4-Color; Void Areas, White Spots - Epson AcuLaser C9200N Service Manual

EPSON AcuLaser C9200N
<4-COLOR>

VOID AREAS, WHITE SPOTS

A. Typical Faulty Images
Void area
4036fs4050c0
B. Troubleshooting Procedure
Step Section Check Item
1 Image Check There are void areas at the front
side or high density section.
2 There are void areas in the
trailing edge.
3 Transfer Belt Fingerprints, oil, or other
Unit foreign matter is evident on
the Transfer Belt.
4 Transfer Belt is dirty or
scratched.
5 2nd Transfer 2nd Transfer Roller is dirty or
Roller scratched.
6 Charge Neutralizing Cloth is
not separated and ground
terminal is connected
properly.
7 Paper path There is foreign matter on
paper path.
8 Pre-Image Transfer Guide
Plate is damaged or dirty.
Troubleshooting
White spots
4036fs4051c0
Result Action
YES p.149
YES Change the setting value of "TR
XXX" in the Printer Adjust
Menu.
YES Clean with specified solvent
(Refer to Chapter 6 "
MAINTENANCE (p. 331)")
YES Clean dirty belt with a soft
cloth. Change Transfer Belt
Unit that has damages.
YES Change 2md Transfer Roller.
(p.169)
NO Correct or change.
Remove foreign matter.
Clean or change.
Image quality problem
Step Section Check Item
9 The problem has been
eliminated through the checks
of steps up to 8.
Revision D
Result Action
NO Change Transfer Belt Unit.
(p.162)
152
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