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Field Service Ver. 1.1 Jun. 2010
16.2.20
Printer monocolor: colored spots
A. Typical faulty images
B. Troubleshooting procedure
Step
Section
1
Imaging unit
2
3
AA
Check item
Developing bias contact terminal
makes good connection.
The surface of the PC drum is
scratched.
Dirty on the outside.
16. IMAGE QUALITY PROBLEM
Result
Action
NO
Clean contact terminal and
check terminal position.
YES Change imaging unit.
YES Clean.
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