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Troubleshooting
Service
5.2 REPAIR BY UNIT REPLACEMENT
You
can correct most
problems by
the unit
and
the printer when necessary.
Refer to Table 5-3,
the problem, and&n follow the steps in
flowchart indicated.
-
Table 5-3. Symptoms and Reference Pages
I
Symptom
I
Problem
The printer does not operate
carnage does not move.
when the
is on.
POWER LED does not
1
carriage moves away from home position at
Carriage operation is
power on.
abnormal.
carriage returns to home position correctly, but
2
the printer fails to enter ready mode.
Carriage operation is normal,
but the self-test is printed
self-testis not printed.
Cl Some of the dots are not printed.
3
incorrectly.
Printing is normal, but paper
The printer does not feed the paper at all.
feeding is abnormal.
printer feeds paper, but the line spacing varies.
4
Control panel operation is
the LF button is pressed, no paper is fed.
abnormal.
I
Data sent by the host
carriage operates
at power on and the
computer is printed
self-test is printed correctly, but print data from the
6
incorrectly.
host computer is not printed
Note:
Be
sure to perform the appropriate adjustments below.
1. When you replace the C117 MAIN board assembly, perform these adjustments:
Bidirectional printing adjustment
Platen gap motor value adjustment
2. When you replace or disassemble the
motor orPG sensor, perforrnthese adjustments:
Platen gap motor value adjustment
motor backlash adjustment
3. When you replace or disassemble the CR motor, perform the carriage timing belt tension
adjustment.
4. When you disassemble the printer mechanism, perform these adjustments:
Carriage guide shaft parallelism adjustment
Platen angle adjustment
Platen gap motor value adjustment
motor backlash adjustment
Bidirectional printing adjustment
Carriage timing belt
adjustment
Tractor wire spring
tension adjustment
.-., ,
Rev.
Содержание C117001-N - DFX 5000+ B/W Dot-matrix Printer
Страница 1: ...EPSON TERM NAL PR DFX 5000 NTER SERVICE MANUAL EPSON ...
Страница 152: ...DFX 5000 Service Manual Troubleshooting Table 5 5 C117 PSB PSE Board Assembly Component Repair continued Rev A 5 15 ...
Страница 153: ...Ttvublestmting mx 60 Serv ce Ahmu8J Table 5 5 C117 PSBIPSE Board Assembly Component Repair continued 6 16 Rev A ...
Страница 155: ...Troubleshooting DlW50 Service Wnual Table 5 6 C117 MAIN Board Assembly Component Repair continued u 5 18 Rev A ...
Страница 158: ...DFX 5000 Service Manual Troubleshooting Table 5 6 C117 MAIN Board Assembly Component Repair continued Rev A S 21 ...
Страница 159: ...Troubleshooting DF 50tM Service Manual Table 5 6 C117 MAIN Board Assembly Component Repair continued k f L J s 22 Rev A ...
Страница 169: ...6 4 Rev A ...
Страница 170: ...DFX 5000 Sewice Manual Maintenance and Lubrication In Figure 6 4 Lubrication and Adhesive Diagram 3 Rev A S 5 ...
Страница 180: ...DFX 5000 Service Manual Appendix O I 1 T I I J I Figure A 3 C117 PSB Board Assembly Circuit Diagram Rev A A 1 1 ...
Страница 186: ...EPSON ...