EPSON AcuLaser C1100 Revision B
TROUBLESHOOTING Printing Quality-related Trouble 255
FIP-P9 Toner Smudges
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
Toner smudges appear randomly over the
entire surface of the paper.
ESS and possible parts that caused the error
ROS ASSY
Photoconductor Unit
HOUSING ASSY-GUIDE AD
2ND BTR ASSY
PWBA MCU
LV/HVPS
FUSER ASSY
PWBA ESS
500 FEEDER ASSY OPTION
Step Check Yes No
1
Check of Rollers on the paper feed path
Are Rollers on the paper feed path normal
without any dirt, damage or wear?
Go to Step [2]. After cleaning
and replacing
the relevant
Rollers, go to
step [2].
2
Connection check of ROS ASSY connector
Is the connector firmly connected to ROS
ASSY?
Go to Step [3]. Connect the
connector.
3
Check 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 [4].
4
Check of 2ND BTR ASSY
Remove 2ND BTR ASSY. (p.348)
Is 2ND BTR ASSY normal without any dirt,
damage or wear?
Go to Step [5]. Replace 2ND
BTR ASSY.
(p.348)
5
Check 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 [6].
6
Check after replacement of PWBA MCU
Replace PWBA MCU. (p.404)
Make a test print of the problem image.
Is the image printed normally?
End of
procedure
Go to Step [7].
7
Check 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
Go to Step [8].
8
Check of Heat Roll and Pressure Roll
Allow FUSER ASSY to cool down
before performing work.
Remove FUSER ASSY. (p.388)
Turn the Gear by hand, and inspect Heat Roll
and Pressure Roll.
Are Heat Roll and Pressure Roll scratched or
dirty and damaged?
Replace FUSER
ASSY. (p.388)
Replace “ESS
and possible
parts that caused
the error”.
Step Check Yes No
W A R N IN G
