EPSON AcuLaser C1100 Revision B

TROUBLESHOOTING Printing Quality-related Trouble 257

FIP-P11 Dark or Dirty Background

Before starting troubleshooting, inspect the feed path of the printer paper. Check the
paper feed path for metal staples, paper clips, paper scraps, and other foreign matter.
Problems
The entire page or part of the page is dirtied
with toner. It appears as extremely light gray
dirt.
ESS and possible parts that caused the error
ROS ASSY
Photoconductor Unit
SENSOR ASSY ADC
LV/HVPS
HOUSING ASSY-GUIDE AD
2ND BTR ASSY
PWBA MCU
FUSER ASSY
PWBA ESS
500 FEEDER ASSY OPTION
Step Check Yes No
1Connection check of ROS ASSY connector
Is the connector firmly connected to ROS
ASSY?
Go to Step [2]. Connect the
connector.
2Check of contact between Photoconductor
Unit and frame
Are the contacts of Photoconductor Unit and
HOUSING ASSY-GUIDE AD dirty or
deformed?
Clean or replace
relevant parts. Go to Step [3].
3Check after replacement of
Photoconductor Unit
Replace Photoconductor Unit.
Make a test print of the problem image.
Is the image printed normally?
End of
procedure Go to Step [4].
4Check of dirt and foreign bodies on surface
of SENSOR ASSY ADC
Are there any dirt or foreign bodies on the
SENSOR ASSY ADC surface?
Clean to remove
any dirt or
foreign bodies,
and go to step
[5].
Go to Step [6].
5Execution of a test print
Make a test print of the problem image.
Is the image printed normally?
End of
procedure Go to Step [6].
6Check after replacement of SENSOR ASSY
ADC
Replace SENSOR ASSY ADC. (p.353)
Make a test print of the problem image.
Is the image printed normally?
End of
procedure Go to Step [7].
7Check after replacement of LV/HVPS
Replace LV/HVPS. (p.407)
Make a test print of the problem image.
Is the image printed normally?
End of
procedure
Replace “ESS
and possible
parts that caused
the error”.
Step Check Yes No