Low Image Density - Konica Minolta magicolor 1680MF Service Manual

Field Service Ver. 1.0 Nov. 2008
20.1.5

Low image density

A. Typical faulty images
B. Troubleshooting procedure
Step Section
1
Imaging
cartridge
2
3 PH unit
2nd transfer
4
roller
5 Media
IDC sensor
6
board
7
Check item
Is the outside dirty?
Is the contact dirty?
Is the window surface dirty?
Is the contact dirty?
Is the media damp?
Is the sensor dirty?
Have steps 1 to 6 eliminated the
problem?
http://www.manuals4you.com
20. Image quality problems
Result Action
YES Clean.
YES Clean.
YES Clean.
YES Clean.
Replace the media with new
YES media that has just been
unwrapped.
YES Clean.
Replace the toner cartridge.
→ Replace the Imaging car-
tridge.
→ Replace the 2nd transfer roller.
→ Replace the PH unit.
NO
→ Replace the IDC sensor board.
→ Replace the printer control
board.
→ Replace the high voltage unit.
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