EPSON AcuLaser C1100 Revision B

TROUBLESHOOTING Printing Quality-related Trouble 249

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.
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
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 the paper feed path
Are there any dirt or obstacles on the paper
feed path from feeding section to the ejecting
section?
Remove
obstacles. Go to Step [3].
3Check of laser beam path
Are there any obstructions between ROS
ASSY and Photoconductor Unit?
Remove
obstacles. Go to Step [4].
4Check of ROS window
Is ROS window dirty?
Clean the ROS
window with
CLEANER
ASSY.
Go to Step [5].
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 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
WARNING