01/02
3-10
8825/8830 Printer
PQ 3, PQ 4
Print Quality
PQ 3 Bands PQ 4 Black Lines
Table 1 Bands Symptom / Check
Symptom/ check
Bands are 1 mm or more and
are perpendicular to the
media feed direction. High
density bands are called black
lines.
Probable Cause Corrective Action
1. Defective or intermittent
Charge Scorotron.
1. Check / clean / replace the
connections to the Charge
Scorotron ( PL 9.3).
2. Defective Transfer / Detack
Corotron.
2A. Check / replace the
Transfer / Detack Corotron. (
REP 9.9).
2B. Ensure that the Corotron
is installed in the correct posi-
tion.
3. Poor cleaning 3. Replace the Cleaner Blade
( REP 9.4).
4. Defective or contaminated
Drum.
4. Determine and fix the
cause of the damage to the
drum. Replace the Drum (
REP 9.3).
Table 1 Black Lines Symptom / Check
Symptom/ check
Black lines appear in the
direction of media feed.
Probable Cause Corrective Action
1. Developer Bias and Trans-
fer Corotron voltage set incor-
rectly
1. Ensure that TAG 19 is
installed.
2. Contaminated, damaged
or disconnected Charge
Scorotron
2. Clean/replace or check the
connections to the charge
scorotron ( PL 9.3).
3. Poor cleaning 3. Replace the Cleaner Blade
( REP 9.4).
4. The surface of the heat roll
is damaged.
4. Determine and fix the
cause of the damage to the
heat roll. Replace the heat
roll ( REP 10.2).
5. The drum surface is con-
taminated or damaged.
5. Determine and fix the
cause of the damage to the
drum. Replace the Drum (
REP 9.3).
6. The fuser temperature is
too high.
6. Adjust the Fuser tempera-
ture ( ADJ 10.1)
7. Contaminated or damaged
mag roll.
7. Check for foreign objects
on the mag roll.
8. Defective Transfer/Detack
Corotron.
8. Check / replace the Trans-
fer / Detack Corotron. ( REP
9.1).
To Next Page
Loading...
Need help?
General