Chapter 4 Adjustments
Rev. A
4-1
4.1 Adjustment Overview
4.1.1 Required Adjustments
This section describes what adjustments are required after any part is removed or replaced. The following
table shows the relationship between the repaired item and the adjustment.
Required / Adjustment
Platen Gap
Bi-d Print
Alignment
Factory Settings
Print Head Removal or
Replacement
❍
(*2)
---(*1)
---
Printer Mechanism
Replacement
---
❍
❍
Main Board Replacement
---
❍
❍
Timing Belt Replacement
❍
❍
---
Platen Roller Replacement
or Removal
❍
---
---
CR Unit Replacement or
Removal
❍
❍
---
CR Motor Removal or
Replacement
---
❍
---
PW(TOP) Detector
Replacement
---
---
❍
EEPROM Initialization
---
❍
❍
Note*1)
: --- means adjustment is not required.
Note*2)
:
❍
means adjustment is required.
4.1.2 Required Adjustment Tools
The following table shows the tools required for each adjustment.
Adjustment
Required Tool
Page
Platen Gap
Thickness Gauge
4-2
Factory Settings
Settings Diskette
4-3
Bi-d Print Alignment
Settings Diskette
4-3
Table 4-1. Required Adjustments
Table 4-2. Required Adjustment Tools
Summary of Contents for LQ 670 - B/W Dot-matrix Printer
Page 1: ...EPSON IMPACT DOT MATRIX PRINTER EPSON LQ 670 SERVICE MANUAL SEIKO EPSON CORPORATION 4007875 ...
Page 5: ...v REVISION SHEET Revision Issued Data Contents Rev A May 28 1997 First issue ...
Page 114: ...Chapter 6 Maintenance 6 1 Preventive Maintenance 6 1 ...
Page 116: ...LQ 670 Service Manual Rev A 6 2 Figure 6 1 Lubrication Points ...
Page 122: ...LQ 670 Service Manual Rev A A 5 A 2 Circuit Diagram Figure A 2 C214Main Board Circuit Diagram ...
Page 123: ...Appendix Rev A A 6 Heat Sink Q1 D51 Figure A 3 C214PSB Board Circuit Diagram ...
Page 124: ...LQ 670 Service Manual Rev A A 7 Heat Sink Q1 D51 Figure A 4 C214PSE Board Circuit Diagram ...
Page 125: ...Appendix Rev A A 8 A 3 Component Layout Figure A 5 C214 Main Board Component Layout ...
Page 127: ...Appendix Rev A A 10 A 4 Exploded Diagram Figure A 8 Exploded Diagram ...
Page 128: ...LQ 670 Service Manual Rev A A 11 Figure A 9 Exploded Diagram ...
Page 129: ...Appendix Rev A A 12 Figure A 10 Exploded Diagram ...
Page 135: ...EPSON SEIKO EPSON CORPORATION ...