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Epson C40UX service manual Non porous pad in cap, non porous pad in cap Stylus C40/C20

Models: C40UX

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Stylus C40UX/C40SX/C20UX/C20SX

Revision A

2.1.6.2.2 Non porous pad in cap

Due to this, the cap is newly designed as follows.

Stylus C40/C20

Stylus COLOR 480

seal rubber	porous pad

ink eject hole

Figure 2-18. non porous pad in cap (Stylus C40/C20)

The cap unit used for the previous models has the porous pad to keep the moisture in the cap and prevent that the air bubble occurs in CL sequence.

To get the same effects on new cap unit without the porous pad.

For keep the moisture in the cap

The diameter of the ink eject hole is smaller than that of Stylus COLOR 480

For prevent that the air bubble occurs in CL sequence

The cap is modified so that ink flows to ink eject hole with air bubble in CL sequence.

Operating Principles

Overview

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Image 37

Epson C40UX service manual Non porous pad in cap, non porous pad in cap Stylus C40/C20

Contents

Stylus C40UX/C40SX/C20UX/C20SX General Notice Precautions About This Manual Revision Status Contents Disassembly AdjustmentProduct Description Eeprom 29 H bit 0 value Model Delay time during printing Delay of oparationDifferences between the Stylus C20 and the Stylus C40 ThroughputPrinting Specification Physical SpecificationHorizontal Printable area Available dot CR Speed Paper Feeding Electrical specificationInput Data Buffer Feed condition Time SpeedEnvirormental Condition Safety ApprovalsReliability Acoustic NoiseUSB Interface Signal name In/Out Function descriptionParallel Interface Forward Channel Parameter Minimum Maximum Parallel I/F mode Typical time of tackParameter Parallel Interface Reverse Channel Pin No Signal Name ReturnG Functional descriptionPrevention Hosts from Data Transfer Time-out IEEE1284.4 Protocol Control Panel Operate SwitchPanel Functions Printer Condition and Panel StatusPrinter Initialization ErrorsPaper Handling Paper SpecificationPrintable Area for Cut Sheet Printing AreaMargin Paper LMLeft RMRight TMTop Black BM Color BMSize Color Ink Cartridge Black Ink CartridgeOperating Principles Printer Mechanism OverviewPrinthead Sectional Drawing PrintheadEjecting State Normal StateInk Path Ink CavityItems Specifications Carriage Motor SpecificationCarriage Mechanism Detection positionI/C change position Paper Feeding Mechanism PF Motor Specifications† PF motor drive transmission path Paper Loading Mechanism ASF Unit † Switch the PF motor drive to ASF unit side† Transfer the PF motor drive to LD roller ASF unit function & PF Motor rotational direction† Clutch Mechanism † Paper Return Plate Pad holder 11. Disengage & Clutch mechanism13. ASF Paper Loading Sequence PF motor rotational direction & Ink System Mechanism Ink System MechanismWiper with the cap unit 16. Cap Mechanism18. non porous pad in cap Stylus C40/C20 Non porous pad in cap† Timer Cleaning † Manual CleaningInk Sequence † Initial ink charge† Flashing Printing mode for Color mode Printing modePrinting mode for Black mode 1 C417 PSB/PSE board Electrical Circuit Operating PrinciplesApplication of the DC Voltages TRANST1 Main Elements 2 C413 MAIN/B BoardTroubleshooting Sensor Check Point Sensor Name Check Point Signal Level Switch ModeMotor Location Check Point Resistance Error Indicator of Operation Panel Troubleshooting with LED Error IndicationsError Condition and possible cause Printer Status Indicators Priority Power ErrorStep Detail phenomenon Check point Remedy Paper out error indicationSpur gear 35.2 is Rotating If it is no problem, proceed Paper jam error indication 11. Paper Jam Error indication 10. Paper jam error indication12. Ink Out error indication Detail phenomenon Check point Remedy13. Multiple papers are always loaded 15. Fatal Error indication14. Paper is always loaded without any print job 17. Dot missing occur and it is not recovered with CL 19. Dot missing occur and it is not recovered with CL 18. Dot missing occur and it is not recovered with CL21. Print quality is not good 20. Print quality is not good22. Print quality is not good Disassembly and Assembly Printer PrecautionsEt que le cordon d’alimentation soit debranche Tools Name and Specification Outward FormScrews Name Supplier Parts NoWork Completion Check Work Completion CheckClassifi Check Point Status Cation Classifi Check Point StatusDisassembling Flowchart DisassemblyUpper housing Upper housing removalEdge guide CBP 3⋅ CBS P2 3⋅ ASF unit removalWaste ink pad removal „ Waste ink counter reset operation. Refer to SectionTube stopper Waste ink pad CN2 PS unit S 3⋅ P 3⋅ PS unit removal„ Tightening Torque for screw +/-1 kgf.cm Protrusion Paper eject roller removalCBS 3⋅ Front FrameGear Paper Eject rollerMain board removal Switch cover HooksUSB Type CBS 3⋅ Parallel Type F.S-Tite 3⋅ 22. Removing the Main board 21. Disconnecting the connectorsCR motor removal Carriage unit Printhead unit removalCarriage cover Printhead unit30. Disconnecting the FFC LD unit Cables LD unit removalPrinter mechanism removal Adjustment Required Adjustment Required AdjustmentPerformance Priority Adjustment Program Initial Setting menu Basic adjustment items Adjustment Program featureMain Menu Service Feed command until the paper is set in the ASF Bi-d adjustment even if the paper is out in the ASF. WhenHead ID Eeprom initial settingRead out the Head ID from the Eeprom Bi-D 10. Choose the Bi-d adjustmentUSB ID 13. Bi-d adjustment input menu15. Choose the USB ID input menu 16. Choose the Top margin menu Top marginInitial ink charge Head cleaningFor the initial ink charge operation is so large 21. Choose the Refurbishment for DOA menu Refurbishment for DOACheck the present counter value Protection counter checkExcepting ESP Clear the present counter value26. Eeprom check function Eepron checkEeprom back up data 29. Eeprom backup data31. A4 Check pattern 15 A4 pattern will print32. A4 Check pattern Maintenance Cleaning † Head Cleaning Service Maintenance† Maintenance Error Clear LubricationMain frame Right side view Lubrication Type/PointLubrication Type/Point Remarks 200mm Appendix Major Component Unit Connector SummaryPin CN9-PrintheadEeprom Address Map Address Explanation SettingEeprom Address Map FactoryAppendix Eeprom Address Map 103 Appendix Eeprom Address Map 104 Market Eeprom address Eeprom setting Bit7 Bit6 Name modeBit3 Bit2 D4mode Bit1 Bit0 D4modeC413MAIN component layout Component LayoutAppendix Component Layout 107 Parts list Parts ListRef No Description Stylus C40UX/C40SX/C20UX/C20SX Exploded Diagram Exploded DiagramAppendix Exploded Diagram 110 Appendix Exploded Diagram 111 Stylus C40UX/C40SX/C20UX/C20SXRevision a Appendix Exploded Diagram 113 Appendix Exploded Diagram 114 Electrical Circuits Page Page Page Page