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Epson Scan 2500 service manual Appendix Component Layouts 171

Models: Scan 2500

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EPSON Stylus Scan 2500

Revision A

Figure 7-5. B102 PSB Board Component Layout

Appendix

Component Layouts

171

Image 172

Epson Scan 2500 service manual Appendix Component Layouts 171

Contents

Epson Stylus Scan Epson Stylus Scan Revision a Precautions Preface Issued Date Revision StatusRevision DescriptionEpson Stylus Scan Revision a Contents Maintenance Product Description Local Copy Specifications Mode Scan Output Print Micro Dot Size Head MediaMode Res Weave Local copyScan area DocumentStarting scan Edge Position 1st bit Scanning Area DocumentPrint Area Print areaPaper feed direction Printable Area Raster Graphics mode PrintingInput data buffer Control codesPaper Printable Area for EnvelopesEnvelope Margin Size Left Margin Right Margin Top Margin Bottom Margin Min9 Ink Color Ink CartridgeScanner AASSafety, EMC Electrical specifications CommonHumidity % Temperature C Environmental conditionsResistance to electric noise ReliabilityPrinter Interface InterfacesParallel USB Configuration USB Preventing Data Transfer TIME-OUT of HostsInterface Selection Pin #2 Pin #1Scanner interfaces IEEE1284.4 ProtocolUSB Scanner Configuration for USBElement Description 10. Power-on functions 11. Special settings modeControl Panel ButtonsCopy Button 12. Copy button functions100% B&W Normal Quality Reduce Button Enlarge Number Color Warm up13. Settings Menu LCDIndicators and LCD Display 14. LCD display and LED indicatorsPrinter Initialization Initialization15. Initialization 16. Settings Menu Settings MenuScanner Initialization Stylus Scan Errors PRINTER-SPECIFIC Errors17. Printer-SPECIFIC errors MenusSCANNER-SPECIFIC Errors OptionsScanning ADFDimensions Physical CharacteristicsWeight Page Operating Principles General Printer Mechanism OperationMotor Types and Corresponding Functions Motor Type Function For detailsPrinting Mechanism PF motorPump unit CR guide shaft CR Motor PF roller PG leverNozzle selector Board SensorInk cartridge Piezo unit FilterPrinting Process Normal StateInk course Piezo unit Cavity Ejecting State NozzlesCarriage Motor Specifications CR Motor Control for Each ModePhase drive Carriage Mechanism and MotorPlaten GAP Lever MotorUnit Forward 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 MethodPower off sequence Power on sequenceCarriage Lock Mechanism Paper eject sequencePaper PICK-UP Operation Combination 12.4,28 Eject roller transmission GearPump, Carriage Lock, Head Cleaner Mechanism Carriage lock Lever Cleaner bladeInk System 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 MovementLocal and PC Copy Principles Local copy processStylus Scan 2500 Local Copy Dpi Type RemovalPC Copy Settings Mode Setting Scan Res. dpi Print Res. dpi MediaPC copy process Normal PC copyElectrical Circuit Operating Principles Application of DC Voltage 1 B102 PSB/PSE BoardVoltage Application Printer Scanner Power signal ZD53 SwitchD89 D51 C51,C52 Power drop Circuit Switch2 B102 Main Board 1284 I/F OptionTransceiver UnitEpson Stylus Scan Revision a Troubleshooting Unit Level Troubleshooting Printer Condition and Panel Stat usSymptoms and Problem s Printer/Scanner does not operate at power onFlowchart Failure occurs during printing Error is detectedEndEnd 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 Scanner Troubleshooting User-level Scanner-Specific errorsService Level Troubleshooting Starts Here Power problemsScanner does not initialize Carriage Unit does not operate10. Carriage unit crashes into frame 11. The lamp does not light up13. Scsi Interface Error 14. Parallel Interface Error12. Poor image quality 15. Option unit malfunctionTroubleshooting Motors and Sensors 16. Motor Resistance and Measurement ProcedureSensor Name Location Signal Level Sensor Status 17. Sensor CheckDisassembly & Assembly Overview When transporting the printer after installing Assembling or adjusting the printerMake the specified adjustments when you When assembling, if an ink cartridge is removedSpecification for Screws Screw CharacteristicsTools Tool ListScrew Types and Abbreviations Head Top Side Body Washer AssembledInspection Checklist for the Stylus Scan Service Checks After RepairCategory Component Item to check Is Check Required? Epson Stylus Scan Revision a Disassembly Procedures Removing the Housing Removing the rear coverRemoving the top cover Removing the control panel assemblyRemove 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 When reassembling the cleaning assembly, refer to Assembly, be careful that the parts do not pop out duringDisassembly and assembly 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 Hopper Assembly Brake Leveer Torsion Spring Paper Feed Roller AssemblyEpson standard color BlackRemoving the Right and Left LD Roller Assembly When installing the LD roller assembly, make sureAssembly 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 AssemblyRemoving the HP Detector Disassembly of the Scanner MechanismHP Detector Removing the lamp Removing the scannerRemove two screws Removing the scanner assembly from the scanner guide shaft Removing the scanner power supply boardRemove spring here Remove the FFC Removing the scanner motor Frame as described in .7.1.3 aboveAdjustment Required Adjustments List of Service Procedures That Require AdjustmentList of Required Adjustments Content of Operation Adjustment ProcedurePrinter Adjustment Adjustment Tools RequiredPrinter hardware adjustments Parallelism AdjustmentFixing Parallelism Adjustment Bushing Left Parallelism AdjustmentChecking Parallelism Using the Service-Adjustment Program Installing the programSoftware-based Adjustment Procedures Service Menu ItemsOpenning the Start-up menu 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 Voltage ID Input Head Angular AdjustmentFollowing patterns are printed Sample of Head Angular Adjustment Pattern Printhead Securing screwInk draining Scanner AdjustmentSpecial Menu Maintenance Cleaning LubricationPrinter lubrication points 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 Never apply the oil exceeding 0.6cc Faces out Carriage Assembly Bottom viewOil 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-CN8 Connector Pin Assignment-CN9Connector Pin Assignment-CN10 10. Connector Pin Assignment-CN1111. Connector Pin Assignment-CN12 12. Connector Pin Assignment-CN1313. Connector Pin Assignment-CN1 14. Connector Pin Assignment-CN15Address Explanation Setting SettingsEeprom Address Map 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 17. Parts List 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