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November 29, 1999
7.1.3 DIRTY BACKGROUND
Possible Cause (Scanner)
• Scanner shading correction error
Action:
1. Clean the shading white plate.
2. Replace the optical unit or SBU if necessary.
Possible Cause (Printer)
• Poor drum sensitivity.
• The charge is improperly applied.
• The hot roller is dirty.
Action:
1. Try replacing the cartridge.
2. Check to see if the hot roller surface is dirty.
• If it is, clean the roller.
• If not, go to step 3.
3. Check to see if all the charge bias terminals and the cartridge.
• If they are, check or replace the power pack.
• If not, fix the connections.
H306T502.WMF
COPY QUALITY TROUBLESHOOTING
H306T503.WMF
7-3
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