67Troubleshooting
IMPORTANT
Do not attempt field repairs of electronic components or assemblies.
Replace a malfunctioning electronic assembly with an operational
spare. Most electronic problems are corrected by replacing the printed
circuit board assembly, sensor, or cable that causes the fault
indication. The same is true of failures traced to the hammer bank:
replace the entire shuttle frame assembly. It is not field repairable.
5. Replace the defective part or assembly.
6. Test printer operation after every corrective action.
7. Reinstall any parts you replaced earlier that did not solve the problem.
8. Stop troubleshooting and return the printer to normal operation when the
reported symptoms disappear.
Table 3. General Symptom List
Symptom
Troubleshooting
Procedure
Communications Failures Page 133
Jams
CLEAR JAM message instead of LOAD
FORMS when printer is out of paper
Page 115
CLEAR JAM message will not clear and
paper does not move
Page 116
CLEAR JAM message will not clear but
paper moves
Page 116
Operator Panel
Black squares on operator panel display Page 114
Operator panel blank Page 120
Operator panel display shows garbled,
broken characters
Page 120
Operator panel keys do not work Page 121
Power / IML Failures
No power, and the operator panel is blank,
and the card cage fan is not running
Page 119
To Next Page
Loading...
Need help?
General
