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4026-0XX
FRU
2
Cables/Con-
nectors
3
HVPS Con-
tacts
4
HVPS Cover
5
Printhead
Assembly,
Engine
Board, HVPS
White or Black Lines or Bands
Note: Poor image development, incorrect charging of the photocon-
ductor, incorrect laser exposure, poor image transfer, or poor fusing
causes white/black bands or lines.
FRU
1
Toner Car-
tridge
2
Photoconduc-
tor Unit
2-40
Action
Be sure the printhead cables to the engine
board are properly seated.
Be sure the HVPS is correctly installed. Be sure
the two high voltage contacts and the ground
contact are not damaged. Repair as necessary.
Check the HVPS cover for pitted or damaged
contacts. Replace as necessary.
If all the previous checks are correct, replace the
following FRUs one at a time in the order shown:
Printhead Assembly
Engine board
HVPS
Action
Remove the toner cartridge and gently shake to
evenly distribute the toner. Check the cartridge
drive gear and contacts for damage. Replace
the toner cartridge as necessary.
Check the photoconductor unit for damage to
the drive gear or contact. Replace as necessary.
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