Konica Minolta magicolor 1600W, Руководство по обслуживанию

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19. Image quality problems Field Service V er. 1.0 Nov. 200 8
128
magicolor 1600W magicolor 1650EN
T
roubleshooting
19.1.17 Pitch lines, pitch uneven density
A. Typical faulty images
B. Troubleshooting procedure
4138fs4507c0
A034F4C507DA
24mm
A034F4C508DA
25mm
Step Section Check item Result Action
1 Image check
Do faint lines occur at a pitch of
24 mm in the main scanning
direction?
YES
• For magicolor 1600W:
Execute [Image Refresh] using
the remote panel utility.
See P.53
• For magicolor 1650EN:
Execute [MAIN MENU] -
[QUALITY MENU] - [IMAGE
REFRESH].
See P.71
NOTE
• If one image refresh
sequence does not make the
faint lines less noticeable,
run it a second time.
Does uneven density at a pitch of
25 mm occur?
YES
• Leave the main unit to stand
idle under environment free of
high humidity.
2 Toner cartridge
Is the toner cartridge for each
color of toner installed in posi-
tion?
NO Reinstall.
3 PH unit
Is the PH unit secured in position
with the fixing screw?
NO Secure it in position.
4 Toner cartridge
Is the drive mechanism of the
toner Cartridge dirty or dam-
aged?
YES
Clean or replace the toner car-
tridge.
5
Imaging
cartridge
Is the photo conductor dirty,
scratched, or worn?
YES Replace the imaging cartridge.
6
2nd transfer
roller
Are the 2nd transfer roller and
drive mechanism dirty, deformed,
or worn?
YES Replace the 2nd transfer roller.
7 Fuser unit
Are the rollers and drive mecha-
nism of the fuser unit dirty,
scratched, deformed, or worn?
YES Replace the fuser unit.
8
Have steps 1 to 7 eliminated the
problem?
NO Replace the imaging cartridge.