Diagnostic Information 2-37
4023-001
White Spots Service Check
Toner Smudges On Backside Service Check
FRU Action
1 Paper Check paper for moisture resulting from high
humidity.
2 • Image
Transfer
Roller
• High Voltage
Power Sup-
ply (HV1)
• Fuser
Frame
Resistor
Board
(PWB-R1)
•Printer Main
Engine
Board
(PWB-A)
The printer may have poor image transfer. Replace
the listed parts in the order given as necessary.
FRU Action
1 Fuser Unit Check for dust, toner or damage on the fusing
roller. Clean or replace as necessary.
2 Image Transfer
Roller
Check for dust, toner or damage to the image
transfer roller. Clean or replace as necessary.
3 Paper Path Clean the paper path inside the printer.
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