4–9
Troubleshooting
PROGRAM PROM *
Instruction
Indication
Yes
No
1.
Set power switch to O (OFF).
Wait 5 seconds. Set power
switch to 1 (ON).
PROGRAM PROM *
message.
Step 2.
Return printer to
normal operation.
2.
Press the CLEAR switch.
PROGRAM PROM *
message.
Step 3.
Return printer to
normal operation.
3.
Run a diagnostic self–test
(page 4–14).
PROGRAM PROM *
message.
Replace the
program PROM
chips on the DCU
PCBA.
Return printer to
normal operation.
RIBBON
Instruction
Indication
Yes
No
1.
Wind the ribbon by hand and
check for folds, tears, holes,
fraying.
Ribbon damaged.
Step 2.
If folded but
otherwise okay,
rewind and
reinstall the
ribbon.
2.
Install a new ribbon.
—
Step 3.
—
3.
Run a diagnostic self–test
(page 4–14).
RIBBON message.
Replace one at a
time until the
message
disappears: ribbon
control PCBA
(page 6–10),
mechanism driver,
or MCU PCBA
(page 6–72).
Return printer to
normal operation.
Summary of Contents for P9012
Page 1: ...P N 132305 001 Rev E P9012 Multifunction Line Printer...
Page 49: ...2 31 Principles of Operation Power Supply PCBAs 1 3 SHORT OPEN Figure 2 21 Power Supply PCBA...
Page 58: ...2 40 Principles of Operation...
Page 84: ...4 18 Troubleshooting...
Page 118: ...5 34 Alignments and Adjustments...
Page 203: ...6 85 Replacement Procedures This page intentionally left blank...
Page 214: ...6 96 Replacement Procedures...
Page 236: ...A 22 Power Paper Stacker Maintenance...
Page 246: ...D 2 Torque Table...
Page 254: ...Index 6...
Page 255: ......
Page 256: ...132305 001 Rev E...