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EPSON AcuLaser C1100 Revision B
TROUBLESHOOTING Printing Quality-related Trouble 253
FIP-P7 Horizontal Black 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) black lines appear on printout.
ESS and possible parts that caused the error
ROS ASSY
2ND BTR ASSY
Photoconductor Unit
LV/HVPS
FUSER ASSY
HOUSING ASSY-GUIDE AD
PWBA MCU
PWBA ESS
500 FEEDER ASSY OPTION
Step Check Yes No
1
Connection check of ROS ASSY connector
Is the connector firmly connected to ROS
ASSY?
Go to Step [2]. Connect the
connector.
2
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 [3]
3
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 [4]. Replace 2ND
BTR ASSY
(p.348)
4
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 [5].
5
Check 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 [6].
6
Check of image primary transfer process
Is the toner image on the drum transferred
normally to IBT BELT?
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 [7]. Replace LV/
HVPS. (p.407)
7
Check of image secondary transfer process
Is the toner image on IBT BELT transferred
normally to the paper?
Execute a test print, turn the power OFF when
you think that the image transfer process is in
progress during printing, and check the paper.
Go to Step [8]. Replace LV/
HVPS. (p.407)
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