Epson AcuLaser C1100 Service Manual page 249

EPSON AcuLaser C1100
FIP-P4 Vertical 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 the paper feed path
2
Are there any dirt or obstacles on the paper
feed path from feeding section to the ejecting
section?
Check of laser beam path
3
Are there any obstructions between ROS
ASSY and Photoconductor Unit?
TROUBLESHOOTING
Problems
Vertical (along 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
Photoconductor Unit
2ND BTR ASSY
FUSER ASSY
PWBA ESS
PWBA MCU
LV/HVPS
500 FEEDER ASSY OPTION
Yes No
End of Go to Step [2].
procedure
Remove Go to Step [3].
obstacles.
Remove Go to Step [4].
obstacles.
Printing Quality-related Trouble
Step Check
Check of ROS window
4
Is ROS window dirty?
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 of Heat Roll and Pressure Roll
8
W A R N I N G
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?
Revision B
Yes No
Clean the ROS Go to Step [5].
window with
CLEANER
ASSY.
Go to Step [6]. Replace 2ND
BTR ASSY
(p.348)
End of Go to Step [7].
procedure
End of Go to Step [8].
procedure
Replace FUSER Replace "ESS
ASSY. (p.388) and possible
parts that caused
the error".
249