SERVICE MANUAL All-in-one printer, scanner, and copier EPSON STYLUS Scan 2500 ® SEIJ99007
EPSON STYLUS Scan 2500 Revision A Notice: All rights reserved. No part of this manual may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SEIKO EPSON CORPORATION. The contents of this manual are subject to change without notice. All effort have been made to ensure the accuracy of the contents of this manual.
EPSON STYLUS Scan 2500 Revision A PRECAUTIONS There are cautionary notes throughout the text to help you avoid personal injury or equipment damage. W A R N IN G Signals a precaution which, if ignored, could result in serious or fatal personal injury. Great caution should be exercised in performing procedures preceded by a WARNING heading. C A U T IO N Signals a precaution which, if ignored, could result in damage to equipment.
EPSON STYLUS Scan 2500 Revision A PREFACE This manual describes basic functions, theory of electrical and mechanical operations, maintenance and repair procedures of EPSON STYLUS Scan 2500. The instructions and procedures included herein are intended for the experienced repair technicians, and attention should be given t o the precautions on the preceding page. The chapters are organized as follows: CHAPTER 1. “Product Description” Provides a general overview and specifications of the product.
EPSON STYLUS Scan 2500 Revision A Revision Status Revision Issued Date Description Revision A October 5, 1999 First release 5
EPSON STYLUS Scan 2500 Revision A 6
EPSON STYLUS Scan 2500 Revision A Contents Product Description Features ....................................................................................................... 10 General Specifications ............................................................................... 10 Local copy .............................................................................................. 10 Scan area................................................................................................
EPSON STYLUS Scan 2500 Printer Related Troubleshooting ............................................................... 65 Scanner Troubleshooting .......................................................................... 69 Revision A Adjustment Troubleshooting Motors and Sensors ...................................................... 73 Required Adjustments ............................................................................. 113 Adjustment Tools Required.........................................
CHAPTER 1 PRODUCT DESCRIPTION
EPSON Stylus Scan 2500 Revision A 1.1 Features 1.2 General Specifications The following specifications apply to the EPSON Stylus Scan 2500. 1.2.1 Local copy V High quality local copy Three color copy modes 1. Normal, Fine, and Photo Local copy Table 1-1. Local Copy Specifications “Photo quality copy by Photo paper” enabled Two B/W copy modes V V High speed local copy Normal B/W copy mode Max. 2.4 PPM (using “Memo” pattern) Normal color copy mode Max. 1.
EPSON Stylus Scan 2500 6. Printing paper size Normal paper Photo paper Revision A A4/Letter/A5/Executive Half letter/B5/A6/Index card 5x8”/8 x10”/Post card/Legal A4/ Letter/4x5”/Post card 1.2.2 Scan area PW RM LM Starting scan position (1st bit) Scanning Area Document edge (scale edge) Table 1-2.
EPSON Stylus Scan 2500 Revision A 1.2.3 Print area Table 1-3. Print Area Document PW RM LM Paper feed direction Printable Area TM PW PL LM RM TM BM A4 210mm 297mm at least 3mm at least 3mm at least 3mm at least 3mm Letter 216mm 279mm at least 3mm at least 3mm at least 3mm at least 3mm B5 182mm 257mm at least 3mm at least 3mm at least 3mm at least 3mm Legal 216mm 356mm at least 3mm at least 3mm at least 3mm at least 3mm PL BM Figure 1-2.
EPSON Stylus Scan 2500 Revision A 1.2.4 Printing V V V V 1.2.6 Control codes Print method Drop On Demand ink jet ESC/P Raster Nozzle configuration monochrome 144 nozzles (48 x 3 staggered) color 48 nozzles each (cyan, magenta, yellow) Epson Remote Command Print direction Bi-direction with logic seeking 1.2.7 Paper feed Print speed & printable columns Table 1-4. Character code Character pitch Printable columns LQ speed 10 CPI (Pica) 80 200 CPS 1.
EPSON Stylus Scan 2500 Revision A 1.2.8 Paper V LM size: A4 210(W) x 297mm (L) (8.3 x 11.7”) Letter 216 x 279mm (8.5 x 11.0”) B5 182 x 257mm (7.2 x 10.1”) Legal 216 x 356mm (8.5 x 14.0”) Statement 139.7 x 215.9mm (5.5 x 8.5”) Executive 184.2 x 266.7mm (7.25 x 10.5”) Photo paper 101.6 x 152.4mm (4 x 6”) thickness: 0.08~0.11mm (0.003~0.004”) weight: 64g/m2~90g/m2 (17~24lb.
EPSON Stylus Scan 2500 Revision A 1.2.9 Ink 2. 1.
EPSON Stylus Scan 2500 Revision A 1.3 Scanner Product type Flat-bed color image scanner Sub scan method Movement of scan head Photoelectric device Color CCD line sensor Max. scan area 8.5 x 11.7” (216 x 297mm) Max.
EPSON Stylus Scan 2500 Revision A 1.4 Common 1.4.2 Safety, EMC Safety UL1950 (UL) CSA C22.2 No. 950 (CSA) EN60950 (VDE) IEC950 (ROSTEST, PSB) EMC FCC Part15 Subpart B Class B CSA C108.8 Class B AS/NZS3548 Class B CISPR Pub22 Class B CNS13438 Class B 1.4.1 Electrical specifications Rated voltage AC 100~120V AC 220~240V Input voltage AC 100~120V ±10% AC 220~240V ±10% Rated current 0.7A 0.4A Rated frequency range 50~60 Hz Input frequency range 49.5~60.5 Hz Power consumption Approx.
EPSON Stylus Scan 2500 Revision A 1.4.3 Environmental conditions 1.4.
EPSON Stylus Scan 2500 Revision A 1.5 Interfaces This section is divided into printer and scanner interface specifications. See the following section for printer interface details or see “Scanner interfaces” on pag e22 for scanner interface details. 1.5.1 Printer Interface Packet Refer to the IEEE-1284 Standard for Data Delivery and Logical Channels for IEEE Std. 1284.4 Interface (Draft D1.
EPSON Stylus Scan 2500 Revision A USB PREVENTING DATA TRANSFER TIME-OUT OF HOSTS Standard :based on “Universal Serial Bus Specifications Revision 1.0” “Universal Serial Bus Device Class Definition for Printing Devices Version 1.0” Bit rate :12Mbps (Full speed device) Data encoding :NRZI Adaptable connector :USB series B Generally, hosts abandon data transfer to peripherals when a peripheral is continuously in the busy state for dozens of seconds.
EPSON Stylus Scan 2500 Revision A IEEE1284.4 PROTOCOL 1.5.2 Scanner interfaces The packet protocol described by IEEE1284.4 standard allows a device to carry on multiple exchanges or conversations which contain data and/or control information with another device at the same time across a single point-to-point link. The protocol is not, however, a device control language. It does provide basic transport-level flow control and multiplexing services.
EPSON Stylus Scan 2500 Revision A USB The scanner must support almost all standard device requests. The scanner does not support vendor specific requests. Any items not included in this manual and/or the user’s guide shall be in compliance with the Universal Serial Bus Specification Revision 1.0 Requests Configuration - the scanner supports the following configurations Table 1-8.
EPSON Stylus Scan 2500 Revision A 1.6 Control Panel Load/ Eject Printout Size button Darker/ Lighter Quality button Copies Copy button Stop/Clear button LCD Panel Hold for menu Cleaner Scan button Reduce/ Enlarge Return Item Error indicator B&W/Color button Operate indicator Figure 1-8. Control Panel S Table 1-10. Power-on functions 1.6.1 Buttons Button Table 1-9.
EPSON Stylus Scan 2500 Revision A 3. COPY BUTTON Status Displays the current Stylus Scan condition. Before performing a local-copy operation, you should understand how the LCD and control panel buttons work. The LCD displays: 1. Example: Scanner lamp is warming up Copy status Warm up Copy settings 4.
EPSON Stylus Scan 2500 Revision A Table 1-12. Copy button functions (cont.) Button Function Quality Sets copy quality • B&W Normal Fine • Color Normal Fine Photo Note: When Photo is selected, the LCD displays “Load Photo Paper”. Multiple copies • B&W 1-20 • Color 1-20 Increments by “1”, and increment speed increases if held for more than one second. • • • • Enlarge/ Reduce Selects reduce or enlarge Default = 100% First press = LED shows current status Multiple presses (within 5 sec.
EPSON Stylus Scan 2500 Revision A 1.6.2 Indicators and LCD Display Table 1-14. LCD display and LED indicators (cont.) Table 1-14.
EPSON Stylus Scan 2500 Revision A 1.6.3 Initialization Table 1-15. Initialization Operat Stand ing by PRINTER INITIALIZATION Operation There are three initialization methods. Power on Valid Valid Panel Reset Valid Valid Initialize by command Valid 1. Power-on (hardware) initialization The printer initializes when turned on or when it recognizes the cold-reset command (remote RS command). When the printer initializes, the following actions are performed. 2.
EPSON Stylus Scan 2500 Revision A SCANNER INITIALIZATION 1.7 Settings Menu There are three initialization methods. Enter the settings menu mode by holding down the Quality and B&W/Color buttons. Settings are saved when the power is turned off. 1. Hardware initialization Table 1-16. Settings Menu The scanner initializes when turned on. When the scanner initializes, the following actions are performed. 2.
EPSON Stylus Scan 2500 Revision A 1.8 Stylus Scan Errors MENUS 1. 2. Bottom Margin Determines the default bottom margin of 14mm or 3mm. PRINTER-SPECIFIC ERRORS Table 1-17. Printer-SPECIFIC errors Paper Size category Determines which paper size category is enabled; metric or US Metric = A4/B5/A6 US = Letter/Half Letter/5x8” Error Cause 3. Language Determines which language is used to display LCD messages; English/German/French/Italian/Spanish/Portuguese Ink out 4.
EPSON Stylus Scan 2500 Revision A 1.9 Options SCANNER-SPECIFIC ERRORS Table 1-18. Scanner-SPECIFIC errors Error Fatal error ADF paper jam Command error Cause Solution • The lamp is broken. • Stylus Scan turned on before the transportation screw was removed. • System breakdown. Turn off the Stylus Scan and turn it back on. If the error does not clear, service. (Disposition) Turn off the lamp and stop operation. Set bit 7 of the status byte. ADF fails to eject the document.
EPSON Stylus Scan 2500 Revision A 1.10 Physical Characteristics 1.10.1 Dimensions 212 x 517 x 413mm (HWD) (not including, extended parts, rubber parts, and the ASF projection) 1.10.
EPSON Stylus Scan 2500 Product Description Revision A Physical Characteristics 32
CHAPTER 2 OPERATING PRINCIPLES
EPSON Stylus Scan 2500 Revision A 2.1 General 2.2 Printer Mechanism Operation The main components of the EPSON Stylus Scan 2500 are the printer mechanism, scanner mechanism, and the following circuit boards Like previous EPSON Ink Jet printers such as the Stylus Color 740, the printer mechanism of the EPSON Stylus Scan 2500 does not have an exclusive mechanism to switch from paper feeding to pumping and back.
EPSON Stylus Scan 2500 PF motor pinion Disengage flag Revision A 73.6 Gear/Precision Gear ASF sensor Intermittent gear PF Motor Flushing section Detector wheel Loading shaft Star wheel Disengage flag 2.2.1 Printing Mechanism The basic principles of the printhead are the same as previous models; DropOn-Demand type MACH head method. You need to manually input the drive-voltage code (printed on top of the printhead) for the multi-layer piezo electric element.
EPSON Stylus Scan 2500 Revision A Nozzle selector Board Ink Out sensor actuators Needle Ink cartridge PZT (Piezo) unit Filter Nozzle plate Ink cavity Figure 2-2. Printhead Sectional Drawing Ink Out sensor actuators (x2) The Ink Out sensors (x2) detects whether or not an ink cartridge is installed according to the position of the Ink Out sensor actuator. When a cartridge is installed, the actuator is pushed down, which turns the shaft that is connected to the actuator.
EPSON Stylus Scan 2500 Revision A 2.2.2 Printing Process 2. The following figures show sectional drawings of the printhead in the normal and ejecting states. 1. Normal State: When no print signal is output, the PZT is in the normal, standby, state. Ink course Piezo unit Nozzles Ejecting State: When a print signal is sent from the MAIN board, the IC (Nozzle Selector) located on the printhead unit receives the data in 1-byte units.
EPSON Stylus Scan 2500 Revision A 2.2.3 Carriage Mechanism and Motor CR Motor Control for Each Mode The carriage mechanism moves the carriage back and forth according to the drive from the carriage motor. See Figure 2-6 on the next page. The carriage motor is a 4-phase, 200-pole, stepping motor and is driven by 2-2 phase, 1-2 phase, Double 1-2 phase, 2-Double 1-2 phase, and 4Double 1-2 phase drives.
EPSON Stylus Scan 2500 Revision A PLATEN GAP LEVER Timing belt Paper feed roller Paper eject rollers Paper guide (front) Home position sensor Carriage motor Carriage unit Forward (normal) position Platen Gap lever Rear (thick paper) position Parallelism adjust lever Figure 2-6. Carriage Mechanism with platen gap lever (Top view) As shown in Figure 2-6, the Platen Gap lever can be moved forward or back to adjust for the thickness of the paper.
EPSON Stylus Scan 2500 Revision A 2.2.4 Paper Feeding Mechanism The paper feeding process begins at the ASF, continues through the PF roller, and ends at the paper eject roller (and star-wheel gear). 1 The ASF unit, which is common with the Stylus COLOR 740 printers, is driven by the PF motor (stepping motor). Torque sent from this motor switches between the ASF unit and pump/PF roller depending on the position of the disengage lever (described later). 2 3 B 4 /B Figure 2-7.
EPSON Stylus Scan 2500 Revision A To the eject rollers: PF motor pinion gear (CCW rotation)→ Gear 73.6 → Combination gear (13.5, 308) → Spur gear (28) → Paper eject rollers NOTE: Above CCW rotation is mentioned viewing from the PF motor pinion gear side. Figure 2-8 shows a paper feeding mechanism block diagram, which includes the parts along the PF motor drive-transmission paths. Gear 73.6 PF Roller Paper Eject Roller Star Wheel Assy. PF motor Combination Gear13.5,30.8 Gear 28 Figure 2-8.
EPSON Stylus Scan 2500 Revision A MULTI-FEED PREVENTION MECHANISM Like the Stylus COLOR 740 ASF, the ASF built in the Stylus Scan has the multiple-paper-feeding-prevention mechanism to provide accurate and consistent paper feeding. This mechanism prevents a sheet of paper from falling from the paper set position into the paper path. A paper return lever in the mechanism pushes paper that may have fallen off back onto the hopper. After this motion is completed, the LD roller starts loading paper.
EPSON Stylus Scan 2500 Revision A SMALLER TRAILING-EDGE MARGIN Like the Stylus COLOR 740, this model uses a new design to allow printing up to the last 3mm by changing the design and position of the star-wheel gear. The star-wheel gear assembly has been shifted 5 degrees from directly on top of the eject rollers towards the front paper guide. This change suppresses the tailing edge of the paper so that the old minimum margin of 14mm has been reduced to only 3mm.
EPSON Stylus Scan 2500 Revision A The PF motor drive is sent to the CR Lock lever via the Paper Eject roller. CARRIAGE LOCK MECHANISM PF Motor pinion gear (CW rotation) → Gear 73.6 → Combination gear → The carriage lock mechanism prevents the carriage from being left at an uncapped position for a long time which can occur due to user mistakes, physical shock, vibration during transport, and so on. The CR lock mechanism is driven by the stepping PF motor.
EPSON Stylus Scan 2500 Revision A PAPER PICK-UP OPERATION When the Load/Eject switch is pressed or printing order is input, the carriage unit moves until the left edge and collides with paper pick up trigger lever. When the carriage collides with this trigger level, a planetary gear located on the same axis is also pushed at the same time and conveys the motive power on the platen to the adjoining gear line side for ASF drive. Combination gear 16,40.8 Gear 34/ ASF roller drive gear Spur 23.
EPSON Stylus Scan 2500 Revision A 2.2.5 Ink System Ink system mechanism consists of 1) cap mechanism, 2) pump mechanism, 3) carriage lock mechanism, 4) waste ink absorber and 5) ink sequence. Out of these mechanisms, 1) to 4) are physical mechanism and parts which are mounted on the printer mechanism and 5) the ink sequence is performed automatically by the firmware. The EPSON Stylus Scan 2500 has no engage/ disengage mechanism, meaning the pump and platen are always at work when the PF motor operates.
EPSON Stylus Scan 2500 Axis of Paper eject roller Revision A The table below shows PF/Pump motor rotational direction and pump system operation.
EPSON Stylus Scan 2500 Revision A Counter-Clockwise Revolution Clockwise Revolution Tube squeezed Tube released Figure 2-16. Pump Roller Rotation and it’s Operation Pumping modes Pump Mode Revolutions Absorption Low speed 0.38rev/second 0.06ml/second Regular absorption 1.3 rev/second 0.2ml/second High speed 2.6rev/second 0.4ml/second Super high speed 3.38rev/second 0.
EPSON Stylus Scan 2500 Revision A 2.2.7 Cap Mechanism Position A The cap mechanism prevents ink from thickening and sticking on the head surface when the printer is not in operation and it also plays a part in cleaning the printhead. During the power-off sequence, the printhead moves to the right where the head surface and cap come into contact, and the head surface contacts the rubber frame of the cap surface until the power is turned back on.
EPSON Stylus Scan 2500 Revision A 2.3 Scanner Principles This section explains the operating principles of the scanner mechanism. The scanner mechanism can be divided into the Carriage Unit and Carriage Operation. Inverter Board: This board provides voltage to drive the lamp. Lamp: A white cold fluorescent lamp is used as the light source. Mirror and Lens: The light emitted to the document reaches the CCD sensor after being reflected on some mirrors one after another.
EPSON Stylus Scan 2500 Revision A 2.3.2 Carriage Operation Scanning is performed in the main scan direction (=1 line) by the CCD sensor and in the sub-scan direction (=several lines) by the carriage movement. (See Figure 2-20.) The line-type, color CCD sensor can scan 1 line in main scan direction (parallel) to the carriage unit) by one time. When scanning next lines after the second line in sub-scan direction, CR driving moves the carriage unit, which has CCD sensor inside, and scan the other lines.
EPSON Stylus Scan 2500 Revision A 2.4 Local and PC Copy Principles 2.4.1 Local copy process Scan > gamma curve > color matching table > print This section covers the main differences between Local Copy and PC Copy operations. V V 1. The scanner scans at 300 or 600 dpi. Local Copy = Scan and print the scanned document using only the Stylus Scan processing power. Can be connected or not connected to a computer. 2.
EPSON Stylus Scan 2500 Revision A T 2.4.2 PC copy process PC Copy Settings Mode Setting Scan Res. dpi Print Res. dpi 4. The color matching table is consulted to convert RGB to CMYK. 5. The print resolution varies according to media type; same as Speed vs Quality slide bar in the printer driver. Media Normal 240 Speed All 2.4.2.2 Original color copy Fine 360 Quality All Normal 240 Speed All Original color copy does not process or enhance the scanned data.
EPSON Stylus Scan 2500 Revision A 2.5 Electrical Circuit Operating Principles B102 PSB/ PSE Board EPSON Stylus Scan 2500 contains the following three electric circuit boards. V Electronic Boards Main: Power Supply: Panel: for Stylus Color 2500 are; B102 Main Board B102 PSB/PSE Board B102 PNL Board +5V/ 3.3V DC +42V/ 24VDC AC Input +12VDC Refer to Figure 2-21 for the major connection of the 3 boards and their roles. B102 MAIN Board C VD C DC 4 /2 5VD 3.
EPSON Stylus Scan 2500 Revision A 2.5.1 B102 PSB/PSE Board The power supply board for the EPSON Stylus Scan 2500 generates +42VDC to drive the motors, +24VDC to drive the scanner and option, +12VDC to power the lamp, and +5VDC/+3.3VDC to power the printer logic. The table below shows application of voltages generated by PSB/PSE board. 1.
EPSON Stylus Scan 2500 Revision A SECONDARY SIDE +3.3V +42V Power signal from MAIN board/power switch +5V ZD53 +5V line over voltage limitation IC51 ZD91 +5V regulator +24V line over voltage limitation IC151 ZD52,87 +3.
EPSON Stylus Scan 2500 Revision A 1. As long as the AC power cable is plugged into a power source, voltage flows through the primary side (bottom in figure above) of the power supply board. 2. The fuse prevents damage to the power supply board in case the current is too strong. 3. The filter circuit acts to filter incoming electrical noise and to smoothen the electrical current. 4. The full wave rectifier circuit converts AC to DC. 5. The smoothing circuit stabilizes out the DC wave. 6.
EPSON Stylus Scan 2500 Revision A 1284 I/F CN3 USB CN1 Option IC9 USB hub 1284 Transceiver CN15 IC17 CN2 System & Scanner Block (See the B101 MAIN Board schematic in Chapter 7) Local Copy Block (See the B101 MAIN Board schematic in Chapter 7) 1284 Buttons Panel Unit Scan Mechani sm LED/LCD Printer Block (See the B101 MAIN Board schematic in Chapter 7) Print Mechanis m MAIN Board CN10 PSB/PSE Board Figure 2-23.
EPSON Stylus Scan 2500 V Revision A The System & Scanner Block The System & Scanner Block is all of the ICs that handle image data from the scanner. Also this block handles all control/communication signals sent to and from the Control Panel unit as well as any installed options. V The Printer Block The Printer Block is all the ICs that handle print data and communication data to and from the print mechanism.
CHAPTER 3 TROUBLESHOOTING
EPSON Stylus Scan 2500 Revision A 3.1 Unit Level Troubleshooting Table 3-1. Printer Condition and Panel Stat us When a problem occurs, you can identify the defective unit according to the symptoms exhibits. The table below lists the symptoms of certain problems. Once the problem is identified, refer to the flowchart that corresponds to the problem. The following flowchart illustrates the main steps of the troubleshooting process.
EPSON Stylus Scan 2500 Revision A 3.1.1 Printer/Scanner does not operate at power on Table 3-2. Symptoms and Problem s Symptom Problem Flowchart No. Printer does not operate at power on. LEDs do not light. Printer mechanism does not operate. Flowchart 3-1 Error is detected Error is indicated by LED indication. Flowchart 3-2 Failure occurs during printing. Printing is not performed. Abnormal printing (missing dot, etc.) Print quality is poor.
EPSON Stylus Scan 2500 Revision A 3.1.2 Error is detected 3.1.3 Failure occurs during printing Start Start Print a self test. Check the LCD message and refer to Table 3-1. No Is the problem carriage related? Yes Did it print properly? Turn off the Stylus Scan and move the carriage by hand. Yes No Does it move smoothly? Yes Replace the ink cartridge. Is it an ink cartridge error? Replace the waste ink pads and reset the counter. See Section 4.5.1 on page 92.
EPSON Stylus Scan 2500 Revision A 3.1.4 Printer does not feed paper correctly 3.1.5 Control panel operation is abnormal START Paper loaded correctly in ASF? START NO Control panel connected correctly? Set the paper correctly. YES PF roller and platen rotate? Connect the control panel correctly. NO NO Is the problem solved? Is the PF motor running? YES Remove any obstruction in the paper path if there is any. YES Check the PF motor. No problem = replace the MAIN board.
EPSON Stylus Scan 2500 Revision A 3.2 Printer Related Troubleshooting This section provides instruction for repairing the printer mechanism. It describes various problems, symptom, likely causes, checkpoints, and solutions. Select appropriate symptom from the table and check each parts and its function as described in the checkpoint. Table 3-3.
EPSON Stylus Scan 2500 Revision A Table 3-4. Repair of the Printer Mechanis m Symptom Condition Abnormal pump mechanism operation Abnormal PF motor operation when the power is turned on. Ink is not absorbed or is poorly absorbed. Used ink does not go through the waste ink tube. Cause Check Point Foreign substances are loaded in the PF gears. Manually drive the platen drive gear and Remove any foreign substances. check it if it rotates normally. The PF motor is defective.
EPSON Stylus Scan 2500 Revision A Table 3-4. Repair of the Printer Mechanism (cont.) Symptom Printing is not performed. Condition The carriage moves, but no printing is performed. Only a particular dot causes abnormal printing. Abnormal printing A dot is not printed occasionally. Cause Check Point Solution Head FFC is out of connection. Check if the head FFC on the board or carriage is connected surely. Connect the FFC properly. The FFC is disconnected inside. Check the FFC by using a tester.
EPSON Stylus Scan 2500 Revision A Table 3-4. Repair of the Printer Mechanism (cont.) Symptom Condition Cause A vertical line is not aligned. Bi-directional alignment is Perform Bi-D adjustment. not adjusted. Refer to Chapter4. Head angle is not correct. Perform head angle adjustment. Refer to Chapter4. Platen gap is not correct. Perform platen gap adjustment. Refer to Chapter4.
EPSON Stylus Scan 2500 Revision A Table 3-4. Repair of the Printer Mechanism (cont.) Symptom Condition Cause Check Point Solution ASF sensor is defective. Check the signal level of the ASF sensor. Replace ASF sensor. (Refer to Table 5-2) PE sensor is defective. Check the signal level of the PE sensor. (Refer to Table 5-2) HP sensor is defective. Check the signal level of the HP sensor. (Refer to Table 5-2.) Replace PE sensor. Printer stops during initialization.
EPSON Stylus Scan 2500 Revision A 3.3 Scanner Troubleshooting Table 3-6. Service Level Troubleshooting Starts Here This section describes troubleshooting from the abnormal phenomenon. You can isolate the faulty unit based on the abnormal phenomenon. See Table 3-6, “Service Level Troubleshooting Starts Here,” on page 69 to find the closest phenomenon and the corresponding table to refer to. Table 3-5.
EPSON Stylus Scan 2500 Revision A Table 3-7. Power problems (cont.) Cause Step The power board.is broken. 4 Connector CN4 on the power board is disconnected. 5 The control board is broken. 6 Checkpoint With the scanner On, check the voltage output level between pins 8/9(+) and pins 6/7(-) on the power board. Is the voltage +5VDC? Is the connector CN4 on the control board disconnected? --- Table 3-9. Carriage Unit does not operate Finding No Solution Replace the power board.
EPSON Stylus Scan 2500 Revision A Table 3-9. Carriage Unit does not operate (cont.) Cause CR Motor is broken Control board is broken. Step 3 4 Troubleshooting Checkpoint Finding Disconnect the connector CN6 on the control board, then using the tester, check the coil resistance between Pin2 and 4 and between Pin1 and 3. Is the resistance of 2 points about 6.2Ω? No If any motor coil is shorted, check the CR motor drive circuit in the order below. 1.)Set the tester on Ohms. 2.
EPSON Stylus Scan 2500 Revision A Table 3-14. Parallel Interface Error Table 3-12. Poor image quality Cause Step Checkpoint Finding Solution Mirror in the carriage unit is dirty. 1 Is the image scanned clearly after cleaning the mirror? No CCD sensor board is broken. 2 --- -- Replace the CCD board. Control board is broken. 3 --- --- Replace the control board. Clean the lamp surface. Table 3-13. SCSI Interface Error Cause Terminator switch is set wrong. SCSI setting is wrong.
EPSON Stylus Scan 2500 Revision A 3.4 Troubleshooting Motors and Sensors Table 3-16. Motor Resistance and Measurement Procedure Motor Name Location Check Point Resistance CR Motor CN7 (MAIN board *) Pins 1 & 3, Pins 2 & 4 7.8 Ohms ± 10% PF (Pump) Motor CN8 (MAIN board *) Pins 1 & 3, Pins 2 & 4 7.8 Ohms ± 10% Table 3-17. Sensor Check Sensor Name Location Signal Level Sensor Status Paper End Sensor CN5/Pins 1 & 2 Close: more than 2.
CHAPTER 4 DISASSEMBLY & ASSEMBLY
EPSON Stylus Scan 2500 Revision A 4.1 Overview 4.1.1 Precautions for Disassembling the Printer This chapter describes procedures for disassembling the main components of the EPSON Stylus Scan 2500. Unless otherwise specified, disassembly units or components can be reassembled by reversing the disassembly procedure. Therefore, no specific assembly procedures are included in this chapter, but special points regarding re-assembly are given under the heading “CHECK POINT”.
EPSON Stylus Scan 2500 W A R N IN G Revision A Danger of explosion if the battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the manufacture. Dispose the used batteries according to government’s law and regulations. C A U T IO N C A U T IO N Risque d’explosion si la pile est remplacée incorrectment. Ne remplacer que par une pile du même type ou d’un type équivalent recommandé par le fabricant.
EPSON Stylus Scan 2500 Revision A 4.1.2 Tools 4.1.3 Specification for Screws Table 4-1 lists the tools recommended for disassembling, assembling, or adjusting the printer. Use only tools that meet these specifications. Table 4-2 shows screw specifications. During assembly and disassembly, make sure that the specified types of screws are used at proper locations, referring to the table below. Note that the screw numbers described in the manual correspond to the numbers in the table. Table 4-1.
EPSON Stylus Scan 2500 Revision A Table 4-3. Screw Types and Abbreviations Head Body Top 1. Cross-recessed head Side 1. Bind 1. Normal 2. Slotted head 2. S-tight Washer (assembled) 1. Plain washer 2. Outside toothed lock washer (with Notch) 2. Pan 3. P-tight 3. Cup/flange 4. Tapping 3. Spring washer 4.
EPSON Stylus Scan 2500 Revision A 4.1.4 Service Checks After Repair Before returning the printer after servicing, use the check list below, which enables you to keep record of servicing and shipping more efficiently. Table 4-4.
EPSON Stylus Scan 2500 Revision A Table 4-4.
EPSON Stylus Scan 2500 Revision A 4.2 Disassembly Procedures The flowchart below shows procedures for disassembly. Before servicing the Stylus Scan, perform these operations as described in the User’s Guide.
EPSON Stylus Scan 2500 4.3 Removing the Housing Disassembly & Assembly Revision A 4.3.1 Removing the rear cover 1. Remove the paper stacker. 2. Remove four (CBS 3x6) screws. 3. Pull out the rear cover from the bottom.
EPSON Stylus Scan 2500 Revision A 4.3.2 Removing the top cover 4.3.3 Removing the control panel assembly 1. Remove the rear cover as described above. 2. Remove the Document cover, the Maintenance cover, and the optional interface cover. The control panel assembly is replaced as one piece; there is no board-level repair. 3. Move the scanner mechanism towards the middle of the Stylus Scan. 4. Remove three screws 1. Remove the rear cover and top cover as described in the two previous sections.
EPSON Stylus Scan 2500 Revision A 4.3.4 Removing the side covers 4.3.5 Removing the scanner support frame 1. Remove the rear and top covers as described in “Removing the rear cover” on page 82 and “Removing the top cover” on page 83. 2. Remove two screws (CBS 3x6) securing the left-side cover and remove the cover by pulling out and up from the top. To access the printer mechanism, printer motors, waste ink pads, or the B102 Power Supply board, you need to remove the scanner support frame.
EPSON Stylus Scan 2500 5. Revision A Remove five screws (CBS 3x6) securing the scanner support frame to the printer mechanism frame, and remove the scanner support frame. 4.3.6 Removing the paper eject assembly scanner mechanism. 1. Remove the rear cover and top cover as described in “Removing the Housing” on page 82. 2. Remove the side covers as described in “Removing the side covers” on page 84. 3. Remove the scanner support frame as described in “Removing the scanner support frame” on pag e84.
EPSON Stylus Scan 2500 Revision A 4.3.7 Removing the power supply board upper frame 1. Remove the rear cover and top cover as described in “Removing the Housing” on page 82. 2. Remove the side covers as described in “Removing the side covers” on page 84. 3. Remove the scanner support frame as described in “Removing the scanner support frame” on pag e84. 4. Remove one connector for the AC cable, and one screw (CBS 3x6) and one spacer. Remove two screws on the left side.
EPSON Stylus Scan 2500 5. Revision A Remove one screw (CBS 3x6) securing the power-button board and one screw (CBS 4x6) securing the upper frame.. 4.3.8 Removal of the B102 PSB/PSE Board 1. Remove the rear cover and top cover as described in “Removing the Housing” on page 82. 2. Remove the side covers as described in “Removing the side covers” on page 84. 3. Remove the scanner support frame as described in “Removing the scanner support frame” on pag e84. 4.
EPSON Stylus Scan 2500 Revision A 4.3.9 Removing the printer mechanism 4. 1. Remove the rear cover and top cover as described in “Removing the Housing” on pag e82. 2. Remove the side covers as described in “Removing the side covers” on page 84. 3. Remove one screw (CBS 3x6) from the right-side frame. Remove two screws (CBS 4x6) and two spacers.
EPSON Stylus Scan 2500 5. Revision A Remove three screws (CBS 4x6) and one screw (CBS 3x6). 6. Remove two screws (CBS 3x6) and lift the side panel from the bottom to finally see the bare, naked printer mechanism. Remove three screws. Remove two screws. Remove one screw.
EPSON Stylus Scan 2500 Revision A 4.4 Removal of the Circuit Board Tray C A U T IO N The plastic cable protectors are held in place when the tray is shut, but they can easily break or chip when removing or replacing the tray. Be careful not to twist or force the protectors. C H E C K P O IN T When replacing the cables in the protectors, keep in mind that the protectors must be fully inserted so that the hooks properly attach to the tray.
EPSON Stylus Scan 2500 6. Revision A T eight CBS 3x6 screws securing the board to the bottom of the tray T three CP 3x6 screws securing the connector interfaces. 4.5 Removal of the Printer Consumables Remove the circuit board.
EPSON Stylus Scan 2500 Revision A 4.5.1 Removing the waste ink pads 1. 4. Remove the rear cover and top cover as described in “Removing the Housing” on pag e82. 2. Remove the scanner support frame as described in “Removal of the Circuit Board Tray” on page 90. 3. Remove one screw (CBP 3x8) that secures the waste ink tank and is located on the right side of the printer mechanism.
EPSON Stylus Scan 2500 Revision A 4.5.2 Removing the cleaning assembly (Pump and Cap) 1. Remove the housing as described in “Removing the Housing” on page 82. 2. Remove the waste ink tank as described in “Removing the waste ink pads” on pag e92. 3. Loosen two screws located on the edge of the paper eject frame assembly and float release the joints for the paper eject assembly and the side frames, as shown on the next page. 4.
EPSON Stylus Scan 2500 C H E C K P O IN T T T T T Revision A When reassembling the cleaning assembly, refer to the figure below. Since the spring is included among the gears in the pump assembly, be careful that the parts do not pop out during disassembly and assembly. When assembling the printer, be careful not to crush nor leave any stress on the ink tube connecting the pump assembly and the cap assembly.
EPSON Stylus Scan 2500 Revision A Step 3. Loosen the screws on the right and left sides of the paper eject frame assembly. Step 5. Release the hooks from the right frame assembly. Pump Assembly Cap Assembly Step 7. Release the hook from the back of the printer mechanism and pull out two protrusions from the subframe. Step 6. Remove two CBP 3x8 screws. Figure 4-2.
EPSON Stylus Scan 2500 Revision A 4.6 Disassembling the Printer Mechanism C A U T IO N This section explains procedures for disassembling the major parts or units of the printer mechanism. T 4.6.1 Removing the Printhead Unit 1. Remove the upper cover as described in Section 4.3. 2. Remove the upper frame as described in “Removing the scanner support frame” on pag e84. 3. Rotate the flat gear 73.6 towards yourself (front) to release the carriage lock mechanism.
EPSON Stylus Scan 2500 Revision A Step 6. Remove the FFC and FFC guide. Fastener Head Step 8. Remove one CBP 3x6 screw and the fastener. FFC Make sure that this protrusion is in the U ditch of the print head side. This part should be touching the CR shaft receiver. Step 9. Remove the printhead. Make sure that the protrusion of the carriage fits in this hole. Printhead Unit Carriage Assembly Note: There are no actuators on the printhead. Step 7. Remove the tension spring located here.
EPSON Stylus Scan 2500 Revision A 4.6.2 Removing the PF Motor Assembly Gear 34 1. Remove the housing as described in “Removing the Housing” on page 82. 2. Remove the waste ink tank. (Refer to Section 4.5.1.) 3. Remove the following gears located on the left side of the printer mechanism. T T T Spur gear 23.2 Combination gear 16,40.8 Spur gear 26.4 Combination gear 12.4, 28 Compression Spring 0.9 Gear 36 Gear 73.6 C A U T IO N Combination Gear8, 14.4 Gear 73.6 Gear 73.
EPSON Stylus Scan 2500 Revision A 4.6.3 Removing the CR Motor Assembly (No.1) 1. Remove the housing. (Refer to Section 4.3) 2. Rotate the gear 73.6 toward you and release the carriage lock mechanism, then move the carriage to the center. 3. Pull out the circuit board tray as described in “Removal of the Circuit Board Tray” on pag e90, and disconnect the CR motor cable from CN7. 4.
EPSON Stylus Scan 2500 Revision A 4.6.4 Removing the ASF Assembly CR Shaft Installation Screw 1. Remove the housing. (Refer to Section 4.3.) 2. Release the fixed hook from the inside of the printer mechanism and remove the gear 34 from the roller shaft in the ASF assembly. 3. Remove the cables from the cable hook on the printer mechanism and the hook on the ASF assembly. 4. After removing 2 screws (one No.
EPSON Stylus Scan 2500 Revision A 4.6.4.1 Disassembling the ASF Roller Assembly 1. Remove the ASF assembly. (Refer to Section 4.6.4.) 2. Remove the brake lever, releasing one leg of the torsion spring 41.2 from the hook of the ASF frame. 3. Remove the fixing shaft bushing from the right side of the LD roller shaft and the release hopper lever. 4. Move the left paper feed assembly to the center and remove the cam fixing bushing (white plastic) attached to the left side of LD roller shaft. 5.
EPSON Stylus Scan 2500 Revision A Hopper Assembly Brake Leveer Torsion Spring 41.2 Left Shaft Fixing Bushing ASF Frame Release Hopper Lever (EPSON standard color) Paper Feed Roller Assembly Shaft Fixing Bushing (Black) LD Roller Shaft Figure 4-9.
EPSON Stylus Scan 2500 Revision A 4.6.4.2 Removing the Right and Left LD Roller Assembly 1. Disassemble the ASF assembly and remove the paper feed roller assembly and hopper assembly from the ASF assembly. (Refer to Section 4.6.4.) 2. Take out the right and left compression springs 1.66 from the back of the hopper assembly. 3. Pull out the cam part of the hopper assembly from the hole located on the frame of the right LD roller assembly, 4. Pull out the LD roller shaft.
EPSON Stylus Scan 2500 Revision A 4.6.5 Removing the Carriage Assembly PG Lever 1. Remove the housing. (Refer to Section 4.3) 2. Push in the driven pulley holder and remove the timing belt from the pulley on the CR motor side. (See Figure 4-6 on p age99.) 3. Take the compression spring 19.6 out of the driven pulley holder. 4. Remove the driven pulley assembly from the driven pulley holder with the timing belt. Slide the driven pulley holder and remove it from the frame. 5. Remove the 63.
EPSON Stylus Scan 2500 Revision A Carrige Assembly Left Parallelism Adjustment Bushing CR Guide Shaft Right Parallelism Ajustment Bushing PG Support Lever Washer [Convex side should face to the bushing side during installation] Figure 4-12.
EPSON Stylus Scan 2500 Revision A 4.6.6 Removing the PF Roller Assembly 1. Remove the housing. (Refer to Section 4.3.) 2. Remove the carriage assembly. (Refer to Section 4.6.5.) 3. Remove three screws (CBS 3x6) on the printer mechanism and disassemble the cable guide board. 4. Remove six upper paper guide assemblies, releasing their springs from the hooks in the frame. 5. Remove the front paper guide ;B, releasing the hooks. (Refer to next page.) 6.
EPSON Stylus Scan 2500 Revision A Front Paper Guide; B Align the protrusion in the PF roller assembly with the hole in the frame for holding the shaft. Eject Paper Roller Assembly PF Roller Assembly Figure 4-14. Removing the Paper Eject Roller Assembly Disassembly & Assembly Figure 4-15.
EPSON Stylus Scan 2500 Revision A 4.6.7 Removing the PE Paper Detector Assembly 1. Remove the housing. (Refer to Section 4.3.) 2. Release two fixed hooks securing the PE detector assembly from the back of the frame and remove the PE detector assembly, sliding it upward. Remove the PE board assembly and PE lever, if necessary. C H E C K P O IN T After releasing two hooks, remove the PF paper detector assmebly, sliding it upward.
EPSON Stylus Scan 2500 Revision A 4.7 Disassembly of the Scanner Mechanism 4.6.8 Removing the HP Detector 1. Remove the housing. (Refer to Section 4.3.) 2. Remove the cable from the HP detector and take it out after releasing the fixed hook. You only need to remove the scanner from the scanner support frame when servicing the scanner mechanism. HP Detector Figure 4-17.
EPSON Stylus Scan 2500 Revision A 4.7.1 Removing the scanner 4.7.1.1 Removing the lamp You only need to remove the scanner from the scanner support frame when replacing the scanner mechanism. You do not need to remove the scanner from the support frame when servicing You do not have to remove the scanner mechanism to replace the lamp. T T T T The printer mechanism 1. Remove the rear cover and top cover as described in “Removing the Housing” on page 82. 2.
EPSON Stylus Scan 2500 Revision A 4.7.1.2 Removing the scanner power supply board 1. Remove the scanner cover and lamp as described above. 2. Remove one screw (CBP 3x8 with flange). 3. Remove one connector CN1. 4. Remove the power supply board. 4.7.1.3 Removing the scanner assembly from the scanner guide shaft 1. Using pliers, remove one spring.. 3) Remove the FFC. 1) Remove spring here. 2) Remove two screws.
EPSON Stylus Scan 2500 Revision A 4.7.2 Removing the scanner motor 1. Remove the rear cover and top cover as described in “Removing the Housing” on pag e82. 2. Pull out the circuit board tray as described in “Removal of the Circuit Board Tray” on pag e90. 3. Disconnect the scanner motor cable (CN13). Using a 3M wrench, remove two nuts securing the motor.
CHAPTER 5 ADJUSTMENT
EPSON Stylus Scan 2500 Revision A The scanner mechanism requires no adjustment for any service operation provided you closely follow the specifications in this manual and the instructions in Chapter 4 “Disassembly and Assembly”. Table 5-2. List of Required Adjustments No. Adjustment Item Conditions T 5.1 Required Adjustments The Stylus Scan printer mechanism requires the adjustments shown in Table 5-1.
EPSON Stylus Scan 2500 Revision A 5.2 Printer Adjustment 5.1.1 Adjustment Tools Required Table 5-3 below shows necessary adjustment tools. This section explains detailed adjustment procedures for the printer mechanism such as parallelism adjustment and using the adjustment program to enter market and Head ID information (see page 124). Table 5-3. Adjustment Tools Required No. Name Adjustment Item Contents/Spec. 1 Thickness Gauge Parallelism Adjustment 1.
EPSON Stylus Scan 2500 Revision A 3. Move the carriage to the center and set the thickness gauge on the fixed position of the front paper guide; B as shown in Figure 5-1 on the next page. 4. Move the carriage so that the printhead overlaps the thickness gauge. C H E C K P O IN T T T Put the thickness gauge on the flat side of a ribbed section of the front paper guide; B. To move the carriage, pull the timing belt with your hand. 5.
EPSON Stylus Scan 2500 Revision A 5.3 Using the Service-Adjustment Program Position mark Forward = Gap widens Backward = Gap narrows + side Side frame - side For the Stylus Scan, instead of an exclusive service-adjustment program, you need to use the production program when performing certain service operations. This program is necessary to eliminate any malfunction or fluctuation between individual printer mechanisms and printer parts.
EPSON Stylus Scan 2500 Revision A 5.3.2 Openning the Start-up menu Table 5-4. Software-based Adjustment Procedures 1. Connect the printer and PC and turn on the printer. Adjustment procedure See 2. From the Start menu, select Programs>Program for Production>P00B01W The following screen appears.
EPSON Stylus Scan 2500 Revision A 1. Open the Start-up menu as described above. 2. Select Head ID and click OK. The following menu appears. C A U T IO N Only select Print Head ID in the Head ID menu. All other options are for factory use only.
EPSON Stylus Scan 2500 Revision A Figure 5-5.
EPSON Stylus Scan 2500 Revision A PRODUCTION MENU 4. Click Next again. 5. Click FINISH. 6. The Production Menu appears, as shown on the next page. See the following pages for details on performing service-related adjustments. To enter the Production menu, follow these steps. 1. Open the Start-up menu as described above. 2. Select Production and click OK. 3. Make sure CT (cartridge) is selected in the first Configuration window and then click Next.
EPSON Stylus Scan 2500 Revision A Figure 5-6.
EPSON Stylus Scan 2500 Revision A 5.3.3 Initial Ink Charge Operation 5.3.4 Bi-D Adjustment There is no ink in the ink path of a spare printhead and printer mechanism when first installed; therefore, after replacing either of these two parts, you need to perform an initial ink charge. You perform this adjustment to correct differences in printing positions, which is caused by slippage of printing timing in right and left directions during the Bi-directional printing.
EPSON Stylus Scan 2500 Revision A 5.3.5 Head Cleaning Operation Variable/Normal Bi-d = - n Unlike many previous models, the Stylus Scan does not have a dummy cleaning sequence called CL3, which was performed to prevent ink from being unnecessarily consumed when cleaning was repeated without any printout. However, Stylus Scan is alternatively equipped with the strongest cleaning sequence CL2 contained in this adjustment program.
EPSON Stylus Scan 2500 Revision A 5.3.6 Head Voltage ID Input 5.3.7 Head Angular Adjustment Head voltage value adjustment function enables you to write printhead ID. This operation is considered the most important to maintain proper ink discharging system. If an ID is not written correctly, it results in white or color lines and also cause wrong dot-weight errors. This adjustment is required in the following cases.
EPSON Stylus Scan 2500 Revision A NOTE: Make sure to loosen this screw. Otherwise, the printhead angle will not change even if the adjustment lever moves. 5. Look very closely at the black/magenta lines in the bottom pattern and move the adjustment lever to center the magenta lines between the black lines. The figure below shows how to move the lever to correct a misaligned pattern. To move this down Correct condition = vertical spacing is even Figure 5-8.
EPSON Stylus Scan 2500 Revision A 9. After completing the adjustment, tighten the printhead screw, and reassemble the Stylus Scan. 5.4 Scanner Adjustment 5.3.8 Ink draining The scanner mechanism requires no adjustment for any service operation provided you closely follow the specifications in this manual and the instructions in Chapter 4 “Disassembly and Assembly”. To drain the ink from the cartridge before transporting it a long distance, follow the steps below. 1.
CHAPTER 6 MAINTENANCE
EPSON Stylus Scan 2500 Revision A 6.1 Overview Table 6-2. Lubrication Points This chapter provides information necessary to keep the scanner function in optimum condition constantly and to prevent troubles. Figure Lubrication Points 6-1 Transmission Gear Shaft of the CR motor and Driven pulley shaft. G-26 (1x3mm) 6-1 Driven Pulley Shaft G-26(1x3mm) 6.1.1 Cleaning Perform cleaning when stain is noticeable. Stain on the document glass, particularly, has direct effect on the scanned image.
EPSON Stylus Scan 2500 Revision A Table 6-4. Lubrication Points (cont.) Table 6-4. Lubrication Point s No.
EPSON Stylus Scan 2500 Revision A Table 6-4. Lubrication Points (cont.) No. Standard Both Left/Right Bushings for “ROLLER, EXIT” 7 G-26 Remarks Avoid applying grease around the paper path. Use a syringe to apply it. Table 6-4. Lubrication Points (cont.) See pag e 134 No. 11 8 G-26 9 G-26 See pag e Remarks Completely wipe off any grease sticking out to the inner side of ASF.
EPSON Stylus Scan 2500 Revision A PAPER GUIDE, FRONT G-26 G-26 ROLLER, PF UNIT Figure 6-2. #2 Front Paper Guide - A G-26 ROLLER, PF Figure 6-1. #1 Paper Feed Roller at two places C A U T IO N G-26 When rotating the Paper Feed Roller, only touch the projections on the outside surface of the 73.6 precision gear. Do not touch the teeth of the gear. Figure 6-3.
EPSON Stylus Scan 2500 Revision A No. 5 G-26 No. 4 "GEAR, 23.2" "GEAR, 16, 40.8" No.4 "GEAR, 73.6" Figure 6-4. #2 Front Paper Guide - C Screw No.4 "COMBINATION GEAR,8 14.4" Indent G-26 Figure 6-6. #4 Combination Gears and #5 Gear Shaft 270 mm (between the screw and Figure 6-5.
EPSON Stylus Scan 2500 Revision A BUSHING, 12, RIGHT G-26 Roller, Exit G-26 Figure 6-7. #6 Inside the PF Roller Bushing - Right G-26 G-26 BUSHING, 6 (Two pieces) BUSHING, 12, LEFT Figure 6-9. #7 Left & Right Exit Roller Bushings Figure 6-8.
EPSON Stylus Scan 2500 Revision A HOLDER, PULLEY, DRIVEN HOPPER ASSY; C G-26 G-26 G-26 Figure 6-10. #8 Driven Pulley Holder FRAME, ASF; B Figure 6-12. #10 ASF Hopper Assembly G-26 FRAME, ASF; B Figure 6-11.
EPSON Stylus Scan 2500 Revision A *Never apply the oil exceeding 0.6cc. Lubricate this area G-26 Do not lubricate these hooks. Oil pad Lubricated side faces out. Spur Gear, 27.2 Carriage Assembly (bottom view) Figure 6-13. #11 Gear 34 (ASF Roller Gear) "SHAFT.CR.GUIDE" Figure 6-14. #12 Carriage Assembly Oil Pa d W A R N IN G T T Maintenance Overview Never apply oil to the CR guide shaft directly. This may cause fatal damage to the components of the printer.
EPSON Stylus Scan 2500 No.3 Revision A No. 5 "GEAR, 34" No. 4 "GEAR, 23.2" "GEAR, 16, 40.8" No. 11 No.4 "GEAR, 73.6" No.4 "COMBINATION GEAR,8 14.4" No.6 No.
EPSON Stylus Scan 2500 Revision A "HOPPER, ASSEMBLY" "HOLDER, PULLEY, DRIVEN" No.10 No.8 "FRAME, ASF" No.
EPSON Stylus Scan 2500 Revision A 6.1.2.3 Scanner Mechanism This chapter provides information necessary to keep the scanner function in optimum condition constantly and to prevent troubles. When the carriage unit needs to be replaced, or the operation sound of the carriage movement becomes noisy, it is necessary to apply lubrication. Following tables show the recommended grease type and lubrication points. Table 6-5. Recommended Grease Type Name Supply Quantity Part No.
CHAPTER 7 APPENDIX
EPSON Stylus Scan 2500 Revision A 7.1 Connector This section provides information on Main board connectors. Figure 7-1, "Cable Connections for Stylus Scan 2500" shows how the main component units are connected.
EPSON Stylus Scan 2500 Revision A 7.1.1 Board Connector Summary Table 7-1. Circuit Board Connector Summary (cont.) Connector T h e ta ble b elo w p ro v id es bo a rd c o n ne cto r sum m a ry o f S ty lu s S c an 2 50 0 . Connection Pin Number Refer to 7-pin Table 7-14, “Connector Pin AssignmentCN15,” on page 145 2-pin Table 7-15 on page 146 12-pin Table 7-9 on page 144 14-pin Table 7-2 on page 143 Table 7-1.
EPSON Stylus Scan 2500 Revision A 7.1.2 Connector Pin Assignment Table 7-2. Connector Pin Assignment-CN2 (cont.) Tables in this section provide connector pin assignment of the Stylus Scan 2500. Signals of each connector on the B102 MAIN Board are listed below. Table 7-2. Connector Pin Assignment-CN2 Pin No. Signal Name I/O Function 1 GND O Ground 2 LD0 O 3 GND O 4 LD1 Pin No.
EPSON Stylus Scan 2500 Revision A Table 7-8. Connector Pin Assignment-CN9 (cont.) Table 7-7. Connector Pin Assignment-CN8 Pin No. Signal Name I/O Function 1 O Phase drive signal (A) PF-A 2 PF-B O Phase drive signal (B) 3 PF-/A O Phase drive signal (/A) 4 PF-/B O Phase drive signal (/B) Pin No. Signal Name I/O Function 25 COM O Head drive power supply 26 COM O Head drive power supply 27 VHV O Head drive voltage control signal Table 7-9.
EPSON Stylus Scan 2500 Revision A Table 7-11. Connector Pin Assignment-CN12 Pin No. Signal Name I/O Table 7-14. Connector Pin Assignment-CN15 Function Pin No. Signal Name I/O 1 COPEN I Sensor signal 1 +5V O 2 GND O Ground 2 GND O 3 CPWR O +5V 3 +24V O 4 LOD O 5 GND O 6 RxD I 7 TxD O 8 SCK O Table 7-12. Connector Pin Assignment-CN13 Pin No.
EPSON Stylus Scan 2500 Revision A 7.2 EEPROM Address Map Table 7-15. Printer Unit EEPROM Address Map (cont.) Address This section provides EEPROM address map for the Stylus Scan.
EPSON Stylus Scan 2500 Revision A Table 7-15. Printer Unit EEPROM Address Map (cont.) Address Explanation Table 7-15. Printer Unit EEPROM Address Map (cont.
EPSON Stylus Scan 2500 Revision A Table 7-15. Printer Unit EEPROM Address Map (cont.) Address Explanation 48H 49H Setting Table 7-15. Printer Unit EEPROM Address Map (cont.
EPSON Stylus Scan 2500 Revision A Table 7-15. Printer Unit EEPROM Address Map (cont.) Table 7-16.
EPSON Stylus Scan 2500 Revision A Table 7-16. System Unit EEPROM Map Table 7-16.
EPSON Stylus Scan 2500 Revision A Table 7-16. System Unit EEPROM Map Address Explanation 40H Paper size 41H Reserved (R4C4280) 42H Bottom Margin*3 43H Language *3 44H Setting 0:A4 1:B5 2:A6 3:Letter 4:Half L 5:5x8 Table 7-16.
EPSON Stylus Scan 2500 Revision A 7.3 Exploded Diagrams Table 7-16.
181 109 105 182 787 104 186 for EAI 106 100 128 128 789 187 101 806 500 108 129 400 for EAI 185 400 for ETT 129 116 129 123 103 SEE PAGE 2 813 For EUR,S.E.ASIA, OCEANIA,RUSSIA 400 450 401 119 102 331 107 X13 EPSON STYLUS SCAN 2500 No.1 123 Rev.
128 103 579 128 128 580 816 801 802 128 128 128 127 128 127 790 128 128 809 128 790 200 809 798 128 809 125 125 117 776 128 111 117 777 121 814 128 128 (813) 111 110 118 125 809 128 809 775 775 778 804 774 121 128 809 128 798 809 809 115 128 779 113 102 783 128 114 128 799 796 330 112 128 128 815 798 811 128 128 809 128 300 EPSON STYLUS SCAN 2500 No.2 Rev.
833 837 839 805 840 841 833 810 836 788 128 833 838 832 835 831 792 842 NOT ASP 835 822 819 748 820 830 834 749 782 128 781 128 332 128 120 763 128 128 770 803 791 793 797 785 821 817 715 128 798 820 763 818 748 715 784 812 128 128 128 120 786 128 EPSON STYLUS SCAN 2500 No.3 Rev.
534 504 750 527 524 503 523 588 520 519 532 521 527 513 530 526 578 525 517 (501) 521 518 528 591 574 590 528 577 591 754 573 592 502 EPSON STYLUS SCAN 2500 No.4 Rev.
747 128 780 794 587 126 587 587 823 510 598 808 587 587 807 501 558 769 557 546 567 758 756 565 A 587 556 757 569 559 587 511 554 507 555 568 545 552 506 548 (565) 505 551 545 553 550 549 548 587 550 549 A 545 551 587 548 545 587 551 548 550 549 551 550 549 587 547 548 545 551 548 587 551 550 549 550 549 EPSON STYLUS SCAN 2500 No.5 Rev.
(501) 522 566 183 759 184 527 516 760 800 535 762 761 515 706 800 700 529 536 587 704 531 564 562 705 537 772 544 538 542 544 542 703 602 702 563 540 544 542 544 542 544 542 701 596 601 587 767 543 541 544 768 539 544 542 587 600 597 544 542 544 542 512 595 544 542 544 542 795 544 587 600 (505) 771 544 542 773 560 542 544 542 EPSON STYLUS SCAN 2500 No.6 Rev.
711 709 703 726 727 714 712 740 703 713 755 764 739 721 708 718 763 735 728 707 720 729 741 723 736 743 742 746 738 745 710 737 721 736 730 737 720 724 739 745 731 733 744 716 746 717 719 725 734 735 718 722 732 724 EPSON STYLUS SCAN 2500 No.7 723 Rev.
122 751 576 765 122 587 509 508 514 588 530 533 752 534 589 766 571 (505) 572 570 753 EPSON STYLUS SCAN 2500 No.8 Rev.
07 06 02 For S.E.ASIA, CHINA 05 03 (03) (03) 04 (03) (03) 01 PACKING MATERIAL FOR EPSON STYLUS SCAN 2500 Rev.
EPSON Stylus Scan 2500 Revision A 7.4 Parts List Table 7-17. Parts List Refernce Number Table 7-17. Parts List Refernce Number Appendix Part Name Part Name 187 LABEL,ALIGNMENT 200 BOARD ASSY.,MAIN 100 PAPER SUPPORT ASSY. 300 BOARD ASSEMBLY,POWER SUPPLY 101 HOUSING ASSY, UPPER(ASP) 330 WIRE-HARNESS 102 HOUSING,R 331 WIRE-HARNESS 103 HOUSING,L 332 WIRE-HARNESS 104 CAP,CABLE,ADF 400 POWER CABLE ASSY.
EPSON Stylus Scan 2500 Revision A Table 7-17. Parts List Refernce Number Appendix Table 7-17. Parts List Part Name Refernce Number Part Name 520 SPURGEAR,26.4 548 SHAFT,PAPER GUIDE,UPPER 521 SPACER,C-RING 549 SHAFT,ROLLER,DRIVEN 522 SCALLOP SPRING PIN-AW,2X16,F/B 550 ROLLER,DRIVEN;D 523 COMPRESSION SPRING,0.9 551 TORSION SPRING,117.6 524 SPURGEAR,73.
EPSON Stylus Scan 2500 Revision A Table 7-17. Parts List Refernce Number Appendix Table 7-17. Parts List Part Name Refernce Number Part Name 577 BUSHING,FASTEN,COMBINATION GEAR 711 SLIDER,EDGEGUIDE 578 PUSHING NUT,2 712 COMPRESSION SPRING,3.23 579 HARNESS,HP 713 PAD,BREAK,EDGE GUIDE 580 HARNESS,PE 714 REINFORCEMENT PLATE,HOPPER 587 C.B.S. SCREW 715 HEXAGON NUT,NORMAL,M3 588 C.P.S-TITE(P4),3X6,F/ZN 716 PAD ASSY.
EPSON Stylus Scan 2500 Revision A Table 7-17. Parts List Refernce Number Appendix Table 7-17. Parts List Part Name Refernce Number Part Name 739 LEVER,HOPPER,RELEASE 767 C.P.B.(O) SCREW,1.7X5,F/ZN 740 WHEEL,DETECT 768 BUSHING,HOLDER,DETECTOR,I/C 741 LEVER,BRAKE 769 C.B.P-TITE SCREW,4X10,F/ZN 742 PAD,BREAK 770 RETAINING RING 743 TORSION SPRING,41.2 771 HOLDER ASSY.,STAR WHEEL,RIGHT,ASP 744 BUSHING,FASTEN,SHAFT 772 HOLDER ASSY.,STAR WHEEL,LEFT,ASP 745 SHEET,PAPERFEED 773 C.
EPSON Stylus Scan 2500 Revision A Table 7-17. Parts List Refernce Number Appendix Table 7-17. Parts List Part Name Refernce Number Part Name 795 FRAME,FRONT,SUPPORT 823 FERRITE CORE 796 GROUNDING PLATE,P/S 830 CARRIAGE UNIT,SC 797 FRAME,MAIN ASSY. 831 DOUBLE SIDE TAPE,28X10 798 BUSHING,EDGE 832 CLAMP,FERRITE CORE 799 FOOT,P/S 833 C.C.
EPSON Stylus Scan 2500 Revision A 7.
EPSON Stylus Scan 2500 Revision A Figure 7-2.
EPSON Stylus Scan 2500 Revision A Figure 7-3.
EPSON Stylus Scan 2500 Revision A Figure 7-4.
EPSON Stylus Scan 2500 Revision A Figure 7-5.
EPSON Stylus Scan 2500 Revision A 7.6 Circuit Diagrams This section contains the following circuit diagrams.
