Olivetti PF-P09, Service Manual

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Field Service Ver. 1.1 May 2011 22. IMAGE QUALITY PROBLEM
369
TROUBLESHOOTING
22.2.25 Printer 4-color: white lines, white bands, colored lines and colored bands
in main scan direction
A. Typical faulty images
B. Troubleshooting procedure
A02EF4C508DA
White lines White bands Colored lines Colored bands
Step Section Check item Result Action
1 Transfer belt unit Fingerprints, oil, or other foreign
matter is evident on the transfer
belt.
YES Clean with specified solvent.
(See Maintenance.)
2 Transfer belt is dirty or scratched. YES Clean dirty belt with a soft cloth.
Change transfer belt unit if belt is
damaged.
3 Transfer roller
unit Transfer roller is dirty or scratched. YES Change transfer roller unit.
4 Paper path There is foreign matter on paper
path. YES Remove foreign matter.
5 Image transfer paper separator
fingers are damaged or dirty. YES Clean or change.
6 Fuser unit Fusing entrance guide plate is dirty
or damaged. YES Clean.
Change fuser unit.
7 Fusing paper separator fingers are
dirty. YES Clean.
8 Neutralizing
brush The resistance values between the
neutralizing brush and the ground
terminal is not
f
.
NO Check the contact.
Change neutralizing brush.
9 The problem has been eliminated
through the checks of steps up to 8. NO Change printer control board
d-Color MF2400