EPSON Stylus COLOR 670
Revision A
8
Operating Principles
Overview
..................................................................................................... 31
Printer Mechanism ................................................................................. 31
Printhead ................................................................................................ 33
Printing Process ................................................................................. 34
Printing Method .................................................................................. 35
Carriage Mechanism .............................................................................. 36
Platen Gap (PG) Adjustment Mechanism ........................................... 36
Paper Feeding Mechanism .................................................................... 37
Paper Loading Mechanism (ASF Unit) ................................................... 38
Ink System Mechanism .......................................................................... 40
Pump Unit and CR Lock Mechanism .................................................. 40
Capping Mechanism ............................................................................... 41
Ink Sequence ......................................................................................... 42
Electrical Circuit Operating Principles
.................................................... 43
C301PSB/PSE Board ............................................................................. 43
C301MAIN Board ................................................................................... 45
Main elements .................................................................................... 46
Printhead Driver Circuit ...................................................................... 47
PF Motor (PF/ PUMP/ ASF Motor) Driver Circuit ............................... 48
CR Motor Driver Circuit ...................................................................... 49
Reset Circuit ....................................................................................... 49
EEPROM Control Circuit .................................................................... 50
Sensor Circuit ..................................................................................... 51
Troubleshooting
Overview
..................................................................................................... 53
Unit Level Troubleshooting
...................................................................... 54
Printer does not operate at power on ..................................................... 55
Error is detected ..................................................................................... 55
Failure occurs during printing ................................................................. 56
Printer does not feed paper correctly ..................................................... 56
Control panel operation is abnormal ...................................................... 57
Unit Repair (Power Supply Board)
........................................................... 57
Unit Repair (Control Board)
...................................................................... 58
Unit Repair (Printer Mechanism)
.............................................................. 61
Disassembly and Assembly
Overview
.................................................................................................... 67
Precautions ............................................................................................ 68
Tools ...................................................................................................... 69
Work Completion Check ........................................................................ 70
Disassembly
.............................................................................................. 71
Housing Removal ................................................................................... 72
Circuit Board Assembly Removal ........................................................... 73
Control Panel Removal .......................................................................... 75
Ink Absorber Tray Assembly (Waste Ink Pad) Removal ........................ 76
Printer Mechanism Disassembly ............................................................ 77
Printhead Removal ............................................................................. 77
Pump Assembly / Cap Assembly Removal ........................................ 80
CR Motor Assembly Removal ............................................................ 82
PF Motor Assembly Removal ............................................................. 83
ASF Assembly Removal ..................................................................... 85
ASF LD Roller Assembly Removal ..................................................... 87
LD Roller Assembly Disassembly ...................................................... 92
CR Assembly Removal ...................................................................... 93
PE Sensor Assembly Removal .......................................................... 95
PF Roller Assembly Removal ............................................................. 96
CR HP Sensor Removal ..................................................................... 98
Содержание Stylus Color 670
Страница 1: ...EPSON EPSONStylusCOLOR670 Color Inkjet Printer SEIJ99016 SERVICE MANUAL ...
Страница 6: ...Revision Status Revision Issued Date Description Rev A January 27 2000 First Release ...
Страница 10: ...C H A P T E R 1 PRODUCTDESCRIPTION ...
Страница 30: ...C H A P T E R 2 OPERATINGPRINCIPLES ...
Страница 52: ...C H A P T E R 3 TROUBLESHOOTING ...
Страница 66: ...C H A P T E R 4 DISASSEMBLYANDASSEMBLY ...
Страница 99: ...C H A P T E R 5 ADJUSTMENT ...
Страница 122: ...C H A P T E R 6 MAINTENANCE ...
Страница 129: ...C H A P T E R 7 APPENDIX ...
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