Table 5-5.
of the PRINTER MECHANISM (Cont.)
Problem
Symptom
Cause
Checkpoint
Solution
Self-test printing is
A particular dot
The
is
Measure the coil
Replace the
abnormal.
fails to print.
defective.
of the
The nor-
mal value is ap-
proximately 45.5
ohms.
Check whether the
Replace the
dot wire is worn.
The printing is too
The
is
Check whether the
Replace the
light, or the print
defective.
tip of the dot wire
density is not
is worn.
uniform.
The platen gap is
Set the gap LEVER,
Adjust the gap.
not properly
G, ADJUST to the
Refer to Section
adjusted.
second position,
4.1.2, Platen Gap
and check the gap
Adjustment.
between the tip of
the
and
the PLATEN.
The appropriate
value is 0.46 mm.
Paper feeding is
Printing is per-
Foreign substances
Perform a visual
Remove any
formed, but the
are lodged in the
check of the paper
substance.
per is not fed, or is
paper path.
path.
not fed uniformly.
The MOTOR, PF is
Check that no
. Remove any
not driving the
substance is
substance.
gear correctly.
lodged between
. Replace the
the gears, and that
per-feed
the gears are not
tion gear.
broken or worn.
●
Replace the plat
en gear.
The MOTOR, PF is
Measure the coil
Replace the
defective.
for the
TOR,
MOTOR,
The approximate
value should be 79
ohms.
5 - 1 8
Summary of Contents for LG1-1070
Page 1: ...EPSON TERMINAL PRINTER LG1 570 lo7cJ L 4000566 REV B ...
Page 111: ...REV A Figure 6 2 LQ 570 Lubrication Points 6 3 ...
Page 112: ...REV B 6 4 ...
Page 125: ...REV B C3 11 C9 I 1 Figure A 10 BOARD ASSY POWER SUPPLY C062 PSB BOARD Component Layout A 1 3 ...
Page 127: ...REV B Zluo Zr Vlr alr Figure A 1 2 BOARD ASSY PANEL C062 PNL BOARD Component Layout A 1 5 ...
Page 128: ...Figure A 1 3 LQ 570 Exploded Diagram A 1 6 ...
Page 129: ...REV B A 1 9 ...
Page 133: ... I C 71 I Ila u 4 l t mm 151 m Figure A 1 8 LQ 107O Case Outline Drawing A 23 ...
Page 135: ...EPSON Printed in Japan 91 09 5 G ...
Page 137: ...LQ 570 1070 ActionPrinter 5000 5500 24 PIN DOT MATRIX PRINTERS TM LQ57AP5 ...
Page 138: ...L Q 5 7 0 1 0 7 0 SERVICE MANUAL EPSON Printed on Recycled Paper ...
Page 141: ......
Page 233: ...REV A No Replace printhead and PH cable Yes 5 Perform final t e s t 5 7 ...
Page 249: ...REV A Figure 6 2 LQ 570 Lubrication Points 6 3 ...
Page 250: ...REV B Figure 6 3 LQ 1 070 Lubrication Points 6 4 ...
Page 257: ... 5 3 R L ...
Page 261: ... I L N CNl L I r I 1 TT 1 C062 PSE Board 2002850 ...
Page 262: ...Pb CNl C062 PSE Board 2002850 ...
Page 263: ...CN1 RXSO PIUSE d I CO62 PNL Board 1 Excluding Japan ...
Page 267: ... C O 6 2 P N L QW CM YXT 2 DIP 5 1 s A S S Y 2 0 0 2 8 5 2 0 0 J3 DI I ...
Page 268: ... 2 ...
Page 269: ...REV B Figure A 14 LQ 1070 Exploded Diagram A 17 ...
Page 270: ...REV B x Figure A 15 Model 5E10 Exploded Diagram A 18 ...
Page 271: ...REV B Figure A 16 Model 5E60 Exploded Diagram A 19 ...
Page 274: ...REV A A 5 CASE OUTLINE DRAWING 3 6 8 m m Figure A 17 LQ 570 Case Outline Drawing A 22 ...
Page 275: ...REV B 151 I Figure A 18 LQ 1070 Case Outline Drawing A 23 ...
Page 306: ...Appendix B Figure B 16 Cl07 iMX lN Board Component Layout Epson LQ 570 1 070 B 29 ...