Printer System: Low Image Density Or Rough Image - Konica Minolta bizhub 362 Service Manual

Field service
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Field Service Ver. 1.0 Dec. 2008
20.3.9

Printer System: Low image density or rough image

A. Typical Faulty Images
B. Troubleshooting Procedure
Step
Section
1
Imaging Unit
2
3
Tech. Rep. Mode
→ Image Den-
sity
4
Tech. Rep. Mode
→ Grid Voltage
Adjustment
5
-
ABCDE
ABCDE
ABCDE
ABCDE
ABCDE
Check Item
Image transfer current contact terminal
is dirty or deformed.
Developing bias contact terminal is dirty
or deformed.
Select Tech. Rep. Mode → [Tech. Rep.
Choice] → [Printer] → [Image Density].
The image problem can be corrected by
selecting an Image Density setting
toward the + end.
Select Tech. Rep. Mode → [Tech. Rep.
Choice] → [Printer] → [Grid Voltage
Adjustment].
The image problem can be corrected by
selecting an VG Adjust setting toward
the + end.
The problem has been eliminated after
performing step 4.
20. Image quality problem
4036fs4036c0
Result
YES
Clean.
Change Photo Conductor
Unit.
YES
Clean.
Change Photo Conductor
Unit.
YES
Make setting again.
YES
Make setting again.
NO
Change Photo Conductor
Unit.
Change PH Unit.
Change High Voltage
Unit.
Change Mechanical Con-
trol Board.
Action
279

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