Gradation Reproduction Failure - Konica Minolta MagiColor 1600W Service Manual

Field Service Ver. 1.0 Nov. 2008
19.1.6

Gradation reproduction failure

A. Typical faulty images
B. Troubleshooting procedure
Step Section
Imaging
1
cartridge
2 PH unit
IDC sensor
3
board
4
4036fs4048c0
Check item
Is the outside dirty?
Is the window surface dirty?
Is the sensor dirty?
Have steps 1 to 3 eliminated the
problem?
19. Image quality problems
4036fs4049c0
Result Action
YES Clean.
YES Clean.
YES Clean.
Replace the toner cartridge.
→ Replace the PH unit.
NO
→ Replace the IDC sensor board.
→ Replace the high voltage unit.
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