Epson STYLUS Scan 2500 Service Manual
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Epson STYLUS Scan 2500 Service Manual

Epson STYLUS Scan 2500 Service Manual

All-in-one printer, scanner, and copier
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SERVICE MANUAL

All-in-one printer, scanner, and copier
EPSON STYLUS Scan 2500
®
SEIJ99007

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Summary of Contents for Epson STYLUS Scan 2500

  • Page 1: Service Manual

    SERVICE MANUAL All-in-one printer, scanner, and copier EPSON STYLUS Scan 2500 ® SEIJ99007...
  • Page 2 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. However, should any errors be detected, SEIKO EPSON would greatly appreciate being informed of them.
  • Page 3 1. Repairs on EPSON products should be performed only by an EPSON-certified repair technician. 2. Make certain that the source voltage is the same as the rated voltage listed on the serial number/rating plate. If the EPSON product has a primary AC rating different from the available power source, do not connect it to the power source.
  • Page 4 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.
  • Page 5 EPSON STYLUS Scan 2500 Revision A Revision Status Revision Issued Date Description Revision A October 5, 1999 First release...
  • Page 6 EPSON STYLUS Scan 2500 Revision A...

  • Page 7: Table Of Contents

    EPSON STYLUS Scan 2500 Revision A Contents Product Description Physical Characteristics ................32 Dimensions .................... 32 Features ....................... 10 Weight ....................32 General Specifications ................10 Local copy ....................10 Operating Principles Scan area....................11 General ......................34 Print area ....................12 Printing ....................
  • Page 8 EPSON STYLUS Scan 2500 Revision A Printer Related Troubleshooting ............... 65 Adjustment Scanner Troubleshooting ................69 Required Adjustments ................113 Troubleshooting Motors and Sensors ............73 Adjustment Tools Required..............114 Printer Adjustment ................... 114 Disassembly & Assembly Printer hardware adjustments............114 Using the Service-Adjustment Program..........

  • Page 9: Product Description

    C H A P T E R PRODUCT DESCRIPTION...

  • Page 10: Features

    5. Copy size Max. copy size 216 x 297mm (8.5 x 11.7inches) (Top, bottom, and both sides Installed functions are the same as or equivalent to the EPSON Stylus need 3mm margins) Color 740 and the GT-7000. Copy size protection...

  • Page 11: Scan Area

    EPSON Stylus Scan 2500 Revision A 6. Printing paper size Normal paper A4/Letter/A5/Executive Table 1-2. Scan Area Half letter/B5/A6/Index card 5x8”/8 x10”/Post card/Legal Document size (width) (length) (left) (right) (top) (bottom) Photo paper A4/ Letter/4x5”/Post card at least at least...

  • Page 12: Print Area

    EPSON Stylus Scan 2500 Revision A 1.2.3 Print area Table 1-3. Print Area Document at least at least at least at least 210mm 297mm Paper feed direction at least at least at least at least Letter 216mm 279mm at least...

  • Page 13: Printing

    EPSON Stylus Scan 2500 Revision A 1.2.4 Printing 1.2.6 Control codes Print method Drop On Demand ink jet ESC/P Raster Epson Remote Command Nozzle configuration monochrome 144 nozzles (48 x 3 staggered) color 48 nozzles each (cyan, magenta, yellow) 1.2.7 Paper feed...

  • Page 14: Paper

    EPSON Stylus Scan 2500 Revision A 1.2.8 Paper Cut-sheets 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”)

  • Page 15: Ink

    EPSON Stylus Scan 2500 Revision A 1.2.9 Ink 2. Ink cartridge (color) Type: Exclusive cartridge 1. Ink cartridge (black) Colors: Magenta, cyan, and yellow Type: Exclusive cartridge Print capacity: 300 pages/A4 (360 dpi, 5% duty each color) Color: Black Ink life:...

  • Page 16: Scanner

    EPSON Stylus Scan 2500 Revision A 1.3 Scanner Line art Fixed threshold Product type Flat-bed color image scanner Digital halftoning Error diffusion three modes (A,B,C) Sub scan method Movement of scan head (Bi-level, Quad-level) Dither (resident) four modes (A,B,C,D) Photoelectric device...

  • Page 17: Common

    EPSON Stylus Scan 2500 Revision A 1.4 Common 1.4.2 Safety, EMC Safety UL1950 (UL) CSA C22.2 No. 950 (CSA) 1.4.1 Electrical specifications EN60950 (VDE) Rated voltage AC 100~120V IEC950 (ROSTEST, PSB) AC 220~240V FCC Part15 Subpart B Class B Input voltage AC 100~120V ±10%...

  • Page 18: Environmental Conditions

    EPSON Stylus Scan 2500 Revision A 1.4.3 Environmental conditions 1.4.4 Resistance to electric noise Temperature 10~35°C (operating, see figure below) Static electricity panel - 10kV -20~60°C (non-operating, in packaging) metal - 7kV/150pF, 150 One month at 40°C 120 hours at 60°C 1.4.5 Reliability...

  • Page 19: Interfaces

    EPSON Stylus Scan 2500 Revision A 1.5 Interfaces Packet Refer to the IEEE-1284 Standard for Data Delivery and Logical Channels for IEEE Std. 1284.4 Interface (Draft D1.50) This section is divided into printer and scanner interface specifications. See Refer to the IEEE-1284 specification the following section for printer interface details or see “Scanner interfaces”...
  • Page 20 EPSON Stylus Scan 2500 Revision A PREVENTING DATA TRANSFER TIME-OUT OF HOSTS Standard :based on Generally, hosts abandon data transfer to peripherals when a peripheral is “Universal Serial Bus Specifications Revision 1.0” continuously in the busy state for dozens of seconds. To prevent hosts from “Universal Serial Bus Device Class Definition for...

  • Page 21: Scanner Interfaces

    EPSON Stylus Scan 2500 Revision A 1.5.2 Scanner interfaces IEEE1284.4 PROTOCOL The packet protocol described by IEEE1284.4 standard allows a device to PARALLEL carry on multiple exchanges or conversations which contain data and/or control information with another device at the same time across a single 1.
  • Page 22 Full Speed Mode (12Mbit/s) Class: Vendor-specific Subclass: Vendor-specific Protocol: Vendor-specific Device Vendor ID: 0x04B8 (Seiko Epson Corp.) Product ID: 0x0106 Number of possible configurations: 1 Number of interfaces supported by this configuration: 1 Characteristics: Self-powered (Remote wake-up feature not Configuration supported) Max.

  • Page 23: Control Panel

    EPSON Stylus Scan 2500 Revision A 1.6 Control Panel Load/ Printout Size Darker/ Quality Copy Stop/Clear Copies Eject button Lighter button button button LCD Panel Hold for Return Item menu Operate Error Cleaner indicator indicator Scan Reduce/ B&W/Color button Enlarge button Figure 1-8.
  • Page 24 EPSON Stylus Scan 2500 Revision A 3. Status COPY BUTTON Displays the current Stylus Scan condition. Before performing a local-copy operation, you should understand how the Example: LCD and control panel buttons work. The LCD displays: Scanner lamp is warming up...
  • Page 25 EPSON Stylus Scan 2500 Revision A Table 1-12. Copy button functions (cont.) Table 1-13. Settings Menu Button Function Notes Button Function Sets copy quality Hold Quality + B&W buttons • B&W for three seconds Quality Normal Change modes Menu Mode B&W/...

  • Page 26: Indicators And Lcd Display

    EPSON Stylus Scan 2500 Revision A 1.6.2 Indicators and LCD Display Table 1-14. LCD display and LED indicators (cont.) Scanner Indicators Table 1-14. LCD display and LED indicators Status Printer Display message Operate Error Copy Scanner Indicators Color Ink Low (displays...

  • Page 27: Initialization

    EPSON Stylus Scan 2500 Revision A 1.6.3 Initialization Table 1-15. Initialization Operat Stand Controller Scanner Printer Operation Restart PRINTER INITIALIZATION process process process There are three initialization methods. Power on Valid Valid initialization initialization 1. Power-on (hardware) initialization Panel Set the local...

  • Page 28: Settings Menu

    EPSON Stylus Scan 2500 Revision A 1.7 Settings Menu SCANNER INITIALIZATION 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.

  • Page 29: Stylus Scan Errors

    EPSON Stylus Scan 2500 Revision A 1.8 Stylus Scan Errors MENUS 1. Bottom Margin PRINTER-SPECIFIC ERRORS Determines the default bottom margin of 14mm or 3mm. Table 1-17. Printer-SPECIFIC errors 2. Paper Size category Determines which paper size category is enabled; metric or US...

  • Page 30: Options

    1.9 Options SCANNER-SPECIFIC ERRORS Table 1-18. Scanner-SPECIFIC errors The optional Auto Document Feeder and optional Transparency Unit designed for use with the GT-7000 scanner may also be used with the EPSON Error Cause Solution Stylus Scan 2500 under the following restrictions.

  • Page 31: Physical Characteristics

    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) 1.10.2 Weight Approximately 12Kg Product Description Physical Characteristics...
  • Page 32 EPSON Stylus Scan 2500 Revision A Product Description Physical Characteristics...

  • Page 33: Operating Principles

    C H A P T E R OPERATING PRINCIPLES...

  • Page 34: General

    2.1 General 2.2 Printer Mechanism Operation Like previous EPSON Ink Jet printers such as the Stylus Color 740, the The main components of the EPSON Stylus Scan 2500 are the printer printer mechanism of the EPSON Stylus Scan 2500 does not have an mechanism, scanner mechanism, and the following circuit boards exclusive mechanism to switch from paper feeding to pumping and back.

  • Page 35: Printing Mechanism

    EPSON Stylus Scan 2500 Revision A 2.2.1 Printing Mechanism Disengage PF motor 73.6 Gear/Precision Gear flag pinion The basic principles of the printhead are the same as previous models; Drop- On-Demand type MACH head method. Intermittent sensor You need to manually input the drive-voltage code (printed on top of the gear printhead) for the multi-layer piezo electric element.
  • Page 36 EPSON Stylus Scan 2500 Revision A Nozzle selector Board Ink Out sensor actuators Needle Ink cartridge (Piezo) unit Filter Nozzle Ink cavity plate 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.

  • Page 37: Printing Process

    EPSON Stylus Scan 2500 Revision A 2.2.2 Printing Process 2. Ejecting State: When a print signal is sent from the MAIN board, the IC (Nozzle Selector) The following figures show sectional drawings of the printhead in the normal located on the printhead unit receives the data in 1-byte units. The Nozzle and ejecting states.

  • Page 38: Carriage Mechanism And Motor

    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 Drive Speed Drive frequency Printing mode Drive method the drive from the carriage motor. See Figure 2-6 on the next page.
  • Page 39 EPSON Stylus Scan 2500 Revision A PLATEN GAP LEVER Home position Carriage sensor motor Timing Paper feed belt Carriage roller unit Rear (thick Forward paper) position Paper eject (normal) rollers position Paper guide (front) Platen Gap lever Parallelism adjust lever Figure 2-6.

  • Page 40: Paper Feeding Mechanism

    ASF unit and pump/PF roller depending on the position of the disengage lever (described later). In the EPSON Stylus Scan 2500, a four-phase hybrid type pulse motor is used in the PF motor as a motive power of the paper mechanism. The torque is sent at 2-Double 1-2, Double 1-2, 1-2, and 2-2 phase drives.
  • Page 41 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.
  • Page 42 EPSON Stylus Scan 2500 Revision A 3. Due to the design of the ASF, the LD roller loses friction on the paper and MULTI-FEED PREVENTION MECHANISM stops at the point where the paper is fed by the PF roller. (See “PF Roller Paper Feed State”...
  • Page 43 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.
  • Page 44 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...
  • Page 45 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.

  • Page 46: Ink System

    2.2.6 Pump, Carriage Lock, Head Cleaner lever Mechanism Cleaner blade In the EPSON Stylus Scan 2500, there is no switch or mechanism to switch Eject roller PF (pump) between the ink pump and paper feed operations. Therefore, whenever the transmission...
  • Page 47 EPSON Stylus Scan 2500 Revision A The table below shows PF/Pump motor rotational direction and pump system operation. Axis of Gear A Paper eject Pump Motor Rotation and Function roller PF motor pinion gear rotation Pump unit operation (looking at gear surface)
  • Page 48 EPSON Stylus Scan 2500 Revision A Counter-Clockwise Clockwise Revolution 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 absorp- 1.3 rev/second 0.2ml/second tion High speed 2.6rev/second...

  • Page 49: Cap Mechanism

    EPSON Stylus Scan 2500 Revision A 2.2.7 Cap Mechanism Position A Positions B and C Carriage flag 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.

  • Page 50: Scanner Principles

    EPSON Stylus Scan 2500 Revision A 2.3 Scanner Principles Inverter Board: This board provides voltage to drive the lamp. Lamp: A white cold fluorescent lamp is used as the light This section explains the operating principles of the scanner mechanism. The source.

  • Page 51: Carriage Operation

    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.

  • Page 52: Local And Pc Copy Principles

    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. 1. The scanner scans at 300 or 600 dpi.

  • Page 53: Pc Copy Process

    Text & Image Scan > OriginalColorCopy > color matching table > print Fine Quality 1. The scanner scans at 300 or 600 dp, but EPSON TWAIN calls for 240 or Normal Speed 360 dpi image data (to match printer resolution).

  • Page 54: Electrical Circuit Operating Principles

    2.5 Electrical Circuit Operating Principles B102 PSB/ +5V/ B102 MAIN Board PSE Board 3.3V EPSON Stylus Scan 2500 contains the following three electric circuit boards. Electronic Boards for Stylus Color 2500 are; +42V/ AC Input 24VDC Main: B102 Main Board...

  • Page 55: B102 Psb/Pse Board

    Figure 2-22 shows a block diagram of power supply board. The process from the input of AC voltage to the output of DC voltage is explained in the The power supply board for the EPSON Stylus Scan 2500 generates +42VDC following pages.
  • Page 56 EPSON Stylus Scan 2500 Revision A SECONDARY SIDE Power signal from MAIN +3.3V +42V board/power switch ZD53 +5V line over voltage limitation IC51 ZD91 +5V regulator +24V line over IC151 voltage limitation ZD52,87 +3.3V regulator +42VDC line over +24V voltage limitation...

  • Page 57: B102 Main Board

    The following and the feedback circuit controls the flow like the brain controlling the figure shows the MAIN Board circuit diagram for EPSON Stylus Scan 2500. heartbeat/pulse. 7. The transformer receives approximate 100V or 220V DC (depending on the model) and steps the voltage down before sending it to the secondary side.
  • Page 58 EPSON Stylus Scan 2500 Revision A 1284 I/F Option 1284 Transceiver CN15 IC17 USB hub Panel Unit System & Scanner Block (See the B101 MAIN Scan Board schematic in Local Copy Block Mechani Chapter 7) (See the B101 MAIN Board schematic in...
  • Page 59 EPSON Stylus Scan 2500 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.

  • Page 60: Troubleshooting

    C H A P T E R TROUBLESHOOTING...

  • Page 61: Unit Level Troubleshooting

    EPSON Stylus Scan 2500 Revision A 3.1 Unit Level Troubleshooting Table 3-1. Printer Condition and Panel Stat us Indicators When a problem occurs, you can identify the defective unit according to the symptoms exhibits. The table below lists the symptoms of certain problems.

  • Page 62: Printer/Scanner Does Not Operate At Power On

    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. Start Printer does not LEDs do not light. operate at power Flowchart 3-1 Printer mechanism does not operate.

  • Page 63: Error Is Detected

    EPSON Stylus Scan 2500 Revision A 3.1.2 Error is detected 3.1.3 Failure occurs during printing Start Start Check the LCD Print a self message and refer test. to Table 3-1. Did it print Is the properly? Turn off the Stylus...

  • Page 64: Printer Does Not Feed Paper Correctly

    EPSON Stylus Scan 2500 Revision A 3.1.4 Printer does not feed paper correctly 3.1.5 Control panel operation is abnormal START START Paper Control loaded correctly panel connected in ASF? correctly? Set the paper correctly. Connect the control panel correctly. PF roller...

  • Page 65: Printer Related Troubleshooting

    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.
  • Page 66 EPSON Stylus Scan 2500 Revision A Table 3-4. Repair of the Printer Mechanis m Symptom Condition Cause Check Point Solution Foreign substances are Manually drive the platen drive gear and Remove any foreign substances. Abnormal PF motor loaded in the PF gears.
  • Page 67 EPSON Stylus Scan 2500 Revision A Table 3-4. Repair of the Printer Mechanism (cont.) Symptom Condition Cause Check Point Solution Head FFC is out of Check if the head FFC on the board or Connect the FFC properly. connection. carriage is connected surely.
  • Page 68 EPSON Stylus Scan 2500 Revision A Table 3-4. Repair of the Printer Mechanism (cont.) Symptom Condition Cause Check Point Solution A vertical line is not Bi-directional alignment is Perform Bi-D adjustment. Refer to Chapter4. aligned. not adjusted. Head angle is not correct. Perform head angle adjustment.
  • Page 69 EPSON Stylus Scan 2500 Revision A Table 3-4. Repair of the Printer Mechanism (cont.) Symptom Condition Cause Check Point Solution Check the signal level of the ASF sensor. ASF sensor is defective. Replace ASF sensor. (Refer to Table 5-2) Check the signal level of the PE sensor.

  • Page 70: Scanner Troubleshooting

    EPSON Stylus Scan 2500 Revision A 3.3 Scanner Troubleshooting Table 3-6. Service Level Troubleshooting Starts Here Phenomenon Description Ref, Table This section describes troubleshooting from the abnormal phenomenon. You • The Operate light on the control can isolate the faulty unit based on the abnormal phenomenon. See panel does not come on.
  • Page 71 EPSON Stylus Scan 2500 Revision A Table 3-7. Power problems (cont.) Table 3-9. Carriage Unit does not operate Cause Step Checkpoint Finding Solution Cause Step Checkpoint Finding Solution With the scanner With the scanner power On, check the on, check the voltage...
  • Page 72 EPSON Stylus Scan 2500 Revision A Table 3-9. Carriage Unit does not operate (cont.) Table 3-10. Carriage unit crashes into frame Cause Step Checkpoint Finding Solution Cause Step Checkpoint Finding Solution Disconnect the connector Check the signal CN6 on the control board, level.
  • Page 73 EPSON Stylus Scan 2500 Revision A Table 3-12. Poor image quality Table 3-14. Parallel Interface Error Cause Step Checkpoint Finding Solution Cause Step Checkpoint Finding Solution Is the image On the Windows, Mirror in the scanned clearly Clean the lamp go to “My...

  • Page 74: Troubleshooting Motors And Sensors

    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 Pins 1 & 3, CR Motor CN7 (MAIN board *) 7.8 Ohms Pins 2 & 4 Pins 1 &...

  • Page 75: Disassembly & Assembly

    C H A P T E R DISASSEMBLY & ASSEMBLY...

  • Page 76: Overview

    See the precautions given under the headings “WARNING” and “CAUTION” This chapter describes procedures for disassembling the main components of below, before disassembling or assembling the EPSON Stylus Scan 2500. the EPSON Stylus Scan 2500. Unless otherwise specified, disassembly units or components can be reassembled by reversing the disassembly procedure.
  • Page 77 EPSON Stylus Scan 2500 Revision A Danger of explosion if the battery is incorrectly replaced. Never remove the ink cartridge from the carriage Replace only with the same or equivalent type unless this manual specifies to do so. recommended by the manufacture. Dispose the used When transporting the printer after installing the batteries according to government’s law and regulations.

  • Page 78: Tools

    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 Table 4-2 shows screw specifications. During assembly and disassembly, adjusting the printer. Use only tools that meet these specifications.
  • Page 79 EPSON Stylus Scan 2500 Revision A Table 4-3. Screw Types and Abbreviations Head Washer Body (assembled) Side 1. Cross-recessed 1. Bind head 1. Plain washer 1. Normal 2. Outside 2. Slotted head toothed lock 2. S-tight washer (with Notch) 3. Spring washer 2.

  • Page 80: Service Checks After Repair

    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. Inspection Checklist for the Stylus Scan...
  • Page 81 EPSON Stylus Scan 2500 Revision A Table 4-4. Inspection Checklist for the Stylus Scan Category Component Item to check Is Check Required? Is the glass surface clean? C hecked / N ot necessary Mechanism Does paper skew during loading or feeding...

  • Page 82: Disassembly Procedures

    EPSON Stylus Scan 2500 Revision A 4.2 Disassembly Procedures The flowchart below shows procedures for disassembly. Before servicing the Stylus Scan, perform these Start operations as described in the User’s Guide. Ink cartridge Power off & CR home position removal...

  • Page 83: Removing The Housing

    EPSON Stylus Scan 2500 Revision A 4.3 Removing the Housing 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. Disassembly & Assembly Removing the Housing...

  • Page 84: Removing The Top Cover

    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. The control panel assembly is replaced as one piece; there is no board-level repair. 2. Remove the Document cover, the Maintenance cover, and the optional interface cover.

  • Page 85: Removing The Side Covers

    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 To access the printer mechanism, printer motors, waste ink pads, or the B102 cover”...

  • Page 86: Removing The Paper Eject Assembly

    EPSON Stylus Scan 2500 Revision A 5. Remove five screws (CBS 3x6) securing the scanner support frame to the 4.3.6 Removing the paper eject assembly printer mechanism frame, and remove the scanner support frame. scanner mechanism. 1. Remove the rear cover and top cover as described in “Removing the Housing”...

  • Page 87: Removing The Power Supply Board Upper Frame

    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.

  • Page 88: Removal Of The B102 Psb/Pse Board

    EPSON Stylus Scan 2500 Revision A 5. Remove one screw (CBS 3x6) securing the power-button board and one 4.3.8 Removal of the B102 PSB/PSE Board screw (CBS 4x6) securing the upper frame.. 1. Remove the rear cover and top cover as described in “Removing the Housing”...

  • Page 89: Removing The Printer Mechanism

    EPSON Stylus Scan 2500 Revision A 4.3.9 Removing the printer mechanism 4. Remove two screws (CBS 4x6) and two spacers. 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.
  • Page 90 EPSON Stylus Scan 2500 Revision A 5. 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.

  • Page 91: Removal Of The Circuit Board Tray

    EPSON Stylus Scan 2500 Revision A 4.4 Removal of the Circuit Board Tray The plastic cable protectors are held in place when the tray is shut, but they can easily break or chip when Unlike the Stylus Scan 2000, the 2500 contains only the B102 MAIN board in removing or replacing the tray.

  • Page 92: Removal Of The Printer Consumables

    EPSON Stylus Scan 2500 Revision A 4.5 Removal of the Printer Consumables eight CBS 3x6 screws securing the board to the bottom of the tray three CP 3x6 screws securing the connector interfaces. 6. Remove the circuit board. Disassembly & Assembly...

  • Page 93: Removing The Waste Ink Pads

    EPSON Stylus Scan 2500 Revision A 4.5.1 Removing the waste ink pads 4. Remove the spacer on the left side of the tray and carefully pull the tray out and downward. 1. Remove the rear cover and top cover as described in “Removing the Housing”...

  • Page 94: Removing The Cleaning Assembly (Pump And Cap)

    EPSON Stylus Scan 2500 Revision A 4.5.2 Removing the cleaning assembly (Pump and 7. Release a hook securing the pump assembly to the frame and remove the pump assembly, moving it toward the right. (Refer to Figure 4-2 on the Cap) next page.
  • Page 95 EPSON Stylus Scan 2500 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.
  • Page 96 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 Step 6.

  • Page 97: Disassembling The Printer Mechanism

    EPSON Stylus Scan 2500 Revision A 4.6 Disassembling the Printer Mechanism Since the ink cartridge once taken out can not be used again, be sure to install a new ink cartridge when you return the printer to the user. This section explains procedures for disassembling the major parts or units of When you return the printer to the user, be sure to the printer mechanism.
  • Page 98 EPSON Stylus Scan 2500 Revision A Make sure that This part should this protrusion is be touching the Step 6. Fastener Head in the U ditch of CR shaft receiver. Remove the print head the FFC Step 8. side. and FFC Remove guide.

  • Page 99: Removing The Pf Motor Assembly

    EPSON Stylus Scan 2500 Revision A 4.6.2 Removing the PF Motor Assembly Gear 34 Spur gear 1. Remove the housing as described in “Removing the Housing” on 23.2 page 82. Combination gear 16,40.8 2. Remove the waste ink tank. (Refer to Section 4.5.1.) 3.

  • Page 100: Removing The Cr Motor Assembly

    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.

  • Page 101: Removing The Asf Assembly

    EPSON Stylus Scan 2500 Revision A 4.6.4 Removing the ASF Assembly CR Shaft 1. Remove the housing. (Refer to Section 4.3.) Installation Screw 2. Release the fixed hook from the inside of the printer mechanism and CBS Sems screw remove the gear 34 from the roller shaft in the ASF assembly.
  • Page 102 When installing the right and left paper feed roller assemblies to the LD roller shaft, the black paper feed roller assembly goes on the right side and the one in the standard EPSON color goes on the left of the shaft. Disassembly & Assembly...
  • Page 103 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. Disassembly of ASF Assembly Disassembly &...
  • Page 104 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 LD Roller Cover (Right and Left) 4.6.4.)

  • Page 105: Removing The Carriage Assembly

    EPSON Stylus Scan 2500 Revision A 4.6.5 Removing the Carriage Assembly PG Lever 1. Remove the housing. (Refer to Section 4.3) Right parallelism 2. Push in the driven pulley holder and remove the timing belt from the bushing Insert this side pulley on the CR motor side.
  • Page 106 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. Removing the Carriage Assembly Disassembly & Assembly...

  • Page 107: Removing The Pf Roller Assembly

    EPSON Stylus Scan 2500 Revision A 4.6.6 Removing the PF Roller Assembly Upper Paper Guide Assembly 1. Remove the housing. (Refer to Section 4.3.) Left Paper Guide Upper Paper 2. Remove the carriage assembly. (Refer to Section 4.6.5.) Guide Shaft 3.
  • Page 108 EPSON Stylus Scan 2500 Revision A Align the protrusion in the PF roller assembly with the hole in the frame for holding the shaft. Front Paper Guide; B Eject Paper Roller Assembly PF Roller Assembly Figure 4-15. Removing the PF Roller Assembly Figure 4-14.

  • Page 109: Removing The Pe Paper Detector Assembly

    EPSON Stylus Scan 2500 Revision A 4.6.7 Removing the PE Paper Detector Assembly After releasing two hooks, remove the PF paper detector assmebly, 1. Remove the housing. (Refer to Section 4.3.) sliding it upward. (From back side of 2. Release two fixed hooks securing the PE detector assembly from the back the frame) of the frame and remove the PE detector assembly, sliding it upward.

  • Page 110: Removing The Hp Detector

    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.) You only need to remove the scanner from the scanner support frame when 2. Remove the cable from the HP detector and take it out after releasing the servicing the scanner mechanism.

  • Page 111: Removing The Scanner

    EPSON Stylus Scan 2500 Revision A 4.7.1 Removing the scanner 4.7.1.1 Removing the lamp You do not have to remove the scanner mechanism to replace the lamp. You only need to remove the scanner from the scanner support frame when replacing the scanner mechanism.
  • Page 112 EPSON Stylus Scan 2500 Revision A 4.7.1.2 Removing the scanner power supply board 4.7.1.3 Removing the scanner assembly from the scanner guide shaft 1. Remove the scanner cover and lamp as described above. 1. Using pliers, remove one spring.. 2. Remove one screw (CBP 3x8 with flange).

  • Page 113: Removing The Scanner Motor

    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”...

  • Page 114: Adjustment

    C H A P T E R ADJUSTMENT...

  • Page 115: Required Adjustments

    EPSON Stylus Scan 2500 Revision A The scanner mechanism requires no adjustment for any service operation Table 5-2. List of Required Adjustments provided you closely follow the specifications in this manual and the instructions in Chapter 4 “Disassembly and Assembly”.

  • Page 116: Adjustment Tools Required

    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 Table 5-3. Adjustment Tools Required program to enter market and Head ID information (see page 124).
  • Page 117 EPSON Stylus Scan 2500 Revision A 3. Move the carriage to the center and set the thickness gauge on the [FIXING PARALLELISM ADJUSTMENT BUSHING] fixed position of the front paper guide; B as shown in Figure 5-1 on the next page.

  • Page 118: Using The Service-Adjustment Program

    EPSON Stylus Scan 2500 Revision A 5.3 Using the Service-Adjustment Program Position mark For the Stylus Scan, instead of an exclusive service-adjustment program, you Forward = Backward = need to use the production program when performing certain service Gap widens Gap narrows operations.

  • Page 119: Openning The Start-Up Menu

    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 Then see 2. From the Start menu, select Programs>Program for “Head ID Menu” on “Head Voltage ID Input”...
  • Page 120 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. Only select Print Head ID in the Head ID menu. All other options are for factory use only.
  • Page 121 EPSON Stylus Scan 2500 Revision A Figure 5-5. Head ID Menu Adjustment Using the Service-Adjustment Program...
  • Page 122 EPSON Stylus Scan 2500 Revision A 4. Click Next again. PRODUCTION MENU 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.
  • Page 123 EPSON Stylus Scan 2500 Revision A Figure 5-6. Production Menu Adjustment Using the Service-Adjustment Program...

  • Page 124: Initial Ink Charge Operation

    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 You perform this adjustment to correct differences in printing positions, when first installed; therefore, after replacing either of these two parts, you which is caused by slippage of printing timing in right and left directions need to perform an initial ink charge.

  • Page 125: Head Cleaning Operation

    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.

  • Page 126: Head Voltage Id Input

    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. During production, slight variations are created in printheads and carriage This operation is considered the most important to maintain proper ink (which are used as a printhead base.) The head angular adjustment...
  • Page 127 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.

  • Page 128: Ink Draining

    EPSON Stylus Scan 2500 Revision A 5.4 Scanner Adjustment 9. After completing the adjustment, tighten the printhead screw, and reassemble the Stylus Scan. The scanner mechanism requires no adjustment for any service operation 5.3.8 Ink draining provided you closely follow the specifications in this manual and the instructions in Chapter 4 “Disassembly and Assembly”.

  • Page 129: Maintenance

    C H A P T E R MAINTENANCE...

  • Page 130: Overview

    Following tables show the recommended grease type and lubrication points. O-12 1038991 EPSON Table 6-1. Recommended Grease Supply Type Name Part No. Specification Quantity Grease G-26 B702600001 Note*) “E” means exclusive product for EPSON. (Not available on the market) Maintenance Overview...
  • Page 131 EPSON Stylus Scan 2500 Revision A Table 6-4. Lubrication Points (cont.) Table 6-4. Lubrication Point s Standard Remarks Standard Remarks <Lubrication Point> <Lubrication Point> Gears: Contact between “ROLLER, PF” Do not put grease around the “GEAR, 73.6” and “PAPER GUIDE, REAR”...
  • Page 132 EPSON Stylus Scan 2500 Revision A Table 6-4. Lubrication Points (cont.) Table 6-4. Lubrication Points (cont.) Standard Remarks Standard Remarks <Lubrication Point> <Lubrication Point> Both Left/Right Bushings for The round cutout in the left frame “ROLLER, EXIT” Avoid applying grease around the of ASF (“GEAR, 34”...
  • Page 133 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 G-26 When rotating the Paper Feed Roller, only touch the projections on the outside surface of the 73.6 precision...
  • Page 134 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 No.4 "COMBINATION GEAR,8 14.4" Screw Indent G-26 Figure 6-6. #4 Combination Gears and #5 Gear Shaft 270 mm (between the screw and Figure 6-5.
  • Page 135 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.
  • Page 136 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. #9 ASF Roller Shaft...
  • Page 137 EPSON Stylus Scan 2500 Revision A *Never apply the oil exceeding 0.6cc. Lubricate this area Do not lubricate these hooks. G-26 Oil pad Lubricated side Spur Gear, 27.2 faces out. Carriage Assembly (bottom view) Figure 6-13. #11 Gear 34 (ASF Roller Gear) "SHAFT.CR.GUIDE"...
  • Page 138 EPSON Stylus Scan 2500 Revision A No. 5 No.3 "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.7 Maintenance Overview...
  • Page 139 EPSON Stylus Scan 2500 Revision A "HOPPER, ASSEMBLY" "HOLDER, PULLEY, DRIVEN" No.10 No.8 "FRAME, ASF" No.9 Maintenance Overview...
  • Page 140 Name Part No. Specification Quantity Grease G-26 B702600001 Note*) “E” means exclusive product for EPSON. (Not available on the market.) Table 6-6. Lubrication points Figure Lubrication Points Lubrication Transmission Gear Shaft of the CR motor and G-26 (1x3mm) Driven pulley shaft.

  • Page 141: Appendix

    C H A P T E R APPENDIX...

  • Page 142: Connector

    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. Scanner Printer Mechanism Mechanism CR HP CR HP...

  • Page 143: Board Connector Summary

    EPSON Stylus Scan 2500 Revision A 7.1.1 Board Connector Summary Table 7-1. Circuit Board Connector Summary (cont.) Connector Connection Pin Number Refer to 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 .

  • Page 144: Connector Pin Assignment

    EPSON Stylus Scan 2500 Revision A 7.1.2 Connector Pin Assignment Table 7-2. Connector Pin Assignment-CN2 (cont.) Pin No. Signal Name Function Tables in this section provide connector pin assignment of the Stylus Scan SW11 Panel switch input (11) 2500. SW12 Panel switch input (12) Signals of each connector on the B102 MAIN Board are listed below.
  • Page 145 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 Function Pin No. Signal Name Function Head drive power supply PF-A Phase drive signal (A) Head drive power supply...
  • Page 146 EPSON Stylus Scan 2500 Revision A Table 7-11. Connector Pin Assignment-CN12 Table 7-14. Connector Pin Assignment-CN15 Pin No. Signal Name Function Pin No. Signal Name Function COPEN Sensor signal Ground Ground CPWR +24V Table 7-12. Connector Pin Assignment-CN13 Ground Pin No. Signal Name...

  • Page 147: Eeprom Address Map

    EPSON Stylus Scan 2500 Revision A 7.2 EEPROM Address Map Table 7-15. Printer Unit EEPROM Address Map (cont.) QPIT Factory Address Explanation Setting Settings Settings This section provides EEPROM address map for the Stylus Scan. Head actuator (*1) Table 7-15. Printer Unit EEPROM Address Map...
  • Page 148 EPSON Stylus Scan 2500 Revision A Table 7-15. Printer Unit EEPROM Address Map (cont.) Table 7-15. Printer Unit EEPROM Address Map (cont.) QPIT Factory QPIT Factory Address Explanation Setting Address Explanation Setting Settings Settings Settings Settings Interface time- 0 to 255 (by second, value of...
  • Page 149 EPSON Stylus Scan 2500 Revision A Table 7-15. Printer Unit EEPROM Address Map (cont.) Table 7-15. Printer Unit EEPROM Address Map (cont.) QPIT Factory QPIT Factory Address Explanation Setting Address Explanation Setting Settings Settings Settings Settings 00H(*2) Power off time...
  • Page 150 EPSON Stylus Scan 2500 Revision A Table 7-15. Printer Unit EEPROM Address Map (cont.) Table 7-16. System Unit EEPROM Map QPIT Factory Address Explanation Setting QPIT Factory Settings Settings Address Explanation Setting Settings Settings R4C4270= H EEPROM R4C4270= A Mapping revision...
  • Page 151 EPSON Stylus Scan 2500 Revision A Table 7-16. System Unit EEPROM Map Table 7-16. System Unit EEPROM Map QPIT Factory QPIT Factory Address Explanation Setting Address Explanation Setting Settings Settings Settings Settings Reserved Reserved Reserved Reserved Reserved Serial Number Not used...
  • Page 152 EPSON Stylus Scan 2500 Revision A Table 7-16. System Unit EEPROM Map Table 7-16. System Unit EEPROM Map QPIT Factory QPIT Factory Address Explanation Setting Address Explanation Setting Settings Settings Settings Settings 0:A4 1:B5 2:A6 Reserved Paper size 00H*4 3:Letter 4:Half L 5:5x8...

  • Page 153: Exploded Diagrams

    EPSON Stylus Scan 2500 Revision A 7.3 Exploded Diagrams Table 7-16. System Unit EEPROM Map QPIT Factory Address Explanation Setting Settings Settings This section contains the following exploded diagrams. Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved...
  • Page 154 EAI for EAI for ETT SEE PAGE 2 For EUR,S.E.ASIA, OCEANIA,RUSSIA EPSON STYLUS SCAN 2500 No.1 Rev.01 10138...
  • Page 155 580 816 (813) EPSON STYLUS SCAN 2500 No.2 Rev.01 10138...
  • Page 156 NOT ASP EPSON STYLUS SCAN 2500 No.3 Rev.01 10138...
  • Page 157 (501) EPSON STYLUS SCAN 2500 No.4 Rev.01 10138...
  • Page 158 (565) EPSON STYLUS SCAN 2500 No.5 Rev.01 10138...
  • Page 159 (501) 542 544 (505) 542 544 EPSON STYLUS SCAN 2500 No.6 Rev.01 10138...
  • Page 160 EPSON STYLUS SCAN 2500 No.7 Rev.01 10138...
  • Page 161 (505) EPSON STYLUS SCAN 2500 No.8 Rev.01 10138...
  • Page 162 02 For S.E.ASIA, CHINA (03) (03) (03) (03) PACKING MATERIAL FOR EPSON STYLUS SCAN 2500 Rev.01 10138...

  • Page 163: Parts List

    EPSON Stylus Scan 2500 Revision A 7.4 Parts List Table 7-17. Parts List Refernce Number Part Name Table 7-17. Parts List LABEL,ALIGNMENT BOARD ASSY.,MAIN Refernce Number Part Name BOARD ASSEMBLY,POWER SUPPLY PAPER SUPPORT ASSY. WIRE-HARNESS HOUSING ASSY, UPPER(ASP) WIRE-HARNESS HOUSING,R...
  • Page 164 EPSON Stylus Scan 2500 Revision A Table 7-17. Parts List Table 7-17. Parts List Refernce Number Part Name Refernce Number Part Name SPURGEAR,26.4 SHAFT,PAPER GUIDE,UPPER SPACER,C-RING SHAFT,ROLLER,DRIVEN SCALLOP SPRING PIN-AW,2X16,F/B ROLLER,DRIVEN;D COMPRESSION SPRING,0.9 TORSION SPRING,117.6 SPURGEAR,73.6 CIRCUIT ASSY,PE SPACER,FASTEN,ROLLER,PF HOLDER,PE SPACER,FASTEN,ROLLER,PF;B...
  • Page 165 EPSON Stylus Scan 2500 Revision A Table 7-17. Parts List Table 7-17. Parts List Refernce Number Part Name Refernce Number Part Name BUSHING,FASTEN,COMBINATION GEAR SLIDER,EDGEGUIDE PUSHING NUT,2 COMPRESSION SPRING,3.23 HARNESS,HP PAD,BREAK,EDGE GUIDE HARNESS,PE REINFORCEMENT PLATE,HOPPER C.B.S. SCREW HEXAGON NUT,NORMAL,M3 C.P.S-TITE(P4),3X6,F/ZN PAD ASSY.,RIGHT...
  • Page 166 EPSON Stylus Scan 2500 Revision A Table 7-17. Parts List Table 7-17. Parts List Refernce Number Part Name Refernce Number Part Name LEVER,HOPPER,RELEASE C.P.B.(O) SCREW,1.7X5,F/ZN WHEEL,DETECT BUSHING,HOLDER,DETECTOR,I/C LEVER,BRAKE C.B.P-TITE SCREW,4X10,F/ZN PAD,BREAK RETAINING RING TORSION SPRING,41.2 HOLDER ASSY.,STAR WHEEL,RIGHT,ASP BUSHING,FASTEN,SHAFT HOLDER ASSY.,STAR WHEEL,LEFT,ASP SHEET,PAPERFEED C.C.S.
  • Page 167 EPSON Stylus Scan 2500 Revision A Table 7-17. Parts List Table 7-17. Parts List Refernce Number Part Name Refernce Number Part Name FRAME,FRONT,SUPPORT FERRITE CORE GROUNDING PLATE,P/S CARRIAGE UNIT,SC FRAME,MAIN ASSY. DOUBLE SIDE TAPE,28X10 BUSHING,EDGE CLAMP,FERRITE CORE FOOT,P/S C.C.P-TITE,3X8,F/ZB SPACER,COVERCATRIDGE...

  • Page 168: Component Layouts

    EPSON Stylus Scan 2500 Revision A 7.5 Component Layouts B102 MAIN Board 1 B102 MAIN Board 2 B102 PSB Board B102 PSE Board Appendix Component Layouts...
  • Page 169 EPSON Stylus Scan 2500 Revision A Figure 7-2. B101 MAIN Component Layout 1 Appendix Component Layouts...
  • Page 170 EPSON Stylus Scan 2500 Revision A Figure 7-3. B101 MAIN Component Layout 2 Appendix Component Layouts...
  • Page 171 EPSON Stylus Scan 2500 Revision A Figure 7-4. B102 PSE Board Component Layout Appendix Component Layouts...
  • Page 172 EPSON Stylus Scan 2500 Revision A Figure 7-5. B102 PSB Board Component Layout Appendix Component Layouts...

  • Page 173: Circuit Diagrams

    EPSON Stylus Scan 2500 Revision A 7.6 Circuit Diagrams This section contains the following circuit diagrams. B101 MAIN Board (x3) B101 PSB Board B101 PSE Board Appendix Circuit Diagrams...

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