be able to select a “draft” mode which uses about 50% less toner, thereby extending the life of the toner cartridge. This is only available using printer driver properties when printing or making copies from the software. Paper use Depending on the type of program you use, you may be able to print 2 or 4 document pages on each printed page.
For more information in the U.S. or Canada, call (1) (800) 340-2445 (U.S.) or (1) (800) 387-3867. Or, visit the HP LaserJet Supplies website at the following address: http://www.ljsupplies.com/planetpartners/ For more information in Mexico, call 258-40-44 (Mexico City) or (1) (800) 900-7200 (outside Mexico City). Or, visit the website at the following address: http://www.hp.
Spare parts and consumables availability Spare parts and consumable supplies for this product will be made available for at least five years after production has stopped.
Material safety data sheet The Material Safety Data Sheet (MSDS) can be obtained by contacting the fax-on-demand service in the HP LaserJet Supplies website at the following address: http://www.hp.com/go/msds If you do not have access to the internet, call U.S. HP FIRST at (800) 231-9300. After connecting, press 1. Then, request document number 10164. Non-U.S. customers should refer to the HP LaserJet 3150 product user guide for HP FIRST phone numbers and information.
2 Installation and operation Chapter contents Operating environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Media requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Toner cartridge information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating environment The environmental requirements listed below must be maintained to ensure the proper operation of the HP LaserJet 3100/3150 product. Table 7. Environmental requirements Category Requirement Operating (working or standby) Temperature: 59 to 90.5 degrees Fahrenheit (15 to 32.
Media requirements Media must be in good condition. Do not use media that is torn, worn, or irregular. The table below details media requirements of the HP LaserJet 3100/3150 product. Table 8. Media requirements Input for paper input bin and single-sheet input slot (for printer path) Media size Maximum: 8.5 by 14 in (216 by 356 mm) Minimum: 3 by 5 in (76.
Toner cartridge information Toner cartridges contain components that are sensitive to light, temperature, and humidity. Follow the recommendations in this section to ensure the highest quality and longest life of HP toner cartridges. Keep the HP LaserJet 3100/3150 product within the following environmental conditions for optimum performance. Storage conditions Toner cartridges are affected by their environment. Packaging protects toner cartridges from light and increases storage life.
Control panel 1 2 4 3 5 8 18 6 9 7 10 17 16 15 14 13 12 11 Figure 6. Control panel layout 1. Ready light 7. Forward arrow key 13. Speed-dial key 2. Error light 8. Stop/clear key 14. Redial/pause key 3. Control panel display 9. Copy key 15. Numeric keys 4. Enter/menu key 10. One-touch keys 16. Volume key 5. Backspace key 11. Start key 17. Resolution key 6. Back arrow key 12. Manual dial key 18.
Control panel messages These control panel messages are listed alphabetically, and are accompanied by the cause for the message and steps to take to resolve the problem. Table 9. Control panel messages Message Cause Solution (number) is a Group The group-dial code you entered is Group not Allowed assigned to a group, but a group cannot be dialed at this point. (Entries assigned as groups cannot be assigned into other groups.) Enter a different one-touch key or speed-dial code that is not assigned.
Table 9. Control panel messages Message Cause Solution Clear Document From Scanner Your document jammed while being fed through the document feeder tray or the HP LaserJet 3100/3150 product loaded multiple sheets of the document. Open the document release door, remove the jammed item, and then close the door. The special media lever was in the wrong Remove the jammed item as detailed position for the document you sent. above. Then, check the special media lever.
Table 9. Control panel messages Message Cause Solution Communication Error An error occurred while trying to transmit Try again to send the fax. a fax. Brief descriptions of communication Try to send the fax to another fax machine. errors are listed below: Make sure the telephone cord is securely connected. Then, check for a 60 no RTC at end of fax dial tone on the phone line by pressing 81 memory filled up MANUAL DIAL.
Table 9. Control panel messages Message Cause Solution Configuration Err # (number 1-4) An error was detected in the SRAM. Unplug the power cord from the power source, wait 10 seconds, and replug in the power cord. Try plugging the power cord into a different power source. If the error persists, see Chapter 6, “Troubleshooting.” Config. Stuck Addr In Service Mode only, SRAM stuck address test. Unplug the power cord from the power source, wait 10 seconds, and replug in the power cord.
Table 9. Control panel messages Message Cause Solution Fax Document was Lost Faxes in memory were lost as a result of a If you set up faxes to be sent at a future power failure. time or to be polled, or if the product was set to receive faxes to memory, print a fax log to identify the lost faxes. The lost faxes should be resent. Fax Memory Error #(number 1-5) An error was detected in DRAM. Unplug the power cord from the power source, wait 10 seconds, and replug in the power cord.
Table 9. Control panel messages Message Cause Memory Full - Send Unscanned Pages During the fax job the memory filled. All Reload the pages that were not sent pages of the fax have to be in memory for and send them. a fax job to work correctly. Only the pages that fit into memory were sent. Memory is Full The HP LaserJet 3100/3150 product memory was completely filled during a copy or a scan.
Table 9. Control panel messages Message Cause Solution No Memory for Report Erase/Print Document There is not enough memory to print a report because memory is being used to store faxes that have been received to memory. Print faxes that have been received to memory. There is not enough memory to print a report because memory is being used to store faxes set up to be sent at a future time or to be polled.
Table 9. Control panel messages Message Cause Solution Paper Bin is Empty Please Add Paper The paper input bin is empty. Load paper. If paper is already loaded, remove it. Check for and remove any jammed sheets and discard them. Then, reload the paper stack in the paper input bin. Password must be 4 An attempt was made to enter a password Re-enter four-digit password. Digits that was not four digits.
Table 9. Control panel messages Message Cause Polling-In Error The HP LaserJet 3100/3150 product tried Make sure that the sender’s fax machine to poll another fax machine. The poll failed is ready to be polled, and check the fax because there was no answer, the line number. Then, set up to poll again. was busy, or the other fax machine was not ready to be polled. Printer Comm Error There was an error in communicating with Make sure that the parallel cable is the HP LaserJet 3100/3150 product.
Table 9. Control panel messages Message Cause Printer is Busy The HP LaserJet 3100/3150 product is No action is needed. If you already temporarily unavailable for other types of started another job, such as you sent a printing (such as printing faxes or copies). copy job through the document feeder tray and it was scanned in or you requested a report to print, the job will be completed when the HP LaserJet 3100/3150 product becomes available.
Table 9. Control panel messages Message Cause Solution Redial Failed Attempts to redial a fax number failed. Try resending the fax. If the fax still fails to transmit, call the recipient to make sure that the fax machine is on and ready. Make sure that you are dialing the correct fax number. Disconnect the telephone cord from both the product and the wall outlet and then reconnect it. Press and hold down STOP/CLEAR for 7 seconds to check for a dial tone.
Table 9. Control panel messages Message Cause Solution Speed Dial (number) You tried to dial a speed-dial code that is not Assigned doesn’t have a fax number stored in it or you assigned a non-defined one-touch key to a group. Choose a speed-dial code to which you have already assigned a fax number. System Error An error has occurred. Unplug the power cord from the power source, wait 10 seconds, and replug in the power cord. Try connecting the product to a different power source.
Menu tree The following page shows the layout of the menu settings in a hierarchical diagram. You may want to refer to this menu tree before making changes to settings and features. To see the current settings, print a configuration report. Current settings are marked with an asterisk (*). The service menu and the extended service menu are discussed in Chapter 6, “Troubleshooting.” To print a menu tree 1 Press ENTER/MENU. 2 Use the < and > keys to select Reports and press ENTER/MENU.
Menu tree for the HP LaserJet 3100 product Use the < and > keys Press ENTER/ MENU to access to select one of the the Menu. choices below and press ENTER/MENU. Use the < and > keys to select one of the choices below and press ENTER/MENU. Use the < and > keys to select one of the choices below and press ENTER/ MENU, or see the display.
Menu tree for the HP LaserJet 3150 product Use the < and > keys Press ENTER/ MENU to access to select one of the the Menu. choices below and press ENTER/MENU. Use the < and > keys to select one of the choices below and press ENTER/MENU. Use the < and > keys to select one of the choices below and press ENTER/ MENU, or see the display.
3 Maintenance Chapter contents Life expectancies of consumables. . . . . . . . . . . . . . . . . . . . . . . . . . 56 Cleaning and maintaining the equipment . . . . . . . . . . . . . . . . . . . . 57 Cleaning the document scanner path . . . . . . . . . . . . . . . . . . . . . . . 58 Cleaning the print path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 Using a cleaning page. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Life expectancies of consumables Inspect the consumables when servicing the HP LaserJet 3100/3150. Replace consumables as needed, based on failures or wear, not strictly on usage. The following table lists approximate schedules for replacing consumables. Table 10. Life expectancies of consumables Description Part number Estimated life (pages) Remarks Toner cartridge (user replaceable) C3906A 2,500* When print becomes faint, redistribute toner in the cartridge.
Cleaning and maintaining the equipment WARNING! Before you perform these steps, unplug the printer to avoid shock hazard. To maintain quality, thoroughly clean the HP LaserJet 3100/3150 product: ● Any time a new toner cartridge is installed. ● After printing approximately 2,500 pages. ● Whenever print quality problems appear. Clean the outside of the printer with a slightly water-dampened cloth. Clean the inside with only a dry, lint-free cloth (such as lens tissues).
Cleaning the document scanner path 1 2 Clean parts of the document scanner if the ink on items you are scanning can be smudged with your hand, or if the parts have excessive amounts of dust or dirt on them. Also clean these parts if there are smudges, lines, or other marks on original documents, copies, or scans of documents. WARNING! Before cleaning the HP LaserJet 3100/ 3150 product, disconnect it from the power source. 1 Open the document release door.
4 5 6 4 Inspect each of the six rollers in the document scanner area for dirt or debris. Using a lint-free cloth dampened with a small amount of isopropyl alcohol, wipe any dirty rollers using a side-to-side motion. CAUTION Do not spray alcohol or any other liquid directly into the HP LaserJet 3100/3150 product. Doing so can damage the product. CAUTION As much as possible, avoid touching the white sheet and the glass surface with alcohol.
Cleaning the print path 1 Clean the print path to re-establish print quality if you frequently duplex or if you notice other marks on printed pages. WARNING! Before cleaning the HP LaserJet 3100/ 3150 product, disconnect it from the power source. 2 1 Clean the outside of the device with a slightly damp cloth (use only water). CAUTION Using ammonia-based cleaners on or around the HP LaserJet 3100/3150 product can damage it. 2 Use the two latches on the printer door to open it.
3 Note If toner gets on your clothing, wipe it off with a dry cloth and wash clothing in cold water. Hot water and the heat of the dryer set toner into the fabric. 3 4 5 Remove the toner cartridge. Note If you notice excessive amounts of toner inside the HP LaserJet 3100/3150 product, the toner cartridge may be defective. Use HP LaserJet toner cartridges to ensure high-quality printing and to reduce incidence of excessive toner. 4 Dab a lint-free cloth in isopropyl alcohol.
6 7 6 Scrub the exposed area (top and front) of the pickup roller using a side-to-side motion. Do not rotate the roller to clean the unexposed sides. 7 Using a dry, lint-free cloth, dry the exposed area of the pickup roller using a side-to-side motion. 8 After the alcohol inside the product has dried completely, replace the toner cartridge and close the printer door.
Using a cleaning page 1 After you have cleaned the printer parts, use this procedure to print and use a cleaning page, if needed. This cleaning page can help remove toner specks on your printed pages. To use a cleaning page 1 Place a stack of plain letter- or A4sized paper into the paper input bin. (Do not use thick or rough paper.) 2 For Windows 9x, open Windows Explorer. - Or For Windows 3.1x, open File Manager.
7 9 10 64 Maintenance 7 Place the cleaning page into the paper input bin, top first, face down. 8 Print a different file. 9 Inspect the page. If there are no shiny, black spots on the page’s black strip, the print path is clean. Discard the page, and the procedure has been completed. 10 If there are shiny, black spots on the page’s black strip, toner has been cleaned from the print path. Discard the page. Repeat steps 1 through 9 until there are no shiny, black spots on the page.
4 Functional overview Chapter contents Basic functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 Printer functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 ECU/power system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 Formatter system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 Image formation system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Basic functions This chapter presents a functional overview of the HP LaserJet 3100/ 3150 product’s processes.
Printer functions Printer functions are divided into four groups: ● engine control ● image formation ● printer laser/scanner ● pickup/feed The following figure is a block diagram of the printer unit: Figure 8.
ECU/power system The ECU coordinates all print engine activities, drives the laser, and coordinates print data from the formatter with the image formation process. The ECU also includes power supply and distribution circuitry.
Print engine control system Printer laser/scanner drive Based on information received from the formatter, the ECU sends signals to the laser/scanner assembly to modulate the laser diode “on” and “off” and to drive the laser/scanner motor. For more information, see “Image formation system” later in this chapter. Paper motion monitoring and control The ECU controls paper motion by continuously monitoring the various paper sensors and coordinating the timing with the other print processes.
Power system (on ECU) The AC, DC, and high-voltage power supply circuits are all contained within the ECU. AC power distribution The AC power circuitry supplies AC voltage whenever the power cord is connected to the AC power source. AC voltage is distributed to the DC power supply circuitry and to the AC driver circuitry, which controls AC voltage to the fusing assembly's heating element.
High-voltage power distribution The high-voltage power supply PCA applies an overlap of DC and AC voltage to the primary charging roller and the developing roller. This circuit also applies a positive or negative DC voltage to the transfer roller according to the instructions from the ECU. This circuit also controls the image density by changing the primary AC voltage and the developing AC bias according to the print density setting.
Formatter system The formatter is responsible for the following: ● controlling the document scanner ● formatting and controlling faxes ● formatting and controlling copies ● receiving and processing print data from the printer interface ● monitoring the control panel and relaying printer status information ● developing and coordinating data placement and timing with the print engine ● communicating with the host computer through the bidirectional interface The formatter receives print data from
Random-access memory (RAM) ● One bank of RAM, which is battery-backed, stores parameters. Another two banks of RAM are used for temporary storage. ● DRAM (Dynamic RAM) provides temporary storage of fax, copy, scan, and print data. Parallel interface The formatter receives incoming data through its bidirectional ECP interface.
Image formation system Laser printing requires the interaction of several different technologies (such as electronics, optics, and electrophotographics) to provide a printed page. Each process functions independently and must be coordinated with the other printer processes. Image formation consists of six processes: ● Step 1. Primary charging ● Step 2. Scanning exposure ● Step 3. Developing ● Step 4. Transferring ● Step 5. Separating ● Step 6. Drum cleaning Figure 11.
CAUTION The printer's toner cartridge does not include a light-blocking shutter. Be careful to avoid exposing the drum to light, which can permanently damage the drum. Protect the cartridge whenever removing it from the printer. Step 1: Primary charging This process consists of applying a uniform negative charge to the surface of the drum with the primary charging roller, located in the toner cartridge. The primary charging roller is coated with conductive rubber.
Step 4: Transferring During the transferring process, the toner image on the drum surface is transferred to the paper. A positive charge applied to the back of the paper by the transfer roller causes the negatively charged toner on the drum surface to be attracted to the paper. After separation, the drum is cleaned and conditioned for the next image. Step 5: Separating During the separating process, the paper separates from the drum.
Printer feed system Both the paper input bin and the single-sheet input slot merge into one, main input area. Paper placed in either of these areas enables the paper-out sensor (PS202), which informs the ECU that paper is present. When the printer receives a print job and is ready to print, the ECU enables the laser/scanner assembly and the motor. Paper motion begins when the ECU energizes solenoid SL1. This causes the paper pickup roller to rotate once. Two actions occur as a result of this rotation.
The following figure shows a simplified printer paper path. 1 2 3 4 5 6 7 8 9 10 11 12 Figure 12.
Paper jam detection The paper out sensor (PS202), paper registration sensor (PS203), and the paper exit sensor (PS201) detect paper moving through the HP LaserJet 3100/3150 product. If a paper jam is detected, the ECU immediately stops the printing process and displays a paper jam message on the control panel. A paper jam can be detected under any of the following conditions: EN ● Power-on jams. Paper is present under either PS201 or PS203 at power-on. ● Pickup jams.
Solenoid, photosensors, and switches The following figure shows the locations of the solenoid, photosensors, and switches. 1 2 3 4 5 6 7 8 Figure 13. Solenoid, photosensors, and switches 1 Pickup solenoid (SL1). Enables the pickup roller. 2 Paper registration sensor (PS203). Detects the leading and trailing edges of the paper. Synchronizes the photosensitive drum and the top of the paper. 3 Door open/cartridge sensor (SW101).
Document scanner system The document scanner system consists of the optical system and document pickup and feed systems. The optical system, also known as the contact image sensor, contains the following: ● light-emitting diode (LED) array ● contact glass ● rod lens array ● phototransistor array The LED array, which emits light from two types of LEDs, is controlled by the formatter. The contact glass refracts the light to documents.
The following figure shows a simplified Document scanner document path. 1 2 3 4 5 6 Figure 14.
Basic sequence of operation (formatter-to-printer) The formatter and the ECU share information during printer operation. The ECU-to-formatter connector (J201) forms a link which operates as a serial data bus. This allows printer status, command information, and dot-image data to be passed between the two. The following events take place during normal printer operation: Table 12. Timing Period Purpose WAIT (WAIT period) From power ON to the end of the initial rotation of the main motor.
Figure 15.
5 Removal and replacement Chapter contents Removal and replacement strategy . . . . . . . . . . . . . . . . . . . . . . . . . 86 Required tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88 Document scanner assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 Internal assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal and replacement strategy This chapter documents removal and replacement of field replaceable units (FRUs) only. Replacement is generally the reverse of removal. Occasionally, notes are included to provide direction for difficult or critical replacement procedures. WARNING! Unplug the power cord from the power outlet before attempting to service the HP LaserJet 3100/3150 product. If this warning is not followed, severe injury can result.
Before performing service . . . Print internal reports. Remove all media from the product. Unplug all cables from the product, beginning with the power cable. Place the product on an ESD mat. Remove all supports and bins. Remove the toner cartridge. After completing service . . . Restore the country code softswitch for the appropriate country. Make sure the latest firmware is installed on the product. Restore customer configuration settings.
Covers Back cover 1 Unplug the power cord and phone cord(s) and remove the parallel cable from the back of the printer. 2 Remove all supports and bins. 3 Press the printer door release latches and open the printer door. 4 Remove the toner cartridge. 5 Rotate the HP LaserJet 3100/3150 product so that you face the back of the product. 6 Remove the four (4) screws (callout 1) from the back cover. 2 1 Figure 16.
7 Insert the small flatblade screwdriver into the openings (callout 1) at the top of the back cover to pop the upper corners. 2 1 Figure 17. Back cover removal (2 of 2) 8 Remove the back cover by grabbing it on both sides and pulling it away. To reinstall After placing the back cover in its correct position, squeeze the back cover and the paper input tray together to secure the back cover.
Right side cover 1 Remove the back cover. 2 Rotate the HP LaserJet 3100/3150 product so that you face its right side. 3 Remove one (1) screw (callout 1) from the top of the right side cover. 2 1 Figure 18. Right side cover removal 4 Pop the latches at the top of the cover. 5 Remove the cover by lifting it up and off the latches at the bottom of the cover. To reinstall Attach the cover at the bottom latches before repositioning the cover.
Left side cover 1 Remove the back cover. 2 Rotate the HP LaserJet 3100/3150 product so that you face the back of the product. 3 Pop the latches at the top and bottom (callout 1), at the back of the product. 2 2 1 Figure 19. Left side cover removal 4 Remove the left side cover by rotating it away from and toward the front of the product. The I/O bezel (callout 2) separates from the left side cover as the cover is removed.
Left front cover 1 Remove the back cover and the left side cover. 2 Rotate the HP LaserJet 3100/3150 product so that you face its left side. 3 Remove the pressure release lever cover by inserting the small flatblade screwdriver into the slot (callout 1) to release the latch, and then pressing up from the left side of the product. 4 Remove one (1) screw (callout 2) from the top of the left front cover. 2 1 2 Figure 20.
Top cover 1 Remove the back cover, the right side cover, the left side cover, and the left front cover. 2 Remove one (1) screw (callout 1) from the top of the top cover. 2 1 Figure 21. Top cover removal EN 3 Lift the top cover off the product. 4 Lift the input bin straight up and away from the product.
RFI shield CAUTION 1 Remove all covers. 2 Remove four (4) screws (callout 1) from the RFI shield. When step 3 below is performed, all memory is cleared from the formatter, including country-specific settings. Clearing memory can render the product illegal or inoperable. See the section in Chapter 6, “Troubleshooting,” about softswitches to restore the country code. 3 Remove the fifth screw (callout 2) from the RFI shield. 2 3 2 1 2 Figure 22.
Document scanner assemblies Printer door 1 Press the printer door release latches and open the printer door. 2 Remove all covers and the RFI shield. 3 Pull the four (4) cables (callout 1) from the connectors aligned vertically along the right side of the formatter board, and then open tie-wrap that holds all four cables to release the cables. 4 Remove the three (3) grounding screws (callout 2). 2 2 1 Figure 23.
5 Remove the printer door cable guide (callout 1) by rocking it free and lifting it out. 6 Remove the spacer (callout 2) by releasing the latch at one end and then lifting it out. 2 1 2 Figure 24.
7 Rotate the HP LaserJet 3100/3150 product so that you face the front. Tabs on the printer door hinge covers prevent the hinge covers from becoming dislodged. The tabs flex inward (toward the middle of the product) to release the hinge covers. 8 Beginning with the left hinge cover, use the small flatblade screwdriver to pry the tab inward. 9 When the hinge cover is released from the printer door, rotate the hinge cover up and then slide it off the hinge. Figure 25.
Document release door Note Although it is possible to separate the document release door from the printer door without opening or removing the printer door, HP recommends that you remove the printer door before replacing components of the document release door. 1 Remove the printer door from the HP LaserJet 3100/3150 product. 2 Release the interlocks (callout 1) on each side of the document release door and lift open the door (callout 2). 2 2 1 Figure 26.
4 To release the right hinge of the document release door from the printer door, use one hand to simultaneously press the right side of the document release door toward the left and pull the printer door frame to the right. Figure 27. Document release door removal (2 of 2) 5 EN Lift out the right side of the document release door, and then slide it to the right to release the left hinge.
Upper guide assembly 1 Remove the three (3) screws (callout 1) from the upper guide assembly. 2 On some HP LaserJet 3100 products, there is a fourth screw (callout 2) to remove. 3 Lift up and rotate the assembly toward you. 2 2 1 Figure 28.
4 Remove the screw (callout 1) from one of the small printed circuit boards. 5 On all HP LaserJet 3150 products and on some HP LaserJet 3100 products, there is an additional screw (callout 2) to remove. 6 Release two (2) cables (callout 3) from their connectors, one on each of the small printed circuit boards. 2 1 2 3 2 Figure 29. Upper guide assembly removal (2 of 2) To reinstall Make sure that the assembly is inserted correctly into the three notches.
Contact image sensor 1 Remove the document scanner guide by lifting it up while pressing the two tabs at the left side of the assembly. Figure 30.
2 Release the contact image sensor and its mounting plate by removing the two (2) screws (callout 1) from the mounting plate. 2 1 Figure 31. Contact image sensor removal (2 of 2) Note EN 3 Lift up the contact image sensor and its mounting plate together. 4 Remove the grounding screw and the cable from the bottom of the contact image sensor. Clean the scanner glass after the contact image sensor is reinstalled.
Document scanner assembly/motor 1 Remove the document scanner guide by lifting it up while pressing the two tabs at the left side of the assembly (see Figure 30). 2 Remove the two (2) screws (callout 1) from the document scanner assembly. 2 1 Figure 32. Document scanner assembly/motor removal (1 of 2) 3 Use firm pressure to lift the document scanner assembly while sliding it in the direction of the input bins to release the document scanner assembly.
The scanner motor is located on the left side of the document scanner assembly. 4 Remove the two (2) screws (callout 1) from the document scanner motor. 2 1 Figure 33. Document scanner assembly/motor removal (2 of 2) 5 Lift the document scanner motor straight out. To reinstall Reinstall the document scanner motor to the same position as before its removal. If the motor is not reinstalled to the same position, the cables might not reach their connectors.
Document scanner pickup roller It is possible to remove the document scanner pickup roller without removing the document release door. However, the steps below detail pickup roller removal with the assumption that the document release door has already been removed. 1 Remove the document scanner guide by lifting it up while pressing the two tabs at the left side of the assembly (see Figure 30). 2 Use the small flatblade screwdriver to pry the right end of the pickup roller shaft from its plastic mounting.
Internal assemblies LIU board Note 1 Remove the back cover. 2 Pull out slightly the connector for the flat, flexible cable (callout 1) to release the cable and disconnect the cable from the LIU board. The flat, flexible cable must be reinstalled to the same orientation. Examine the cable and make notes about its orientation to make sure that you reinstall it correctly. 3 Remove the three (3) screws (callout 2) from the LIU board. . 2 1 2 Figure 35.
Formatter board Note 1 Remove all covers and the RFI shield. 2 If the LIU board has not been removed from the product, pull out slightly the connector for the flat, flexible cable (callout 1) at the left side of the formatter board to release the cable, and then disconnect the cable from the formatter board. 3 Pull out slightly the connector for the flat, flexible cable (callout 2) at the bottom of the formatter board to release the cable, and then disconnect the cable from the formatter board.
4 Pull the four (4) cables from the connectors (callout 1) aligned vertically along the right side of the formatter board, and then open the tie-wrap that holds all four cables to release the cables. 5 Remove the remaining screw from the formatter board (callout 2). 2 2 1 Figure 37. Formatter board removal (2 of 2) 6 Remove the formatter board by lifting it up and off the hooks. CAUTION Placing the formatter board on a conductive surface can damage the board.
Metal side plate Note 1 Remove all covers, the LIU board, the RFI shield, and the formatter board. 2 Remove the two (2) screws (callout 1) from the grounding plate and lift the grounding plate from the product. 3 Remove the three (3) grounding screws (callout 2). Upon reinstallation, make sure that you reinstall the grounding wires to their correct locations. 4 Release the cable guide from the frame (callout 3). 5 Remove the remaining two (2) screws (callout 4) from the metal side plate.
Exit roller 1 Remove all covers, the RFI shield, and the printer door. 2 Pry in the tab at the lower end of the left exit roller bushing and pull it inward. 3 Release the exit roller by rotating the tab up. Figure 39. Exit roller removal 4 EN Remove the exit roller by lifting up the left end; the right end follows easily.
Delivery assembly 1 Remove all covers, the RFI shield, the printer door, and the exit roller. 2 Remove the cartridge guide by pressing in the tab (callout 1) and sliding the guide toward the front of the HP LaserJet 3100/3150 product (callout 2). 2 2 1 Figure 40.
3 Use the magnetic screwdriver to remove the two (2) screws (callout 1). 2 1 Figure 41. Delivery assembly removal (2 of 2) 4 Note EN Rotate the rear of the delivery assembly up and forward and lift it out of the printer. Upon reinstallation, the tabs on the front end of the delivery assembly must fit under the sheet metal fuser plate below to correctly reseat the delivery assembly.
Fuser pressure plate 1 Remove all covers, the RFI shield, the printer door, the exit roller, and the delivery assembly. 2 Remove the two (2) screws (callout 1). 3 Press the fuser plate retainer clips out (callout 2) to release the pressure plate. 4 Rotate the plate around and toward the back (callout 3) and lift up to remove it. 2 2 3 2 1 Figure 42.
To reinstall The fuser pressure plate is held in place by four locking mechanisms in each corner. Place the rear slits in the plate over the rear brackets that hold the fusing assembly (callout 1). Lower the plate over the retaining clips, pressing on both sides of the fuser pressure plate (callout 2). It is important that the spring is placed over the positioning pin (callout 3) because inadequate pressure will cause fusing problems. Replace the screws. Figure 43.
Front casing Note 1 Remove all covers, the RFI shield, and the printer door. 2 Remove the two (2) screws (callout 1) from the right hinge holder. The lower screw on each of the hinge holders secures a small metal grounding plate. Upon reinstallation, make sure the grounding plates are in the correct position. 2 1 Figure 44. Front casing removal 3 Lift the right hinge holder from the frame. 4 Repeat the procedure to remove the left hinge holder.
Heating element 1 Remove all covers, the RFI shield, the printer door, the exit roller, the delivery assembly, the fuser pressure plate, and the front casing. 2 Disconnect the AC voltage to the heating element by releasing the connector located on the ECU. Press down on the connector release with the small flatblade screwdriver (callout 1). (Because this is a small space, it is much easier to reach the connector with a screwdriver.) Pull the connector straight out (callout 2). 2 1 2 Figure 45.
4 Disconnect the thermistor feedback connector (callout 1) in the left, front side of the fusing assembly. 2 1 Figure 46. Heating element removal (2 of 2) 5 Lift the heating element out. To reinstall Make sure the connectors are properly reattached and that the thermistor feedback cable is routed behind the face-up/face-down lever.
Pressure roller 1 Remove all covers, the RFI shield, the printer door, the exit roller, the delivery assembly, the fuser pressure plate, the front casing, and the heating element. 2 Remove the pressure roller guide by lifting the edge (callout 1) and then rolling it gently backward (callout 2). 2 1 2 Figure 47. Pressure roller guide removal 3 Note The right end of the pressure roller is greased. 4 Note EN Lift the right end of the pressure roller up and out of the printer chassis.
Face-up/face-down lever 1 Remove all covers, the RFI shield, the printer door, the exit roller, the delivery assembly, the fuser pressure plate, the front casing, the heating element, and the pressure roller. 2 Rotate the lever forward 90 degrees (past the spring) and pull it straight out the front of the printer. To reinstall 1 Make sure the lever arm is on the left and is initially pointing downward. 2 Pull the spring forward using needlenose pliers.
Fuser exit roller assembly 1 Remove all covers, the RFI shield, the printer door, the exit roller, the delivery assembly, the fuser pressure plate, the front casing, the heating element, the pressure roller, and the face-up/facedown lever. 2 Remove the gear from the left end of the roller shaft by pressing down on the catching mechanism with the small flatblade screwdriver and pulling the gear away.
Paper exit sensor flag 1 Note Remove all covers, the RFI shield, the printer door, the exit roller, the delivery assembly, and fuser pressure plate. Before proceeding, examine the paper exit sensor flag. It is important to note the position of the spring mechanism on the flag. The spring must be reinstalled to exactly this position, because installing it incorrectly will cause a control panel error message.
Laser/scanner assembly Note 1 Remove all covers. 2 Remove both laser/scanner connectors. 3 Remove the four (4) screws (callout 1). 4 Lift the assembly straight off. One of the four screws is longer than the other three. Upon reinstallation, the longer screw must be replaced in its original location. 2 1 Figure 51.
Solenoid 1 Remove all covers, the RFI shield, the LIU board, the formatter board, and the metal side plate. 2 On the left side of the printer, remove the paper pickup gear (callout 1) by pressing the tabs in the center of the gear outward and pulling the gear off. 2 1 Figure 52.
3 Remove the solenoid connector (callout 1) from the ECU. 4 Remove the self-tapping screw (callout 2) that holds the solenoid in place. 5 Unthread the wires from the printer chassis. 6 Lift the solenoid off. 2 1 2 Figure 53. Solenoid removal (2 of 2) To reinstall The paper pickup gear is keyed to go on the shaft in only one way.
Pickup roller assembly 1 Remove all covers, the RFI shield, the printer door, the LIU board, the formatter board, the metal side plate, and the paper pickup gear. 2 Remove the pickup roller grounding clip on the right of the printer by lifting each end of the clip up and over the two metal guides and sliding the clip off. Figure 54.
3 Using needlenose pliers, pull the bottom of the bushing out (callout 1), then turn it counterclockwise (callout 2) to release it. 2 2 1 Figure 55. Pickup roller assembly removal (2 of 2) Note EN 4 Lift the bushing out. 5 From inside the front of the printer, slide the right side of the pickup roller assembly forward, then lift the left side out. If you replace the pickup roller assembly, also replace the separation pad and subpads (order a separation pad and subpads under a single order number).
To reinstall After placing the pickup roller shaft through on the left side, line up the idler roller tabs while repositioning the right side. Rock the shaft back and forth until the pickup roller and the idler roller tabs are correctly reinstalled. Note It is important that the pickup roller is placed back in with the two idler roller tabs up, so that they fit into the underside of the metal chassis behind the laser/scanner assembly. Figure 56.
Paper feed frame 1 Remove all covers, the RFI shield, the printer door, the LIU board, the formatter board, the metal side plate, the paper pickup gear, and the pickup roller assembly. 2 Disconnect the following: • Solenoid from the ECU at J204 (see Figure 53, callout 1). • Two connectors from the laser/scanner and the connector from SW101 (callout 1). 2 1 Figure 57.
3 Remove the four (4) screws (callout 1) from the back sheet metal plate and lift it off. 4 Remove the four (4) screws (callout 2) from the paper feed frame. 2 2 1 2 Figure 58.
5 Release the sensor unit connector (callout 1). 2 1 Figure 59. Paper feed frame removal (3 of 3) 6 Verify that all cables are clear of the frame and pull the frame straight back to remove it. To reinstall The paper feed frame may be easier to reinstall if you place the printer on its front, so that you can apply pressure while putting the screws back in place.
Transfer roller guide and transfer roller 1 Remove all covers, the RFI shield, the printer door, the LIU board, the formatter board, the metal side plate, the paper pickup gear, the pickup roller assembly, and the paper feed frame. 2 Looking at the back of the printer, note the two small, hookshaped release tabs on each end of the transfer roller guide. Using the small flatblade screwdriver, carefully pry each tab outward to release it. 3 Roll the released portion of the guide up.
Kick plate CAUTION Be careful working with the kick plate and separation pad. The spring underneath the kick plate might stay attached to the kick plate, but it is also likely to spring away from the kick plate. Place the spring aside for separation pad disassembly. 1 Remove all covers, the RFI shield, the printer door, the LIU board, the formatter board, the metal side plate, the paper pickup gear, and the pickup roller assembly. 2 Press the separation pad.
To reinstall If the spring on the kick plate does not remain attached to the kick plate, replace the spring, making certain the diameter of the spring surrounds two lower pins on the kick plate and rests inside the third pin. Use needlenose pliers to place the spring correctly. Figure 62. Kick plate spring replacement While rotating the kick plate into place, guide the other end of the spring onto the silver grounding plate located on the paper feed frame.
Separation pad 1 Remove all covers, the RFI shield, the printer door, the LIU board, the formatter board, the metal side plate, the paper pickup gear, the pickup roller assembly, and the kick plate. 2 Lift the bottom of the white plastic tab (callout 1) on the rear of the paper feed frame up slightly and slide it up, toward the top of the paper feed frame. This will release the separation pad. 3 Lift the separation pad 90 degrees and slide its mounting pins out of their retainers. 2 1 Figure 63.
Subpads 1 Place your index finger on the subpad. 2 Press toward the top of the printer. Figure 64. Subpad removal Note If you replace the subpads, also replace the pickup roller assembly and the separation pad. See the removal procedures for the separation pad on the previous page and also see Figure 96, “Paper pickup assembly,” in Chapter 7.
Feed assembly The feed assembly is located in the paper feed frame. 1 Remove all covers, the RFI shield, the printer door, the LIU board, the formatter board, the metal side plate, the paper pickup gear, the pickup roller assembly, and the paper feed frame. 2 Turn the paper feed frame upside down. 3 Remove the feed roller shaft by lifting the plastic tab up (callout 1) and sliding it out the side (callout 2) of the paper feed frame. 2 2 1 Figure 65.
4 Note Remove the self-tapping screw (callout 1) that holds the feed assembly in place. Before proceeding, examine the tabs and how they fit into their slots (callout 2). The tabs must be reinstalled to exactly this position. 5 Remove the feed assembly. 1 2 2 Figure 66.
6 Turn the feed assembly over and place it in one hand with the roller-side down. Pop one of the tabs on the other side and the feed roller should fall into your hand. Figure 67. Feed assembly removal (3 of 3) To reinstall Before securing the screw, ensure the tabs on the feed assembly are positioned in their slots on the paper feed frame. Failure to do so will cause paper feed problems.
Bottom assemblies Cable guide 1 Remove all covers, the RFI shield, the printer door, the LIU board, the formatter board, and the metal side plate. 2 Two tabs hold the cable guide on the printer chassis. Press each tab inward. 3 Pull the cable guide out. Figure 68.
Main Motor 1 Remove all covers, the RFI shield, the printer door, the LIU board, the formatter board, and the metal side plate. 2 Remove the motor connector (callout 1). 3 Remove two (2) motor screws (callout 2). 4 Lift the motor out. 2 1 2 Figure 69.
ECU Remove all covers, the RFI shield, the printer door, the LIU board, the formatter board, the metal side plate, and the front casing. 1 Disconnect the motor connector from the motor. 2 Release all connectors from the ECU. 3 Tip the printer on its top, with the front facing you. 4 Remove the five (5) screws (callout 1) from the bottom plate. One of the screws is a grounding screw. The location of the grounding screw is marked by a star etched into the bottom plate.
5 Lift the bottom plate and release the fusing assembly connector (callout 1). 2 1 Figure 71. ECU removal (2 of 4) 6 CAUTION EN Lift the bottom plate from the product and place it on its feet. Placing the ECU on a conductive surface can damage the unit. Place the ECU on an ESD mat.
7 Squeeze the speaker cover to release it from the bottom plate and lift it off the bottom plate. Figure 72.
Note In Figure 73 below, the photograph shows the ECU from an HP LaserJet 3150 product. Some HP LaserJet 3100 products do not contain the protective sheet (callout 1). 8 Remove the (7) remaining cables (callout 2). 9 Remove the screws (5) that secure the ECU to the bottom plate (callout 3). 2 3 2 2 1 2 2 3 Figure 73. ECU removal (4 of 4) 10 Remove the ECU by lifting gently on the side opposite the formatter, then sliding it out. Note EN When ordering, the ECU does not come with any cables.
Feet 1 Insert the small flatblade screwdriver into the foot to release the tab. 2 Lift off the foot. Figure 74.
6 Troubleshooting Chapter contents Basic troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148 Error messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152 Image formation troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . 157 Solving paper feed problems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165 Solving general software problems . . . . . . . . . . . . . . . . . . . . . . . . 169 Functional checks . .
Basic troubleshooting Verification steps Possible problems Is Power On successful? No power. When the product is connected to a grounded power source, the printer motor should rotate for approximately six seconds and the document scanner motor should rotate for approximately two seconds. Printer motor does not rotate. Solutions 1. Verify that the product is plugged in. 2. Verify that the power cable is functional. 3. Verify that FU102 on the ECU is not open. 4.
Verification steps Possible problems Solutions Is the product ready? The control panel should function without error messages. Control panel display an error message, such as “Encoding Error.” Consult the list of common messages later in this chapter to correct the error. Control panel is not functional. Verify that the control panel cable is seated into both the control panel at J9 and the formatter board at J3. If the cable is connected correctly, replace the control panel.
Verification steps Possible problems Is the copy function operational? Poor copy quality. Place the reports into the document scanner input bin and copy them to the printer. Reports should feed smoothly through the document scanner path and copies should print without print quality problems. Paper does not move smoothly through the document scanner path.
Verification steps Possible problems Solutions Does the product receive a fax? Use another fax machine to send a fax to the product. Too many telephone devices are plugged in, or telephone devices are not connected in the correct order. Make the HP LaserJet 3100/3150 product the only device on the telephone line and try again to receive the fax. Firmware is not current. Check the firmware version. See “Firmware and software downloads” later in this chapter.
Error messages These control panel messages are listed alphabetically and are accompanied by the cause for the message and steps to take to resolve the problem. Message Cause Solution Configuration Err # (number 1-4) An error was detected in the SRAM. Unplug the power cord from the power source, wait 10 seconds, and replug in the power cord. Try connecting the product to a different power source or surge protector. If the error persists, replace the formatter. Config.
Message Cause Solution Fax Memory Error #(number 1-5) An error was detected in DRAM. Unplug the power cord from the power source, wait 10 seconds, and replug in the power cord. Try connecting the product to a different power source or surge protector. If the error persists, replace the formatter. Keypad Test Failed In Service Mode only, the keypad test failed. Check the cabling connections and run the keypad test again. If the error persists, replace the control panel. Run the keypad test again.
Message Cause Printer Comm Error There was an error in communicating with Make sure that the parallel cable is the HP LaserJet 3100/3150 product. securely connected between the HP LaserJet 3100/3150 product and the computer. Use the clips to clip the cable to its connector. If the error persists, unplug the power cord from the power source for 10 seconds, and then replug it in. Try connecting the product to a different power source or surge protector.
Message Cause Solution Printer Laser Error Call for Service The printer door is open or has been damaged. Open the printer door and examine the door for damage. If the printer door is not damaged, close the door, making sure both of the release latches are closed correctly. A problem has occurred with the print engine. Check the cabling connections to the laser/scanner. If the error persists, unplug the power cord from the power source, wait 10 seconds, and replug in the power cord.
Message Cause Solution Scanner Error #1 An error has occurred in the document scanner. Press and hold down the STOP/CLEAR key for 7 seconds to reset the product. If the error persists, check the cabling connections. If the error persists, unplug the power cord from its power source for 10 seconds, and then replug it in. Try connecting the product to a different power source or surge protector. If none of these methods clears the error, replace the contact image sensor.
Image formation troubleshooting Check the toner cartridge Image formation defects are many times the result of toner cartridge problems. If there is any doubt, always replace the toner cartridge before troubleshooting image defects. Use the following checklist to ensure that the toner cartridge is still operable. Ensure that the toner cartridge is seated properly in place. Inspect the toner cartridge for remaining toner. Check the expiration date stamped on the toner cartridge box.
Solving image quality problems Use the following table to help solve problems with printed pages. See also “Solving paper feed problems” in this chapter. Problem Cause Parts of the page around the edges aren’t printing. The HP LaserJet 3100/3150 product To get the image to fit into this printable cannot print to the edge of the paper. The area, slightly reduce the size of the image. HP LaserJet 3100/3150 product has minimum margins on each edge of 0.25 in (6.4 mm).
Problem Cause Solution Print is faded or The toner cartridge is getting low on toner. you notice a block of vertically aligned white streaks, The HP LaserJet 3100/3150 product needs to be cleaned. or print is not faded, but vertical white stripes appear on the page. Redistribute the toner or replace the toner cartridge. See the appropriate sections of Chapter 3, “Maintenance.” The paper you are using does not meet HP’s paper specifications (for example, it is too moist or too rough).
Problem Cause Vertically-aligned The HP LaserJet 3100/3150 product black streaks or needs to be cleaned. smears appear on successive pages. The toner cartridge is damaged. Solution See the appropriate sections of Chapter 3, “Maintenance.” Replace the toner cartridge if maintenance procedures do not improve print quality. There is a problem in the heating element. Perform the “Heating element check,” which is discussed later in this chapter.
Problem Cause Solution Light character shadows or repetitive marks appear on the page. A roller is damaged. Use the “Repetitive image defect ruler” later in this chapter to determine which roller is damaged. Replace the roller. The HP LaserJet 3100/3150 product needs to be cleaned. See the appropriate sections of Chapter 3, “Maintenance.” If you are using transparencies, they do not meet HP’s specifications. Make sure that the media meets specifications detailed in HP’s media specifications guide.
Problem Cause Solution The page is completely black. The toner cartridge was improperly installed. Remove the cartridge and reinstall it. The toner cartridge is defective. Replace the toner cartridge. Discontinuities exist in the high-voltage contact points. Perform the “High-voltage power supply check,” which is discussed later in this chapter. There is a problem in the ECU or the laser/scanner. Follow the steps in “Basic troubleshooting” to isolate the problem.
Problem Cause Solution Blank pages print occasionally. Page length and margins are not set correctly for the paper size. If you are printing on small paper and your page is blank, try printing on larger paper to see where the image is printing. Adjust the margins accordingly. Your HP LaserJet 3100/3150 product is feeding two or more sheets of paper at a time because the paper is difficult to separate. Remove the paper from the paper input bin and align the edges of the paper.
Problem Cause Solution Scanned images There is ink, glue, white-out, or some have black dots or other substance on the contact image streaks in top and sensor. bottom margins. There is a problem in the contact image sensor. See the appropriate sections of Chapter 3, “Maintenance.” Scanned text is not The contrast, resolution, or brightness clear. needs to be adjusted before scanning.
Solving paper feed problems Use the following table to solve problems related to moving paper or documents through the HP LaserJet 3100/3150 product. Problem Cause Pages are coming Paper is curled or wrinkled when using the out curled or paper output bin. wrinkled from the HP LaserJet 3100/ Paper is not stored properly. 3150 product. Long pages stop feeding through the document scanner. Solution Use the front paper output slot by pushing the paper path lever to the lower position.
Problem Cause Solution Print is misaligned The paper input bin is overfilled. Remove some of the paper. on the page (skewed pages). The paper guides are not set correctly, are Be sure to center the paper with the broken, or are missing. guides. Verify that the guides are not adjusted too tightly or too loosely against the paper. Check for broken or missing paper guides and replace as necessary. The paper’s weight or surface finish does not meet HP’s specifications.
Problem Cause The HP LaserJet Paper guides are not adjusted properly. 3100/3150 product is feeding multiple sheets or jams frequently from the paper input bin or single-sheet input Paper was not removed from the paper slot. input bin before filling the bin. Solution Slide the guides against the sides of the stack in the paper input bin or against the single sheet in the single-sheet input slot to center the paper. Make sure the guides are not adjusted too tightly.
Problem Cause The HP LaserJet The special media lever is in the incorrect 3100/3150 product position. is feeding multiple sheets or jams frequently from the document feeder Guides are not adjusted properly. tray. Solution The special media lever should be to the left to send regular-weight documents. The lever should be to the right to send thick documents, which can only be loaded one page at a time. Remove the document from the document feeder tray. Straighten the item, then reinsert it.
Solving general software problems Use the following table to solve problems related to the software and problems that might occur when installing the software or changing settings manually. Problem Cause Solution On a computer such as a laptop that is regularly disconnected from the product, you receive the following message: “JetSuite Fax has detected that the HP LaserJet 3150 is switched off or is not connected to the computer.
Problem Cause Solution All programs except Systray The software did not install (Windows 95, 98, and Explorer should be closed. or NT4.0) To check in Windows 95 or 98, press CTRL+ALT+DELETE. If other programs are open, click one and click End Task. Repeat for all other open programs. Then, reinstall the software. To check in Windows NT 4.0, press CTRL+ALT+DELETE. On the Applications tab, if other programs are open, click one and click End Task. Repeat for all other open programs.
Problem Cause Solution When the product is connected to the network using an HP JetDirect print server, you receive this message: “JetSuite Fax has detected that the HP LaserJet 3150 is either switched off or is not connected to your computer.” The power cord is loose. Make sure the power cord is securely connected between the HP LaserJet 3150 product and the power source. Also, ensure the power cord for the HP JetDirect print server is securely connected to the power source.
Problem Cause Solution When the product is connected to the network using an HP JetDirect print server, you receive one of these messages: z “The configuration wizard did not find your HP LaserJet 3150 All in One on the network.” z “The configuration wizard was unable to find an All in One at the specified address.” z “The JetDirect model found at the specified address does not support All in One devices.
Functional checks Simple hardware test A simple test of the hardware is printing and copying the demonstration page. To perform the simple hardware test EN 1 At the product control panel, press VOLUME+CONTRAST simultaneously to print the demonstration page. 2 Copy the demonstration page by placing it in the document feeder tray, waiting for the product to load the page, and then pressing COPY.
Engine test The engine test is used to verify that the print engine is functioning correctly. The formatter is bypassed during an engine test, so the engine test is useful for isolating printer problems. The engine test prints vertical lines down the entire printable area of a page and is also useful for checking and adjusting registration. Engine test button location The engine test switch is accessible without removing the covers. It is located on the bottom of the HP LaserJet 3100/3150 product. .
Internal reports Use the control panel to print configuration reports, self-test reports, and demonstration pages. The configuration report shows the settings selected from the control panel. The self-test report contains results of the completed self-test, including modem speed, number of pages printed, and recent error messages. To print a configuration report 1 Press ENTER/MENU. 2 Use the < and > keys to select Reports and press ENTER/MENU.
Printing all reports at once When you print all reports at once, the following reports are printed: ● Fax activity report—recent faxes sent and received, and status ● Billing log (if enabled)—prints by billing code (HP LaserJet 3150 product only) ● Block fax list (if enabled)—fax numbers you have blocked (HP LaserJet 3150 product only) ● Transmission report—information about specific outgoing faxes ● Configuration report—current control panel settings, including the following sections: • System inf
Half-self test functional check The electrophotographic process can be subdivided into the following stages: ● Image formation stage (charges the drum and writes a latent image to the drum with the laser) ● Development stage (forms a toner image on the drum) ● Transfer stage (transfers the image to paper) ● Cleaning stage (removes excess toner from the drum) ● Fixing stage (applies heat and pressure to make the image on paper permanent) The purpose of the half-self test check is to determine which
Drum rotation functional check The photosensitive drum, located in the toner cartridge, must rotate for the print process to work. The photosensitive drum receives its drive from the main drive assembly. To verify that the drum is rotating: 1 Open the printer door. 2 Remove the toner cartridge. 3 Mark the drive gear on the cartridge with a felt-tipped marker. Note the position of the mark. 4 Install the toner cartridge and close the printer door.
Heating element check Note Note 1 Paper passes between the heating element and a soft pressure roller to fuse toner to the paper. To verify that the heating element is functioning correctly: 2 Unplug the HP LaserJet 3100/3150 product for at least ten minutes. 3 Verify that the thermistor connector (see Figure 46) is seated into both the printer chassis and J206 of the ECU. 4 Remove the heating element connector (see Figure 45) from the ECU.
High-voltage power supply check The high-voltage power supply PCA provides the necessary voltages for the electrophotographic processes. Checking the toner cartridge connection points Visually inspect the three connection points on the underside, right end of the toner cartridge: charging (callout 1), drum ground (callout 2), and developing roller (callout 3). If they are dirty or corroded, clean the connections, or, if they are damaged, replace the toner cartridge.
Checking the high-voltage connector assembly The assembly uses three spring-loaded pins to contact the toner cartridge: charging (callout 1), drum ground (callout 2), and developing roller (callout 3). Verify that the pins are not dirty or corroded and that the spring-loading action is functional. If the pins are dirty, clean them using alcohol only. If they are damaged, replace the high voltage connector assembly. 2 3 2 2 1 Figure 77.
Paper path check If paper is not being picked up or is not moving through the paper path, you may want to observe all of the paper motion activities. Overriding SW101 allows you to observe: ● Motor rotation ● Solenoid action ● Kick plate motion ● Paper pickup roller motion ● Drive roller, transfer roller, fuser roller and gear, and delivery roller motion To override SW101 1 Remove the covers. 2 Press SW101 (callout 1). 2 1 Figure 78.
Troubleshooting tools Paper path and components Figure 79.
Document path and components Formatter Figure 80.
Repetitive image defect ruler Figure 81.
Document scanner recalibration 2 If copies, items scanned to the computer, or faxes you send have vertical black or white lines running through them, recalibration might be necessary. Recalibrating the document scanner produces a calibration graph. Successful interpretation of the calibration graph is key to solving vertical black or white lines on scanned images.
10 12 6 If the vertical black or white line appears on the copy of the demonstration page, continue with steps 7 through 12 below. 7 On the control panel, press ENTER/ MENU. 8 Press < once to display Service and press ENTER/MENU. 9 Use the < and > keys to select Scan Correction and press ENTER/MENU. 10 Insert a blank, bright white piece of letter-sized paper into the document feeder tray. The HP LaserJet 3100/ 3150 product pulls the piece of paper through and then prints a calibration graph.
Main wiring ECU Figure 82.
Formatter Document Scanner Motor Figure 83.
Service menus Control panel service menu Use the control panel menu, under “service,” to set up remote servicing and to recalibrate the document scanner. The service portion of the control panel menu is shown below in a hierarchical diagram: Table 13. Control panel service menu Press ENTER/ MENU to access the control panel menu. Use the < and > keys to select “Service” and press ENTER/ MENU. Use the < and > keys to select one of the choices below and press ENTER/MENU.
Extended service menu Use the extended service mode to run various self-tests and to change softswitch settings, such as the country code softswitch setting. The following page shows the layout of the extended service menu settings in a hierarchical diagram.
Table 14. Extended service menu tree Press BACKSPACE#** to access the extended service menu. Use the < and > keys to select one of the choices below and press ENTER/MENU. Use the < and > keys to select one of the choices below and press ENTER/MENU. See the display for further instructions. Notes about some of the menu choices are shown below: Help T.30 protocol trace SRAM dump Scanner plots Log debug report Task stacks Translations Printer fonts Help prints a menu report for the product.
Self-test in extended service mode If you perform a self-test from the extended service menu, the printed report will also show firmware revision number and details. Note Print the internal reports before performing extended service mode tests. The reports contain a record of all settings and can assist you in restoring the product to its settings. The table below lists the tests that are performed during a self-test and the actions to take when tests fail: Table 15.
Other tests in extended service mode The chart below shows tests that can be performed in extended service mode and a brief explanation of each test: Table 16. Extended service mode tests Test Explanation Keypad test Tests all keypad keys by pressing in sequence. LCD test Tests the control panel display. Control panel test Tests the control panel lights Sensor states Shows current detector activation levels. The control panel display shows the percentage of time each detector is activated.
Reports in extended service mode The chart below shows reports that can be printed from extended service mode and a brief explanation of each report: Table 17. Extended service mode reports Report Explanation T.30 protocol trace Prints a report of the G3 protocol transmissions and receptions. See the section about fax trace reports later in this chapter for detailed information about the report. SRAM dump Prints SRAM address values in an address range you select.
Clear memory in extended service mode CAUTION Clearing memory clears all parameters, which can render the product illegal or inoperable. Print the internal reports before clearing memory in extended service mode. The reports contain a record of all settings and can assist you in restoring the product to its settings. To perform a system reset, use extended service mode to choose Memory/softswitch, and then choose Clear memory.
Softswitches Any time the RFI shield is removed from the product, or when softswitches are reset to defaults, the country code softswitch must be reset. Extended service mode allows you to change softswitches on the product. A softswitch is a set of one to eight bits (a sequence of eight 1's and 0's), as needed. See the software technical reference for a complete list of softswitches. To change the country code softswitch EN 1 Enter Backspace#** to access the extended service menu.
8 Use the keypad to enter the sequence that corresponds to the country/region in which the product is used, according to the table below: Table 18.
Firmware and software downloads Newer versions of the firmware and software for the HP LaserJet 3100/3150 product can be downloaded to the product from the following websites: ● http://www.hp.com/support/lj3100/ ● http://www.hp.com/support/lj3150/ After you connect to the site, click “Drivers and Software.” Locate and click the firmware or software you want to download, and then click “Download Now.
Hardware, software, and firmware compatibility The table below shows software and firmware compatibility with HP LaserJet 3100 and 3150 product formatters and control panels. Table 19. Hardware, software, and firmware compatibility and you have: LJ 3100 software with: LJ 3150 software with: If you have: with: 3100 firmware 3150 firmware 3100 firmware 3150 firmware LJ 3100 formatter LJ 3100 control panel Recommended configuration.
Fax trace report Use the control panel service menu to choose T.30 Protocol Trace and then select At the end of each call. Configure another fax machine, preferably another HP LaserJet 3100 or 3150 product, to the same (or similar) settings. Send a fax from the product or receive a fax to the product from the other fax machine. The fax trace report prints after the fax prints. Explanations of some of the report’s column heading follow: ● Start time is the time the fax begins.
Table 20.
Table 21.
Table 22.
Table 22.
Figure 84. Example of a successfully sent fax Note Phase A, call establishment, does not show up on a trace report. Phase C is the phase in which faxed pages are transferred.
Figure 85. Example of a successfully received fax Explanation of DBM -dBM values shown on the fax trace report are hexadecimal numbers. Convert the value to a base-10 number and then divide by 5 to check signal strength. Using the example above, where DBM=34: 34 (hex) = 52 (decimal) and 52/5 = 10.4 Assuming a negative value, -10.4 falls into the range of -10 to -43 (with -43 being a weak signal). -10.4 is, therefore, a strong signal.
208 Troubleshooting EN
7 Parts and diagrams Chapter contents How to use the parts lists and diagrams . . . . . . . . . . . . . . . . . . . . 210 Consumables and accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . 211 Common hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214 Alphabetical parts list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242 Numerical parts list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How to use the parts lists and diagrams The figures in this chapter illustrate the major subassemblies in the printer and their component parts. A table (material list) follows each exploded assembly diagram. Each table lists the reference designator, the associated part number for the item, and a description of the part. While looking for a part number, pay careful attention to the voltage listed in the description column to make sure that the part number selected is for the correct model of printer.
Consumables and accessories The following items are available through a local authorized HP dealer. To find a dealer near you (or if your dealer is temporarily out of stock), call the HP Customer Information Center at (800) 752-0900. Table 23.
Table 23. Consumables and accessories Item Product number Description Power cables 8120-6810 Power cable—Australia, New Zealand 8120-6811 Power cable—Austria, Belgium, Finland, France, Germany, Hungary, Italy, Netherlands, Norway, Poland, Russia, Spain, Sweden, Ukraine 8120-6812 Power cable—Canada, Mexico, U.S.
Ordering consumables The consumables and accessories listed in Table 23 may be ordered from Hewlett-Packard. The phone numbers are: ● U.S.: (800) 538-8787 ● Canada: (800) 387-3154 (Toronto: (516) 671-8383) ● United Kingdom: 0734-441212 ● Germany: 0130-3322 Contact a local HP Parts Coordinator for other local phone numbers. Parts that have no reference designator or part number are not field replacement parts and cannot be ordered through SMO.
Common hardware Table 24.
RG5-3484-070CN Paper pickup assembly RG5-3486-040CN Pickup roller assembly RG5-3452-000CN Transfer assembly RG5-3474-020CN Delivery assembly RG5-4771-000CN Document scanner assembly RG5-3475-040CN Separation guide assembly RG5-4768-000CN (LJ 3150) RG5-4221-000CN (LJ 3100) Upper guide assembly RG5-3485-030CN Feed assembly RG5-4769-000CN (LJ 3150) RG5-4241-000CN (LJ 3100) Control panel assembly Figure 86.
Figure 87.
Table 25.
Figure 88.
Table 26.
RG5-4768-000CN (3150) RG5-4221-000CN (3100) RG5-4769-000CN (3150) RG5-4241-000CN (3100) 22 RG5-4770-000CN (3150) RG5-4220-000CN (3100) 21 11 20 RG5-4771-000CN Figure 89.
Table 27.
Figure 90.
Table 28.
Figure 91.
Table 29. Document scanner assembly Reference Part number Description RG5-4771-000CN Document scanner assembly 1 RG5-4772-000CN Pickup roller assembly, document scanner 19 RH7-1376-000CN Motor, AC 1.
RG5-3484-070CN RG5-3486-040CN RG5-3474-020CN 21 22 16 25 Figure 92.
Table 30.
21 Figure 93.
Table 31. Internal components (2 of 3) Reference Part number Description 1 RY7-5005-000CN Gear kit #1 2 RB1-7288-020CN Bushing (2) 3 RB1-7105-000CN Pressure release lever 4 RB2-1632-000CN Gear support plate 5 RB1-7107-000CN Gear holder 6 RY7-5007-000CN Fuser release kit 7 RH7-1320-000CN Motor, DC 12V 8 RY7-5036-000CN Gear kit #2 16 RG5-3453-000CN Switch lever assembly 17 RF5-2367-000CN Exit roller Note: The Following two parts (ref.
RG5-3475-040CN 21 Figure 94.
Table 32.
Figure 95.
Table 33.
RG5-3486-040CN RG5-3485-030CN Figure 96.
Table 34.
Figure 97.
Table 35.
Figure 98.
Table 36.
Figure 99.
Table 37.
Alphabetical parts list Table 38.
Table 38.
Table 38.
Table 38.
Table 38.
Table 38.
Table 38.
Numerical parts list Table 39.
Table 39.
Table 39.
Table 39.
Table 39.
Table 39.
A Additional user notes Document scanner separation pad replacement The document scanner separation pad is a user-replacable part that is ordered as part of a kit for either the HP LaserJet 3100 product and HP LaserJet 3150 product.
How to replace the document scanner separation pad 1 Lift open the document release door. 2 Roatate the strap on the left side of the printer door to unhook the strap. 3 Grasp the separation pad and mylar sheet together (callout 1, below) and lift them straight away from the document release door. This action should also release the pad holder (callout 2). 2 2 1 Figure 100. Document scanner separation pad replacement 4 Press the new pad holder, with pad and mylar attached, into position.
Index A abbreviations, fax 204 AC power distribution 70 accessories and consumables availability 33 life expectancies 56 list 211 ordering 213 part numbers 56 replacement schedule 56 acoustical emissions 17 adjusting registration 174 amperage 17 appropriate responses, fax 203 assemblies cable guide 140 contact image sensor 102 delivery 112, 240 document release door 98 document scanner 104 document scanner motor 104 document scanner pickup roller 106 document scanner, illustration 225 electrical 233 exit ro
C cable guide assembly 140 cables parallel 22, 211 phone 22 power 22 Canadian requirements 28, 30 capacity circuit 17 document feeder tray 37 media input bin 37 output 37 paper output bin 37 cartridge sensor (SW101) 80 cartridges, toner.
covers back 88 illustrations 218, 220 left front 92 left side 91 part numbers and descriptions 219 RFI shield 94 right side 90 top 93 CPU (central processing unit) 72 crooked pages 166 curled pages 165 paper 181 Customer Information Center 211 customer support ordering parts 210 Support Materials Europe (SME) 210 Support Materials Organization (SMO) 210 cycle, duty printer 15 scanner 15 D damaged CD-ROM or floppy disks 170 dark faxes 158, 160 scanned images 158 date/time incorrect 46 invalid 44 setting 53,
draft mode 73 DRAM (dynamic random-access memory) 73 driver circuits 81 roller motion 182 dropouts in characters 162 drum rotation functional check 178 drum, photosensitive charging 75 cleaning process 76 troubleshooting 157 duty cycle printer 15 scanner 15 dynamic random-access memory (DRAM) 73 E ECP interface 73 ECU (engine controller unit) description 68 loads 68 edge of document sensor (PS802) 80 edge of paper, not printing to 158 electrical components illustration 233 part numbers and descriptions 233
feed assembly drive rollers 77 feed functions 67 feeder support, document 19 feeder tray, document 19 capacity 37 input media requirements 37 media input requirements 37 feeding problems 167, 168 feet assembly 146 fine resolution 16 Finland laser statement 24 firmware download 199 firmware version 195 fixing printer error 48 process 76 unit 78 flag, paper exit sensor 122 flash ROM (read-only memory) 72 floppy disks cannot read 170 damaged 170 formatter 72 front casing assembly 116 front paper output slot ca
kick plate assembly 133 motion 77, 182 spring 133 L label, product 18, 22 language setting 53, 54 laser safety statement 23, 24 laser/scanner assembly for printer 123 last rotation period 83 latches, printer door release 20 LCD characters test 194 LCD test 194 LED (light-emitting diode) array 81 levers face-up/face-down 78, 120 paper path 20 special media 19 life expectancies of consumables 56 light faxes 158, 160 printing 159 scanned images 158 light-emitting diode (LED) array 81 line interface unit (LIU)
O OCR (optical character recognition) troubleshooting 169 operating environment 36 optical system 81 ordering accessories and consumables 213 parts 210 output bin 21 bin capacity 37 document support 78 front paper 20 slot, document 19 support 19, 20 tray capacity 37 overcurrent 70 overview of processes 66 overvoltage 70 ozone production 30 P pads separation 56, 77, 135 sub 56, 77, 136 page cleaning 63 engine test 174 pages blank print 163 bottom cut off 162 completely black 162 crooked 166 curled or wrinkl
pickup rollers document scanner 106 estimated life 56 illustration 78 pickup/feed functions 67 plates fuser pressure 114 kick 77, 133, 182 metal side assembly 110 pliers required for servicing 87 polling error 48 ports EPP 170 not available 170 unidirectional 170 power AC distribution 70 cable connector 22 consumption 17 DC distribution 70 high-voltage distribution 71 interruptions 43 rating and regulatory information 18 requirements 17 shutoff switch 69 supply check 180 system description 68, 70 uninterrup
repetitive image defect ruler 185 marks on page 161 reports configuration 52, 175 extended service mode 195 fax log 53, 54 fax trace 201 internal 175 log debug 195 menu settings 52 phonebook 53, 54 printer fonts 195 self-test 53, 54 SRAM dump 195 T.
edge of document 80 image 57 location and function 80 paper exit 80 paper exit (PS201) 77, 79 paper out (PS202) 77, 79, 80 paper registration (PS203) 77, 79, 80 toner cartridge 80 separating process 76 separation guide assembly 238 separation pad assembly 135 separation pads description 77 estimated life 56 scanner 56 serial number 18, 22 service and support HP Customer Information Center 211 ordering parts 210 Support Materials Europe (SME) 210 Support Materials Organization (SMO) 210 settings lost due to
switches engine test (SW201) 69, 80 location and function 80 power shutoff 69 system error 51 T T.
V ventilation requirements 36 video controller 81 void areas on page 161 voltage distribution 70 high 71 over 70 power supply check 180 protection 70 volume default setting 53, 54 key on control panel 39 W wait period 83 warranty 32 wattage 17 weight media requirements 37 of unit 16 toner cartridge when full and empty 157 white areas on page 161 stripes on page 159 white reference summary 195 width of unit 16 wiring diagram 188 wrinkled pages 165 268 Index EN
Copyright© 2002 Hewlett-Packard Co. Printed in USA Manual Part No.
