16. Image quality problem
Field Service Ver. 1.0 May 2006
234
magicolor 7450
T
roubleshooting
16.3.19
4-Color: incorrect color image registration
A. Typical Faulty Images
B. Troubleshooting Procedure
AA
AA
AA
4036fs4032c0
Step
Section
Check Item
Result
Action
2
Machine
condition
Vibration is given to the machine
after main power switch has been
turned ON.
YES
Turn off the Main Power Switch
and turn it on again more than 10
seconds after.
3
Transfer Belt
Fingerprints, oil, or other foreign
matter is evident on the Image
Transfer Belt.
YES
Clean with specified solvent.
(See Maintenance.)
4
Transfer Belt is dirty or scratched.
YES
Clean dirty belt with a soft cloth.
Change Transfer Belt if belt is
damaged.
5
Drive coupling to the machine is
dirty.
YES
Clean.
6
Imaging Unit
The surface of the PC Drum is
scratched.
YES
Change Imaging Unit.
7
Transfer Roller
Transfer Roller is installed properly.
NO
Reinstall.
8
Transfer Roller is dirty or scratched.
YES
Change Transfer Roller.
9
[SERVICE
MENU]
→
[ALIGN-
MENT]
→
[FUSER
SPEED]
Brush effect or blurred image
occurs.
YES
Readjust Fusing Transport
Speed.
10
[SERVICE
MENU]
→
[ALIGN-
MENT]
→
[REGISTRA-
TION]
Check the specific color in which
color shift occurs.
YES
Perform “REGISTRATION.” If
color shift is not corrected even
with a correction of ± 1 dot, go to
next step.
11
The problem has been eliminated
through the checks of steps up to 10.
NO
Change Transfer Belt.
→
Change Controller Board
Содержание magicolor 7450
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Страница 26: ...SERVICE MANUAL 2006 05 Ver 1 0 FIELD SERVICE Main Unit magicolor 7450 magicolor 7450 ...
Страница 43: ...2 Product specifications Field Service Ver 1 0 May 2006 6 magicolor 7450 General Blank Page ...
Страница 288: ...SERVICE MANUAL 2006 05 Ver 1 0 FIELD SERVICE Lower Feeder Unit ...
Страница 293: ...1 Product specifications Field Service Ver 1 0 May 2006 2 Lower Feeder Unit General Blank Page ...
Страница 317: ...3 Other Field Service Ver 1 0 May 2006 26 Lower Feeder Unit Maintenance Blank Page ...
Страница 321: ...5 Sensor check Field Service Ver 1 0 May 2006 30 Lower Feeder Unit Adjustment Setting Blank Page ...
Страница 328: ...SERVICE MANUAL 2006 05 Ver 1 0 FIELD SERVICE Duplex Option ...
Страница 331: ...Duplex Option General Maintenance Adjustment Setting Troubleshooting Field Service Ver 1 0 May 2006 ii Blank Page ...
Страница 333: ...1 Product specifications Field Service Ver 1 0 May 2006 2 Duplex Option General Blank Page ...
Страница 345: ...6 Jam Display Field Service Ver 1 0 May 2006 14 Duplex Option Troubleshooting Blank Page ...