ASF Paper Loading Sequence | Epson C40UX guide

Stylus C40UX/C40SX/C20UX/C20SX

Revision A

Step 1

Hopper

LD roller

Step 2

When the paper is advanced with the PF roller, Change lever push down the Clutch lever as right figure and the Clutch lock tooth is disengaged from the Clutch gear. As the result, the drive from the PF motor is interrupted and the LD roller dose not rotate.

This position is the ASF home position.

The Paper return plate is set to avoid that the paper is slipped down from the paper set position.

LD roller shaft

Paper return plate

Change lever Clutch gear

Clutch lock tooth

Clutch lever

Clutch

Printer front side

When the paper is loaded (pick up) from the ASF unit, the Change lever moves to the printer front side with the CCW rotation of the PF motor pinion gear and

Tension spring 0.143 releases the Clutch lever. As the result, the Clutch turns back to the engagement position by the tension force of the Tension spring 0.143.

And the Clutch lock tooth is engaged with the Clutch gear as right figure.

The PF motor pinion gear rotates CW direction and the drive from the PF motor is transmitted to the ASF LD roller shaft through the Clutch lock tooth and the Clutch gear.

The ASF hopper release lever rotates with the ASF LD roller and release the ASF Hopper. The ASF hopper is pushed with the Compression spring

2.11and the paper is picked up with the ASF LD roller.

PF roller CCW

rotation

ASF Hopper release lever

Step 3

PF roller CW

rotation

Compression

spring 2.11

ASF Frame

LD roller shaft

Step 4

Paper return plate

The ASF LD roller rotates CW direction moreover and the Paper return plate is stored under the ASF frame.

The paper is advanced up to the PF roller. and the ASF LD roller & the clutch rotate to the “Step1” position. The Clutch lever is locked with the Change lever.

The drive from the PF motor is interrupted and the drive is transmitted to the PF roller side.

PF roller CCW

rotation

ASF hopper		PF roller CCW
release lever		rotation

Figure 2-13. ASF Paper Loading Sequence

Operating Principles

Overview

34

Image 34

Epson C40UX service manual ASF Paper Loading Sequence

Contents

Stylus C40UX/C40SX/C20UX/C20SX General Notice Precautions About This Manual Revision Status Contents Adjustment Disassembly Product Description Differences between the Stylus C20 and the Stylus C40 Delay of oparationEeprom 29 H bit 0 value Model Delay time during printing Throughput Printing Specification Physical SpecificationHorizontal Printable area Available dot CR Speed Input Data Buffer Electrical specificationPaper Feeding Feed condition Time Speed Reliability Safety ApprovalsEnvirormental Condition Acoustic Noise USB Interface Signal name In/Out Function descriptionParallel Interface Forward Channel Parameter Minimum Maximum Parallel I/F mode Typical time of tackParameter Pin No Signal Name ReturnG Functional description Parallel Interface Reverse Channel Prevention Hosts from Data Transfer Time-out IEEE1284.4 Protocol Panel Functions Operate SwitchControl Panel Printer Condition and Panel Status Errors Printer Initialization Paper Specification Paper Handling Printing Area Printable Area for Cut Sheet Margin Paper LMLeft RMRight TMTop Black BM Color BMSize Black Ink Cartridge Color Ink Cartridge Operating Principles Overview Printer Mechanism Printhead Printhead Sectional Drawing Ink Path Normal StateEjecting State Ink Cavity Carriage Mechanism Carriage Motor SpecificationItems Specifications Detection position I/C change position Paper Feeding Mechanism PF Motor Specifications† PF motor drive transmission path † Switch the PF motor drive to ASF unit side Paper Loading Mechanism ASF Unit † Transfer the PF motor drive to LD roller ASF unit function & PF Motor rotational direction† Clutch Mechanism 11. Disengage & Clutch mechanism † Paper Return Plate Pad holder 13. ASF Paper Loading Sequence Ink System Mechanism PF motor rotational direction & Ink System Mechanism 16. Cap Mechanism Wiper with the cap unit Non porous pad in cap 18. non porous pad in cap Stylus C40/C20 Ink Sequence † Manual Cleaning† Timer Cleaning † 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 2 C413 MAIN/B Board Main Elements Troubleshooting Sensor Check Point Sensor Name Check Point Signal Level Switch ModeMotor Location Check Point Resistance Error Condition and possible cause Troubleshooting with LED Error IndicationsError Indicator of Operation Panel Printer Status Indicators Priority Power Error Paper out error indication Step Detail phenomenon Check point Remedy Spur gear 35.2 is Rotating If it is no problem, proceed Paper jam error indication 12. Ink Out error indication 10. Paper jam error indication11. Paper Jam Error indication Detail phenomenon Check point Remedy 13. 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 18. Dot missing occur and it is not recovered with CL 19. Dot missing occur and it is not recovered with CL 20. Print quality is not good 21. Print quality is not good 22. Print quality is not good Disassembly and Assembly Precautions Printer Et que le cordon d’alimentation soit debranche Screws Name and Specification Outward FormTools Name Supplier Parts No Classifi Check Point Status Cation Work Completion CheckWork Completion Check Classifi Check Point Status Disassembly Disassembling Flowchart Upper housing Upper housing removalEdge guide ASF unit removal CBP 3⋅ CBS P2 3⋅ Waste 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 CBS 3⋅ Paper eject roller removalProtrusion Front Frame Paper Eject roller Gear Main board removal Switch cover HooksUSB Type CBS 3⋅ Parallel Type F.S-Tite 3⋅ 21. Disconnecting the connectors 22. Removing the Main board CR motor removal Carriage cover Printhead unit removalCarriage unit Printhead unit 30. Disconnecting the FFC LD unit removal LD unit Cables Printer mechanism removal Adjustment Required Adjustment Required AdjustmentPerformance Priority Adjustment Program Initial Setting menu Basic adjustment items Adjustment Program featureMain Menu Service Bi-d adjustment even if the paper is out in the ASF. When Feed command until the paper is set in the ASF Eeprom initial setting Head ID Read out the Head ID from the Eeprom 10. Choose the Bi-d adjustment Bi-D 13. Bi-d adjustment input menu USB ID 15. Choose the USB ID input menu Top margin 16. Choose the Top margin menu Initial ink charge Head cleaningFor the initial ink charge operation is so large Refurbishment for DOA 21. Choose the Refurbishment for DOA menu Protection counter check Check the present counter value Clear the present counter value Excepting ESP Eepron check 26. Eeprom check function 29. Eeprom backup data Eeprom back up data 15 A4 pattern will print 31. A4 Check pattern 32. A4 Check pattern Maintenance Cleaning † Maintenance Error Clear Service Maintenance† Head Cleaning Lubrication Main frame Right side view Lubrication Type/PointLubrication Type/Point Remarks 200mm Appendix Connector Summary Major Component Unit CN9-Printhead Pin Eeprom Address Map Address Explanation SettingEeprom Address Map Factory Appendix Eeprom Address Map 103 Appendix Eeprom Address Map 104 Bit3 Bit2 D4mode Bit7 Bit6 Name modeMarket Eeprom address Eeprom setting Bit1 Bit0 D4mode Component Layout C413MAIN component layout Appendix Component Layout 107 Parts list Parts ListRef No Description Exploded Diagram Stylus C40UX/C40SX/C20UX/C20SX 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