EPSON AcuLaser C9200N Revision D
Troubleshooting      Image quality problem 153
Confidential
<4-COLOR> 
COLORED SPOTS
A. Typical Faulty Images
B. Troubleshooting Procedure
<4-COLOR> 
POOR FUSING PERFORMANCE, OFFSET
A. Typical Faulty Images
B. Troubleshooting Procedure
Step Section Check Item Result Action
1 Photoconductor 
Unit
The surface of the PC Drum is 
scratched.
YES Change Photoconductor Unit. 
(p.162)
2 Transfer Belt 
Unit
Fingerprints, oil, or other 
foreign matter is evident on 
the Transfer Belt.
YES Clean with specified solvent.  
(Refer to Chapter 6 " 
MAINTENANCE (p. 331)")
3 Transfer Belt is dirty or 
scratched.
YES Clean dirty belt with a soft 
cloth. Change Transfer Belt 
Unit that has damages.
4 2nd Transfer 
Roller
2nd Transfer Roller is dirty or 
scratched.
YES Change 2nd Transfer Roller. 
(p.169)
5 Paper path There is foreign matter on 
paper path.
YES Remove foreign matter.
6 Fusing Unit Fusing Belt is dirty or 
scratched.
YES Change Fusing Unit. (p.162)
7 The problem has been 
eliminated through the checks 
of steps up to 6.
NO Change Transfer Belt Unit. 
(p.162)
Step Section Check Item Result Action
1 Paper Paper type does not match. YES Change the setting.
2 The problem has been 
eliminated through the check 
of step up to 1.
NO Change Fusing Unit. (p.162)