Konica Minolta bizhub C360 Service Manual page 800

Field Service Ver. 2.1 Feb. 2012
23.3.38 Printer 4-color: back marking
A. Typical faulty images
B. Troubleshooting procedure
Step Section
1 Transfer roller unit Transfer roller is scratched or dirty.
2 Paper path
3 Fusing unit
4
5 Transfer belt unit
6
Check item
There is foreign matter on paper
path.
Fusing entrance guide plate is
scratched or dirty.
Lower fusing roller is scratched or
dirty.
Fingerprints, oil, or other foreign
matter is evident on the transfer
belt.
The problem has been eliminated
through the checks of steps up to 5.
23. IMAGE QUALITY PROBLEM
AA AA
A02EF4C530DA
Result Action
YES Change transfer roller unit.
YES Remove foreign matter.
YES Clean or change.
YES Change fusing unit.
YES Clean it with the tender cloth or
paper which is dusted with the
toner.
NO Change transfer belt unit.
→ Change high voltage unit.
745