Incorrect Color Image Registration - Epson AcuLaser C9200N Service Manual

EPSON AcuLaser C9200N
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INCORRECT COLOR IMAGE REGISTRATION

A. Typical Faulty Images
B. Troubleshooting Procedure
Step Section
1 Machine Vibration is given to the
condition machine after main power
switch has been turned ON.
2 Transfer Belt Fingerprints, oil, or other
foreign matter is evident on
the Image Transfer Belt.
3 Transfer Belt is dirty or
scratched.
4 Drive coupling to the machine
is dirty.
5 Photoconductor The surface of the PC Drum is
Unit scratched.
6 2nd Transfer 2nd Transfer Roller is
Roller installed properly.
7 2nd Transfer Roller is dirty or
scratched.
8 The problem has been
eliminated through the check
of steps up to 9.
Troubleshooting
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AA AA AA
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Check Item Result
YES Turn off the Main Power
Switch and turn it on again
more than 10 seconds after.
YES Clean with specified solvent.
(Refer to Chapter 6
MAINTENANCE (p.
YES Clean dirty belt with a soft
cloth. Change Transfer Belt
Unit that has damages.
YES Clean.
YES Change Photoconductor Unit.
(p.162)
NO Reinstall.
YES Change 2nd Transfer Roller.
(p.169)
NO Change Transfer Belt Unit.
(p.162)
→
Change Controller Board.
(p.198)
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Action
"
331)")
Image quality problem
Revision D
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