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PROGRAM PROM *
Instruction
1.
Set power switch to O (OFF).
Wait 5 seconds. Set power
switch to 1 (ON).
2.
Press the CLEAR switch.
3.
Run a diagnostic self–test
(page 4–14).
RIBBON
Instruction
1.
Wind the ribbon by hand and
check for folds, tears, holes,
fraying.
2.
Install a new ribbon.
3.
Run a diagnostic self–test
(page 4–14).
Troubleshooting
Indication
PROGRAM PROM *
message.
PROGRAM PROM *
message.
PROGRAM PROM *
message.
Indication
Ribbon damaged.
—
RIBBON message.
Yes
Step 2.
Return printer to
normal operation.
Step 3.
Return printer to
normal operation.
Replace the
Return printer to
program PROM
normal operation.
chips on the DCU
PCBA.
Yes
Step 2.
If folded but
otherwise okay,
rewind and
reinstall the
ribbon.
Step 3.
Replace one at a
Return printer to
time until the
normal operation.
message
disappears: ribbon
control PCBA
(page 6–10),
mechanism driver,
or MCU PCBA
(page 6–72).
No
No
—
4–9
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Table of Contents
Troubleshooting
