Epson Aculaser C9200N - Abcde; Low Image Density (Decrease of ID); Monocolor

EPSON AcuLaser C9200N Revision D
Troubleshooting Image quality problem 141
Confidential
<MONOCOLOR>
LOW IMAGE DENSITY (DECREASE OF ID)
A. Typical Faulty Images
B. Troubleshooting Procedure
Step Section Check Item Result Action
1 Photoconductor
Unit
Dirty on the outside. YES Clean.
2 PH Unit The surface of the PH
Window is dirty.
YES Clean with cleaning jig.
3 TCR Sensor
window
The color TCR Sensor
window on the LED Assy is
dirty.
YES Clean.
4 Transfer Belt
Unit
Transfer Belt makes positive
contact with plates on rails.
NO Check and correct contacts.
5 Cam gear operates properly NO Change Transfer Belt Unit.
(p.162)
6 Hopper Unit Connectors are loose. YES Reconnect.
7 Gear is cracked. YES Change gear.
8 Replenish
Toner
Execute the "Toner Admix" in
the Maintenance Menu to
charge toner.
NO Go to next step.
9 Adjust Density Change the setting value for
"Max Density" in the Printer
Adjust Menu.
NO Go to next step.
ABCDE
ABCDE
ABCDE
ABCDE
ABCDE
4036fs4036c0
10 The problem has been
eliminated through the checks
of steps up to 9.
NO Change Photoconductor Unit.
→ Change Controller Board.
(p.198)
→ Change PH Unit. (p.175)
→ Change High Voltage Unit
(Image Transfer,
Neutralizing). (p.230)
Step Section Check Item Result Action