Konica Minolta bizhub C35 Service Manual page 279

DRAFT
16. IMAGE QUALITY PROBLEM
16.2.17 Printer monocolor: gradation reproduction failure
A. Typical faulty images
B. Troubleshooting procedure
Step Section
1 Photo/density
2 PH unit
3 IDC sensor
4
240
Check item
Original type and screen pattern are
selected properly.
The surface of the PH window is
dirty.
The surface of the IDC sensor is
dirty.
The problem has been eliminated
through the checks of steps up to 3.
Field Service Ver. 1.0 Feb. 2010
Result Action
NO Change screen pattern.
YES Clean with cleaning jig.
YES Clean.
NO Change imaging unit.
→ Change printer control board
→ Change PH unit.
→ Change high voltage unit.
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