Gradation Reproduction Failure; Monocolor> Foggy Background - Epson AcuLaser C9200N Service Manual

EPSON AcuLaser C9200N
<MONOCOLOR>

GRADATION REPRODUCTION FAILURE

A. Typical Faulty Images
B. Troubleshooting Procedure
Step Section
1 Photoconductor Dirty on the outside.
Unit
2 PH Unit The surface of the PH
Window is dirty.
3 TCR Sensor TCR Sensor window is dirty.
window
4 Adjust Density Change the setting value for
"Max Density" in the Printer
Adjust Menu.
5 The problem has been
eliminated through the checks
of steps up to 5.
Troubleshooting
Downloaded from www.Manualslib.com
4036fs4048c0 4036fs4049c0
Check Item Result
YES Clean.
YES Clean with cleaning jig.
YES Clean.
NO Go to next step.
NO Change Photoconductor Unit.
→
Change Controller Board.
(p.198)
→
Change PH Unit.
→
Change High Voltage Unit
(Image Transfer,
Neutralizing).
manuals search engine
<MONOCOLOR>
FOGGY BACKGROUND
A. Typical Faulty Images
B. Troubleshooting Procedure
Action
Step Section
1 Photoconductor
Unit
2 PH Unit
3 TCR Sensor
window
4 Adjust Density Change the setting value for
5 Blur Margin
(p.175)
6
(p.230)
Image quality problem
ABCD
ABCD
ABCD
ABCD
ABCD
4036fs4030c0
Check Item Result
Dirty on the outside. YES Clean.
The surface of the PH YES Clean with cleaning jig.
Window is dirty.
The color TCR Sensor YES Clean.
window is dirty.
NO Go to next step.
"Max Density" in the Printer
Adjust Menu.
Change the setting value for NO Go to next step.
"Blur Margin" in the Printer
Adjust Menu.
The problem has been NO Change Photoconductor Unit.
→
eliminated through the checks
of steps up to 5.
(p.198)
→
→
(Image Transfer,
Neutralizing).
Revision D
Action
Change Controller Board.
Change PH Unit. (p.175)
Change High Voltage Unit
(p.230)
142
Confidential