Epson AcuLaser C1100 Service Manual page 250

EPSON AcuLaser C1100
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.
Step Check
Check of Paper
1
Load new, dry recommended paper, and
execute a test print of the problem image.
Is the image printed normally?
Check of Rollers on the paper feed path
2
Are Rollers on the paper feed path normal
without any dirt, damage or wear?
Execution of a test print
3
Make a test print of the problem image.
Is the image printed normally?
TROUBLESHOOTING
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
Yes No
End of Go to Step [2].
procedure
Go to Step [4]. After cleaning
or replacing the
relevant Rollers,
go to step [3].
End of Go to Step [4].
procedure
Printing Quality-related Trouble
Step Check
Connection check of ROS ASSY connector
4
Is the connector firmly connected to ROS
ASSY?
Check of 2ND BTR ASSY
5
Remove 2ND BTR ASSY. (p.348)
Is 2ND BTR ASSY normal without any dirt,
damage or wear?
Check after replacement of
6
Photoconductor Unit
Replace Photoconductor Unit.
Make a test print of the problem image.
Is the image printed normally?
Check after replacement of ROS ASSY
7
Replace ROS ASSY. (p.375)
Make a test print of the problem image.
Is the image printed normally?
Check after replacement of PWBA MCU
8
Replace PWBA MCU. (p.404)
Make a test print of the problem image.
Is the image printed normally?
Check of image primary transfer process
9
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.
Revision B
Yes No
Go to Step [5]. Connect the
connector.
Go to Step [6]. Replace 2ND
BTR ASSY.
(p.348)
End of Go to Step [7].
procedure
End of Go to Step [8].
procedure
End of Go to Step [9].
procedure
Go to Step [10]. Replace LV/
HVPS. (p.407)
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