Epson EPL-N1600 Service Manual page 85

EPSON EPL-N1600
3.4 VERTICAL WHITE BANDING
Problem
There are areas of the image that
are extrreamly light or missig
entirely. These missing areas
form wide ands that runs vertically
along the paper feeding direction.
Rev. A
Suspect Components
The following components are assosiated with
this specific problem. One or more of these
components may have failed partially or
completely. If you can not isolate the problem
using this procedure, replace each components
listed below, one at a time, until the problem
disappears.
• Mirror Assy.
• Fuser Assy.
• Imaging Cartridge
Step Action and Question
1 PAPER CONDITIONS
Is the paper damp?
2 IMAGING CARTRIDGE
Install a new Imaging Cartridge.
Is the print image normal?
3 LASER BEAM PATH
inspect the Mirror Assy. and the laser
beam path between the ROS Assy.
and the OPC drum.
• Is a surface of the Mirror Assy.
clean?
• Is the laser beam path free of any
obstruction?
4 ROLL BTR
Inspect the Roll BTR for
contamination and wear.
Is the Roll BTR free of contamination
and wear?
5 PAPER PATH]
Inspect the paper path throughly for
any contamination and wear.
Is the paper path clean and free of
obstaruction?
6 ROLL FUSER AND ROLL PRESS
1. Remove the Fuser Assy.
2. Inspect the Roll Fuser and the Roll
Press for scratches and
contamination.
Are these Rolls free of scratches and
contamination?
Chapter 3 Troubleshooting
Yes No
Replace with dry Go to Step 2.
paper.
Problem solved. Go to Step 3.
Go to Step 4. Clean a surface
of the Mirror
Assy. or
remove any
ostructions from
laser beam
path.
Go to Step 5. Replace the
Roll Assy. BTR.
Go to Step 6. Clean or
remove any
obstruction
from the paper
path.
Go to suspect Replace the
component. Roll Fuser or
the Roll Press.
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