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Epson Scan 2500 service manual Remove three screws Remove two screws Remove one screw

Models: Scan 2500

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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.

Remove two screws.

Remove one screw.

Disassembly & Assembly

Removing the Housing

89

Image 90

Epson Scan 2500 service manual Remove three screws Remove two screws Remove one screw

Contents

Epson Stylus Scan Epson Stylus Scan Revision a Precautions Preface Revision Issued DateRevision Status DescriptionEpson Stylus Scan Revision a Contents Maintenance Product Description Mode Res Weave Local Copy SpecificationsMode Scan Output Print Micro Dot Size Head Media Local copyStarting scan Edge Position 1st bit Scanning Area Scan areaDocument DocumentPrint area Print AreaPaper feed direction Printable Area Input data buffer Raster Graphics modePrinting Control codesEnvelope Margin PaperPrintable Area for Envelopes Size Left Margin Right Margin Top Margin Bottom Margin Min9 Ink Color Ink CartridgeScanner AASSafety, EMC Electrical specifications CommonResistance to electric noise Humidity % Temperature CEnvironmental conditions ReliabilityInterfaces Printer InterfaceParallel Interface Selection USB ConfigurationUSB Preventing Data Transfer TIME-OUT of Hosts Pin #2 Pin #1Scanner interfaces IEEE1284.4 ProtocolScanner Configuration for USB USBElement Description Control Panel 10. Power-on functions11. Special settings mode Buttons100% B&W Normal Quality Reduce Button Enlarge Number Color Copy Button12. Copy button functions Warm up13. Settings Menu LCDIndicators and LCD Display 14. LCD display and LED indicatorsInitialization Printer Initialization15. Initialization Settings Menu 16. Settings MenuScanner Initialization 17. Printer-SPECIFIC errors Stylus Scan ErrorsPRINTER-SPECIFIC Errors MenusScanning SCANNER-SPECIFIC ErrorsOptions ADFPhysical Characteristics DimensionsWeight Page Operating Principles Motor Types and Corresponding Functions GeneralPrinter Mechanism Operation Motor Type Function For detailsPump unit Printing MechanismPF motor CR guide shaft CR Motor PF roller PG leverInk cartridge Nozzle selector BoardSensor Piezo unit FilterInk course Piezo unit Cavity Ejecting State Printing ProcessNormal State NozzlesPhase drive Carriage Motor SpecificationsCR Motor Control for Each Mode Carriage Mechanism and MotorUnit Forward Platen GAP LeverMotor NormalMotor Control for Each Mode PF Motor Specifications Paper Feeding MechanismPaper Feeding Mechanism Top View MULTI-FEED Prevention Mechanism Multiple Paper Loading Prevention Mechanism right side viewSmaller TRAILING-EDGE Margin MethodCarriage Lock Mechanism Power off sequencePower on sequence Paper eject sequencePaper PICK-UP Operation Combination 12.4,28 Eject roller transmission GearInk System Pump, Carriage Lock, Head Cleaner MechanismCarriage lock Lever Cleaner blade Pump roller Cap unitPump Motor Rotation and Function Gear B Compression Spring Gear C Pump drive RollerPump Mode Revolutions Absorption Pumping modesCap Mechanism Scanner Principles Carriage UnitCarriage Operation 20. Carriage MovementStylus Scan 2500 Local Copy Local and PC Copy PrinciplesLocal copy process Dpi Type RemovalPC copy process PC Copy SettingsMode Setting Scan Res. dpi Print Res. dpi Media Normal PC copyElectrical Circuit Operating Principles 1 B102 PSB/PSE Board Application of DC VoltageVoltage Application Printer Scanner D89 D51 C51,C52 Power drop Power signalZD53 Switch Circuit Switch2 B102 Main Board Transceiver 1284 I/FOption UnitEpson Stylus Scan Revision a Troubleshooting Unit Level Troubleshooting Printer Condition and Panel Stat usPrinter/Scanner does not operate at power on Symptoms and Problem sFlowchart Error is detected Failure occurs during printingEndEnd Printer does not feed paper correctly Control panel operation is abnormalPrinter Related Troubleshooting Printer-Specific errorsSymptom Condition Cause Check Point Solution Repair of the Printer Mechanis mRepair of the Printer Mechanism Epson Stylus Scan Revision a Epson Stylus Scan Revision a Service Level Troubleshooting Starts Here Scanner TroubleshootingUser-level Scanner-Specific errors Power problemsScanner does not initialize Carriage Unit does not operate10. Carriage unit crashes into frame 11. The lamp does not light up12. Poor image quality 13. Scsi Interface Error14. Parallel Interface Error 15. Option unit malfunctionSensor Name Location Signal Level Sensor Status Troubleshooting Motors and Sensors16. Motor Resistance and Measurement Procedure 17. Sensor CheckDisassembly & Assembly Overview Make the specified adjustments when you When transporting the printer after installingAssembling or adjusting the printer When assembling, if an ink cartridge is removedTools Specification for ScrewsScrew Characteristics Tool ListScrew Types and Abbreviations Head Top Side Body Washer AssembledService Checks After Repair Inspection Checklist for the Stylus ScanCategory Component Item to check Is Check Required? Epson Stylus Scan Revision a Disassembly Procedures Removing the Housing Removing the rear coverRemoving the control panel assembly Removing the top coverRemove three CBS 3x6 screws Removing the side covers Removing the scanner support frameRemoving the paper eject assembly Removing the power supply board upper frame Remove two screws On the left sideRemoval of the B102 PSB/PSE Board Cable protector Remove two ScrewsRemoving the printer mechanism Remove three screws Remove two screws Remove one screw Removal of the Circuit Board Tray Remove four screwsRemoval of the Printer Consumables Removing the waste ink pads Spacer Waste ink tankRemoving the cleaning assembly Pump Cap Disassembly and assembly When reassembling the cleaning assembly, refer toAssembly, be careful that the parts do not pop out during When assembling the printer, be careful not to crush norRemoving the Cap and Pump Assemblies Disassembling the Printer Mechanism Removing the Printhead UnitFastener Head Nozzle Selector has been enclosed into headRemoving the PF Motor Assembly Compression SpringRemoving the CR Motor Assembly No.1Removing the ASF Assembly Removing the ASF AssemblyDisassembling the ASF Roller Assembly Epson standard color Hopper Assembly Brake Leveer Torsion SpringPaper Feed Roller Assembly BlackAssembly Removing the Right and Left LD Roller AssemblyWhen installing the LD roller assembly, make sure That the hooks are hung on the paper feedRemoving the Carriage Assembly 12. Removing the Carriage Assembly Removing the PF Roller Assembly Front Paper Guide B Eject Paper Roller Assembly PF Roller AssemblyRemoving the PE Paper Detector Assembly 16. Removing the PE Detector AssemblyDisassembly of the Scanner Mechanism Removing the HP DetectorHP Detector Removing the scanner Removing the lampRemove two screws Removing the scanner power supply board Removing the scanner assembly from the scanner guide shaftRemove spring here Remove the FFC Removing the scanner motor Frame as described in .7.1.3 aboveAdjustment List of Required Adjustments Required AdjustmentsList of Service Procedures That Require Adjustment Content of Operation Adjustment ProcedurePrinter hardware adjustments Printer AdjustmentAdjustment Tools Required Parallelism AdjustmentLeft Parallelism Adjustment Fixing Parallelism Adjustment BushingChecking Parallelism Using the Service-Adjustment Program Installing the programOpenning the Start-up menu Software-based Adjustment ProceduresService Menu Items Head ID MenuAdjustment Using the Service-Adjustment Program 118 Adjustment Using the Service-Adjustment Program 119 Production Menu Adjustment Using the Service-Adjustment Program 121 Bi-D Adjustment Initial Ink Charge OperationHead Cleaning Operation CL2 cleaning operation takes 60 seconds to completeHead Angular Adjustment Head Voltage ID InputFollowing patterns are printed Sample of Head Angular Adjustment Pattern Printhead Securing screwScanner Adjustment Ink drainingSpecial Menu Maintenance Printer lubrication points CleaningLubrication Scanner lubrication pointsLubrication Point s Standard Remarks PagMaintenance Overview 131 Maintenance Overview 132 Gear 40.8 No.4 GEAR,8Roller, Exit Two PiecesMaintenance Overview 135 Faces out Carriage Assembly Bottom view Never apply the oil exceeding 0.6ccOil pad Lubricated side No.3 Gear GEAR,8 No.6 No.7No.10 No.8 No.9Type Name Supply Specification Quantity Scanner MechanismAppendix Connector Board Connector Summary Connector Pin Assignment Connector Pin Assignment-CN10 Connector Pin Assignment-CN8Connector Pin Assignment-CN9 10. Connector Pin Assignment-CN1113. Connector Pin Assignment-CN1 11. Connector Pin Assignment-CN1212. Connector Pin Assignment-CN13 14. Connector Pin Assignment-CN15Eeprom Address Map Address Explanation SettingSettings 15. Printer Unit Eeprom Address MapAppendix Eeprom Address Map 147 Appendix Eeprom Address Map 148 16. System Unit Eeprom Map Appendix Eeprom Address Map 150 Appendix Eeprom Address Map 151 Exploded Diagrams Appendix Exploded Diagrams 152Epson Stylus Scan 2500 No.1 Epson Stylus Scan 2500 No.2 Epson Stylus Scan 2500 No.3 Epson Stylus Scan 2500 No.4 Epson Stylus Scan 2500 No.5 Epson Stylus Scan 2500 No.6 Rev.01 Epson Stylus Scan 2500 No.7 Epson Stylus Scan 2500 No.8 Packing Material for Epson Stylus Scan Parts List 17. Parts ListRefernceNumber Part Name Appendix Parts List 163 Appendix Parts List 164 Appendix Parts List 165 Appendix Parts List 166 Component Layouts Appendix Component Layouts 168 Appendix Component Layouts 169 Appendix Component Layouts 170 Appendix Component Layouts 171 Circuit Diagrams Page Page Page