Pq4 Black Lines - Xerox 8830 Service Manual

PQ4 Black Lines

Symptom/check
Black lines appear in the direction of media
feed.
PQ4 Black Lines
Probable Cause
1. Developer Bias and Transfer Corotron
voltage set incorrectly
2. Contaminated, damaged or disconnected
Charge Scorotron
3. Poor cleaning
4. The surface of the heat roll is damaged.
5. The drum surface is contaminated or
damaged.
6. The fuser temperature is too high.
7. Contaminated or damaged mag roll.
8. Defective Transfer/Detack Corotron.
1/98
3-12
Corrective Action
1. Ensure that Tag 19 is installed.
2. Clean/replace or check the connections to
the charge scorotron (PL 9.3).
3. Replace the Cleaner Blade (REP 9.4).
4. Determine and fix the cause of the damage
to the heat roll. Replace the heat roll
(REP 10.2).
5. Determine and fix the cause of the damage
to the drum. Replace the Drum (REP 9.3).
6. Adjust the Fuser temperature (ADJ 10.1)
7. Check for foreign objects on the mag roll.
8. Check / replace the Transfer / Detack
Corotron. (REP 9.1).
8830