Ink System Mechanism | Epson C40UX manual

Stylus C40UX/C40SX/C20UX/C20SX

Revision A

2.1.6 Ink System Mechanism

Ink system mechanism consists of pump unit (include the CR lock lever) and capping mechanism. Ink system mechanism drives the pump unit that presses cap to the printhead and ejects ink from ink cartridge, head cavity and cap to the waste ink pad.

2.1.6.1 Pump Unit & Wiper mechanism

The pump unit is driven by PF motor. PF motor drive is always transmitted to the paper feeding mechanism and pump unit through the following gears. Refer to the Figure 2-15.

PF Motor Pinion Gear (CCW) →	Spur Gear 60 (PF Roller)(CW) → Spur Gear 10.8(CW) →
Combination Gear 18, 28 (CCW) →	Spur Gear 27.2 (CW)(Pump unit)

Table 2-4. PF motor rotational direction & Ink System Mechanism

	Directions		Functions
	Directions		Functions

	Counterclockwise (*1)	•	Absorbs ink by the pump unit
	Counterclockwise (*1)	•	Set the CR lock lever
		•	Set the CR lock lever

(*1): The PF Motor rotational direction = seen from the right side of the printer.

Following figure shows the overview of the pump mechanism operation.

Figure 2-14. Pump mechanism

Pump unit

Spur Gear 10. 8

Cap unit

Combination Gear 18, 28

Figure 2-15. PF motor drive transmission path to the Pump unit

Pump unit

Spur Gear 27. 2

Operating Principles

Overview

35

Image 35

Epson C40UX service manual PF motor rotational direction & Ink System Mechanism

Contents

Stylus C40UX/C40SX/C20UX/C20SX General Notice Precautions About This Manual Revision Status Contents Disassembly Adjustment Product Description Throughput Delay of oparationEeprom 29 H bit 0 value Model Delay time during printing Differences between the Stylus C20 and the Stylus C40 Horizontal Printable area Available dot CR Speed Physical SpecificationPrinting Specification Feed condition Time Speed Electrical specificationPaper Feeding Input Data Buffer Acoustic Noise Safety ApprovalsEnvirormental Condition Reliability Parallel Interface Forward Channel Signal name In/Out Function descriptionUSB Interface Parameter Parallel I/F mode Typical time of tackParameter Minimum Maximum Parallel Interface Reverse Channel Pin No Signal Name ReturnG Functional description Prevention Hosts from Data Transfer Time-out IEEE1284.4 Protocol Printer Condition and Panel Status Operate SwitchControl Panel Panel Functions Printer Initialization Errors Paper Handling Paper Specification Printable Area for Cut Sheet Printing Area Size Paper LMLeft RMRight TMTop Black BM Color BMMargin Color Ink Cartridge Black Ink Cartridge Operating Principles Printer Mechanism Overview Printhead Sectional Drawing Printhead Ink Cavity Normal StateEjecting State Ink Path Detection position Carriage Motor SpecificationItems Specifications Carriage Mechanism I/C change position † PF motor drive transmission path PF Motor SpecificationsPaper Feeding Mechanism Paper Loading Mechanism ASF Unit † Switch the PF motor drive to ASF unit side † Clutch Mechanism ASF unit function & PF Motor rotational direction† Transfer the PF motor drive to LD roller † Paper Return Plate Pad holder 11. Disengage & Clutch mechanism 13. ASF Paper Loading Sequence PF motor rotational direction & Ink System Mechanism Ink System Mechanism Wiper with the cap unit 16. Cap Mechanism 18. non porous pad in cap Stylus C40/C20 Non porous pad in cap † Initial ink charge † Manual Cleaning† Timer Cleaning Ink Sequence † Flashing Printing mode for Black mode Printing modePrinting mode for Color mode Application of the DC Voltages Electrical Circuit Operating Principles1 C417 PSB/PSE board TRANST1 Main Elements 2 C413 MAIN/B Board Troubleshooting Motor Location Check Point Resistance Sensor Name Check Point Signal Level Switch ModeSensor Check Point Printer Status Indicators Priority Power Error Troubleshooting with LED Error IndicationsError Indicator of Operation Panel Error Condition and possible cause Step Detail phenomenon Check point Remedy Paper out error indication Spur gear 35.2 is Rotating If it is no problem, proceed Paper jam error indication Detail phenomenon Check point Remedy 10. Paper jam error indication11. Paper Jam Error indication 12. Ink Out error indication 14. Paper is always loaded without any print job 15. Fatal Error indication13. Multiple papers are always loaded 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 CL 21. Print quality is not good 20. Print quality is not good 22. Print quality is not good Disassembly and Assembly Printer Precautions Et que le cordon d’alimentation soit debranche Name Supplier Parts No Name and Specification Outward FormTools Screws Classifi Check Point Status Work Completion CheckWork Completion Check Classifi Check Point Status Cation Disassembling Flowchart Disassembly Edge guide Upper housing removalUpper housing CBP 3⋅ CBS P2 3⋅ ASF unit removal Tube stopper Waste ink pad „ Waste ink counter reset operation. Refer to SectionWaste ink pad removal „ Tightening Torque for screw +/-1 kgf.cm PS unit removalCN2 PS unit S 3⋅ P 3⋅ Front Frame Paper eject roller removalProtrusion CBS 3⋅ Gear Paper Eject roller USB Type CBS 3⋅ Parallel Type F.S-Tite 3⋅ Switch cover HooksMain board removal 22. Removing the Main board 21. Disconnecting the connectors CR motor removal Printhead unit Printhead unit removalCarriage unit Carriage cover 30. Disconnecting the FFC LD unit Cables LD unit removal Printer mechanism removal Adjustment Performance Priority Required AdjustmentRequired Adjustment Adjustment Program Initial Setting menu Main Menu Service Adjustment Program featureBasic adjustment items Feed command until the paper is set in the ASF Bi-d adjustment even if the paper is out in the ASF. When Head ID Eeprom initial setting Read out the Head ID from the Eeprom Bi-D 10. Choose the Bi-d adjustment USB ID 13. Bi-d adjustment input menu 15. Choose the USB ID input menu 16. Choose the Top margin menu Top margin For the initial ink charge operation is so large Head cleaningInitial ink charge 21. Choose the Refurbishment for DOA menu Refurbishment for DOA Check the present counter value Protection counter check Excepting ESP Clear the present counter value 26. Eeprom check function Eepron check Eeprom back up data 29. Eeprom backup data 31. A4 Check pattern 15 A4 pattern will print 32. A4 Check pattern Maintenance Cleaning Lubrication Service Maintenance† Head Cleaning † Maintenance Error Clear Lubrication Type/Point Remarks Lubrication Type/PointMain frame Right side view 200mm Appendix Major Component Unit Connector Summary Pin CN9-Printhead Factory Address Explanation SettingEeprom Address Map Eeprom Address Map Appendix Eeprom Address Map 103 Appendix Eeprom Address Map 104 Bit1 Bit0 D4mode Bit7 Bit6 Name modeMarket Eeprom address Eeprom setting Bit3 Bit2 D4mode C413MAIN component layout Component Layout Appendix Component Layout 107 Ref No Description Parts ListParts list Stylus C40UX/C40SX/C20UX/C20SX Exploded Diagram Exploded Diagram Appendix 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