EPSON AcuLaser C1100 Revision B

TROUBLESHOOTING Printing Quality-related Trouble 250

FIP-P5 Horizontal White Bands or Lines

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
Horizontal (vertical to the paper feed
direction) white bands or lines appear almost
all over the printout. Some bands or lines are
extremely faint and some are completely white
(blank) missing the part of the image which
should be printed.
ESS and possible parts that caused the error
ROS ASSY
2ND BTR ASSY
Photoconductor Unit
PWBA MCU
LV/HVPS
FUSER ASSY
HOUSING ASSY-GUIDE AD
PWBA ESS
500 FEEDER ASSY OPTION
Step Check Yes No
1Check of Paper
Load new, dry recommended paper, and
execute a test print of the problem image.
Is the image printed normally?
End of
procedure Go to Step [2].
2Check of Rollers on the paper feed path
Are Rollers on the paper feed path normal
without any dirt, damage or wear?
Go to Step [4]. After cleaning
or replacing the
relevant Rollers,
go to step [3].
3Execution of a test print
Make a test print of the problem image.
Is the image printed normally?
End of
procedure Go to Step [4].
4Connection check of ROS ASSY connector
Is the connector firmly connected to ROS
ASSY?
Go to Step [5]. Connect the
connector.
5Check of 2ND BTR ASSY
Remove 2ND BTR ASSY. (p.348)
Is 2ND BTR ASSY normal without any dirt,
damage or wear?
Go to Step [6]. Replace 2ND
BTR ASSY.
(p.348)
6Check 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 [7].
7Check after replacement of ROS ASSY
Replace ROS ASSY. (p.375)
Make a test print of the problem image.
Is the image printed normally?
End of
procedure Go to Step [8].
8Check 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 [9].
9Check of image primary transfer process
Is the toner image on the drum transferred
normally to IBT BELT? Also, are there any
horizontal white bands?
Execute a test print, turn the power OFF when
you think that the primary transfer process is
in progress during printing, and check the
toner image on IBT BELT.
Go to Step [10]. Replace LV/
HVPS. (p.407)
Step Check Yes No