LQ-670 Service Manual
Rev. A
3-4
3.2 Printer Disassembly and Assembly
This section describes procedures for disassembling the main components of the printer.
Since re-assembling the printer can be done by simply performing the disassembly
procedures in reverse order, this chapter does not describe the assembly procedures. If
necessary, special notes on re-assembling or adjusting a component are given at the end of
each procedure.
Before disassembling any part of the printer, note the warnings in Section 3.1.1.
Make sure to remove any cables and the accessories attached to the printer; such
as the ribbon cartridge, the sheet guide, the platen knob, from the printer before
disassembly.
Note) Exploded diagrams in APPENDIX show you how each component fit together. Refer
to them as necessary.
The flowchart below show you the basic order for disassembly.
CAUTION
START
HOUSING, UPPER
Removal
EP-ROM
Removal
Printhead
Removal
Printer Mechanism
Removal
Ribbon Mask
Removal
C214 MAIN Board
Removal
C214 PSB/PSE Board
Removal
PAPER EXIT ASSY.
Removal
Ribbon Mask Holder
Removal
PW DETECTOR (Top)
Removal
MOTOR, CR
Removal
CARRIAGE ASSY.
Removal
PAPER GUIDE
Removal
PLATEN ASSY.
Removal
RATCHET, RD
Removal
MOTOR, PF
Removal
HP DETECTOR
Removal
PE DETECTOR (FR)
Removal
PE DETECTOR (RE)
Removal
LEVER, RELEASE
Removal
PG DETECTOR
Removal
REL DETECTOR
Removal
TRACTOR ASSY.
Removal
Figure 3-1. Disassembly Flowchart
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 ...