5-2. Copy Quality Troubleshooting
1. Received Copies
If there is no fault in the transmitting terminal or on the line, but the copy quality is bad, either:
• Check that the printer cover is closed properly.
• Check the thermal head pulse width.
• Clean the thermal head (soft cloth, do not use water)
• Replace the thermal head or FCU.
If the output is always stretched: Check the printer mechanism and timing belts.
2. Copies made in Copy Mode
The following faults must be considered in addition to the printer faults mentioned above.
Symptom
Causes
Remedies
Blank or black
Scanner or PCB failure
Replace FCU or SBU.
copies
Vertical lines Dirty mirror, lens, ex- Clean with a soft cloth
posure glass, or xenon
lamp
Error bit in CCD
Replace SBU.
5-4
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