Epson R310 service manual PG Adjustment, Setting PG Position

Page 89

EPSON Stylus Photo R300/R310

Revision A

3.3 Adjustment Except Adjustment Program

Following is adjustment except Adjustment Program.

3.3.1 PG Adjustment

[Adjustment Procedure]

1.Make both sides of the two Thickness Gauge (1.15mm and 1.31mm) clean by wiping with Bemcot with a little alcohol.

2.To make the PG position minus (-), turn the gear of "APG Assy." and match the flag centre of "Cam, CR, Right" with "PG Sensor".

[Purpose]

This adjustment is required when removing or replacing the following parts/units in order to secure the specified space between the print-side of the Print Head and the paper.

Carriage Unit

CR Guide Shaft

Bushing, Parallel Adjust, Left (Right)

(Including when having moved "Bushing Parallel Adjust, Left (Right)")

Gear of "APG Assy."

Cam, CR, Right

Flag

PG Sensor

Figure 3-5. Setting PG Position

3.Match the 0 position (Hole point of gear) of "Bushing, Parallel Adjust, Left (Right)" with the rib of "Frame, Main".

Bushing, Parallel Adjust, Left

Bushing, Parallel Adjust, Right

RibsRibs

Hole point

Hole point

Figure 3-6. Setting "Bushing, Parallel Adjust"

4.Move "Carriage Unit" to the centre of the printer and remove "Lever, Cartridge". Then, set the PG-Adjustment Dummy Cartridge.

ADJUSTMENT

Adjustment Except Adjustment Program

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Contents Epson Stylus Photo R300/R310 Page Precautions About This Manual Revision Status Contents Troubleshooting Sensor check point Troubleshooting Flowchart Motor, Coil ResistanceLED/LCD Indication and STM3 Reaches about 90% Data error Troubleshooting This error is detected when CD/DVD Tray Check Points for Communication Error to Each Phenomenon Unit Level TroubleshootingCheck Points for Paper Out Error to Each Phenomenon Is ejected without being set at the print Start position Lever, Change Check Points for Paper Jam Error to Each Phenomenon Occurrence Phenomenon Detail Faulty Part Check Point Remedy Paper Guide, Upper Check Points for CD/DVD Guide Error to Each Phenomenon CDR/DVDR Check Points for CD/DVD Tray Error to Each Phenomenon10. Check points for Memory Card Error to Each Phenomenon 11. Check Points for Fatal Error to Each Phenomenon 13. Check Points for Abnormal Sound 14. Check Points for Defective Print Quality Refer to Section At operation LD Roller With a soft cloth Disassembly and Assembly Precautions Tools Service Completion Pre-Shipment Check ListPre-Shipment Checks ToolsDisassembly and Assembly † Caution for disassembly/assembly of Printer Mechanism † How to secure the quality for reassembled products Disassembly † External View Removing Paper Support AssyRemoving Housing, Upper Removing Housing, UpperReinstalling Printer Cover Paper Support Assy./Housing, Upper Removing Housing, MiddleMounting Panel FFC Vertical Direction 4 ± 1mm Horizontal Direction 1-2mm Removing Porous Pad, Paper Guide, FrontRemoving Panel Board Removing Stacker Assy 14. Reinstalling Stacker AssyRemoving Main Board Connectors connected to C536 Main BoardAssy. with a two-sided tape „ Make sure to match Panel FFC and the lateral faceShield Plate, M/B and then attach it to Main Board Adjustment † Required 18. Removing ASF Assy Removing ASF AssyTorsion Spring 20. Removing Holder, Shaft Assy Removing Holder, Shaft Assy„ Removing LD Roller † Reinstalling LD RollerLD Roller Removing CR Motor 26. Removing APG Assy Removing APG AssyRemoving Print Head PG Adjustment29. Removing Carriage Unit Removing Carriage Unit30. Removing Carriage Unit „ Removing CR Encoder Sensor Board „ Removing Pulley, Driven„ Removing Csic Board „ Removing PW Sensor BoardSlider, Holder, Scale Adjustment † Required Upper Removing Paper Guide, Upper38. Removing Printer Mechanism/Housing, Lower Removing Printer Mechanism/ Housing, LowerNot to drop and damage them † When lifting up Printer Mechanism, Lever, ChangeCombination Gear, 27.2, 19.2 may detach and drop. Take care 42. Installing Waste Ink Pads Left Removing Power Supply Unit 47. Removing CDR Guide Assy Removing CDR Guide Assy49. Removing CDR Guide Assy Removing Ink System † External View † Procedure for Removing† Do not remove the ink tube which is connected to Cap Assy Pump Assy52. Connecting Point for the ink tube Disassembly and Assembly Transform Star Wheels of Frame EJ Assy Removing Paper Guide, Front/Roller EJ Assy55. Removing Paper Guide, Front/Roller EJ Assy 56. Removing Paper Guide, Front/Roller EJ Assy Adequate dose to the specified points Removing PF Motor Adjustment Adjustment Items Servicing Adjustment Item ListFunction Item Purpose Adjustment Outline Tool Used Media Maintenance FunctionsAppendix Check Pattern PrintingAdjustment Item Replacement Part-Based Adjustment PrioritiesPaper Guide Front Removal Head ID Input Market SettingUSB ID Input Bi-d Adjustment Head Angular AdjustmentFirst Dot Adjustment PW Sensor Adjustment9 A4 Normal Paper Print Offset Input for CR Motor Calorific Limitation10 A4 Photo Quality Inkjet Paper Print 11 A4 Photo Paper/ Glossy Photo Paper printSetting PG Position PG AdjustmentSetting Thickness Gauge 12. PG Checking Maintenance Service Maintenance CleaningDisplay for Status Monitor Lubrication Point Lubrication10mm Right side surface of smaller shaft of Frame EJ Inside periphery surface of Cam, CR, Right Pulley, Driven Assy Overview 100 Overview 101 Appendix Exploded Diagram Electrical Circuits Page Page Model PM-D750, Stylus Photo R300/310 Model Stylus Photo R300/310 Board C536PNL