Epson Stylus PHOTO 890 Service Manual page 8

3.1.1.4 Remedies for the Paper Jam Error ..................................................... 67
3.1.1.5 Remedies for No Ink Cartridge Error/Ink Cartridge Problem ........... 67
3.1.1.6 Remedies for Maintenance Request Error ......................................... 68
3.1.1.7 Remedies for Fatal Error ................................................................... 69
3.1.2 Isolating the Faulty Part on the Power Supply Board ................................ 72
3.1.3 Isolating the Faulty Part according to the Phenomenon ............................ 72
Chapter 4 DISASSEMBLY AND ASSEMBLY
4.1 Overview ............................................................................................................ 78
4.1.1 Precaution for Disassembling the Printer .................................................. 78
4.1.2 Tools .......................................................................................................... 79
4.1.3 Specifications for Screws .......................................................................... 80
4.1.4 Service Checks After Repair ..................................................................... 81
4.2 Disassembly Procedures ................................................................................... 82
4.2.1 HOUSING Removal .................................................................................. 83
4.2.2 Circuit Board Assembly Removal ............................................................. 84
4.2.3 Panel Unit Removal ................................................................................... 86
4.2.4 Printhead Unit Removal ............................................................................ 88
4.2.5 TRAY, ABSORBER ASSEMBLY Removal ............................................ 89
4.2.6 Ink Unit Removal ...................................................................................... 91
4.2.7 MOTOR ASSEMBLY, CR Removal ........................................................ 94
4.2.8 MOTOR ASSEMBLY, ASF Removal ...................................................... 95
4.2.9 DE Unit Removal ...................................................................................... 96
4.2.10 ASF Unit Removal .................................................................................. 99
4.2.10.1 SHAFT, ROLLER, LD Removal .................................................. 101
4.2.10.2 ROLLER ASSEMBLY, LD, RIGHT/LEFT Removal ................. 106
4.2.11 Carriage Unit Removal .......................................................................... 107
4.2.12 BOARD ASSEMBLY, ENCODER Removal ....................................... 109
4.2.13 ROLLER, PF Removal .......................................................................... 110
4.2.13.1 SCALE, PF Installation ................................................................. 113
4.2.14 MOTOR ASSEMBLY, PF Removal ..................................................... 116
4.2.15 PE Sensor Unit Removal ....................................................................... 117
Chapter 5 ADJUSTMENT
5.1 Overview .......................................................................................................... 119
5.1.1 Adjustment Items ..................................................................................... 119
5.1.2 Adjustment Tools ..................................................................................... 120
5.2 Adjustment ...................................................................................................... 121
5.2.1 Parallelism Adjustment ............................................................................ 121
5.2.1.1 Using PG Adjustment Tool ............................................................. 121
5.2.1.2 Using Thickness Gauge ................................................................... 124
5.2.2 Backlash Adjsutment ............................................................................ 125
5.2.3 Adjustment Program Feature ................................................................... 127
5.2.3.1 How to Install the Program ............................................................. 128
5.2.3.2 How to Uninstall the Program ......................................................... 128
5.2.4 Starting the Service Program ................................................................... 128
5.2.4.1 Adjusting Program Initial Setting ................................................... 128
5.3 Individual Adjustment Program ................................................................... 130
5.3.1 Head ID .................................................................................................... 130
5.3.1.1 Head ID Input ............................................................................... 130
5.3.1.2 Head ID Check ................................................................................ 132
5.3.2 Bi-Directional Adjustment .................................................................... 133
5.3.2.1 Input Bi-D Adjustment Value ...................................................... 135
5.3.2.2 Check Present Adjustment Data ...................................................... 136
5.3.3 Input/Check USB ID ............................................................................... 137
5.3.3.1 Input USB ID .................................................................................. 138
5.3.3.2 Check USB ID ................................................................................. 138
5.3.4 Maintenance ............................................................................................. 139
5.3.4.1 Head Cleaning Operation ................................................................ 139
5.3.5 Ink Charge Operation ............................................................................. 140
5.3.6 Refurbishment for DOA .......................................................................... 141
5.3.7 Protection Counter ................................................................................... 143
5.3.7.1 Check the Present Counter Value .................................................... 143
5.3.7.2 Clear the Protection Counter Value ................................................ 143
5.3.8 Appendix Items ........................................................................................ 145
5.3.8.1 CSIC Information ......................................................................... 145
5.3.8.2 EEPROM Data Check ................................................................... 146
5.3.8.3 Changing EEPROM Data .............................................................. 146
5.3.9 A4 Check Pattern Printing ....................................................................... 147
5.4 Sequential Repair Adjustment Program ...................................................... 149
5.4.1 Function ................................................................................................... 149
5.4.1.1 How to start the program ................................................................. 149
5.4.1.2 Printhead Removal .......................................................................... 150
5.4.1.3 Printhead Replacement .................................................................... 151
5.4.1.4 Main Board Replacement ................................................................ 152
5.4.1.5 Carriage Unit Replacement/ Removal ............................................. 152
5.4.1.6 CR Motor Replacement ................................................................... 152
5.4.1.7 Printer Mechanism Replacement .................................................... 152