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16. IMAGE QUALITY PROBLEM
16.2.29
Printer 4-color: poor color reproduction
A. Typical faulty images
B. Troubleshooting procedure
Step
Section
1
Paper
2
Transfer belt unit Terminal is dirty.
3
Transfer roller
unit
4
5
IDC sensor
6
252
Check item
Paper is damp.
Transfer roller is installed properly.
Charge neutralizing needle is not
separated and ground terminal is
connected properly.
Sensor is dirty.
The problem has been eliminated
through the checks of steps up to 5.
Field Service Ver. 1.1 Jun. 2010
Result
Action
YES Change paper to one just
unwrapped from its package.
YES Clean.
NO
Reinstall.
NO
Correct or change.
YES Clean IDC sensor and execute
the image stabilization.
NO
Change transfer belt unit.
Change printer control board.
Change high voltage unit.
Change MFP board.
A02EF4C527DA
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