White Or Light Bands (Parallel With Paper Transport) - Epson EPL-N3000 Service Manual

EPSON EPL-N3000/AcuLaser M4000N
3.5.5 White or Light Bands (parallel with paper
transport)
Step Action and Question
Paper condition
1. Set new dry recommended paper.
1
2. Print the image in question again.
♦
Does the problem still occur?
Paper path
1. Check to see if there are dirt or obstacles in the path
2
of the paper from the paper supply opening to the
paper eject opening.
♦
Is the path of paper free from obstacles?
Path of laser beam
1. Inspect the path of laser beam from the ROS ASSY
to the Drum.
3
♦
Is the path of laser beam free from obstacles?
Check the window of the ROS ASSY to see if it is
clean.
Troubleshooting
Description of the problem:
There are light or completely white bands in
the printed image. These bands are running
parallel with paper-feed direction over a wide
area.
Parts below can be the source of this error:
• Imaging Cartridge
• BTR ASSY
(p.254)
• 150 FEEDER ASSY
(p.211)
• ROS ASSY
(p.239)
• BOARD ASSY., MAIN
(p.299)
• FUSER ASSY
(p.253)
• Heat Roll
• Pressure Roll
• 550 FEEDER ASSY
(p.224)
Yes
Problem
Go to Step 2
solved
Remove
obstacle or
Go to Step 3
dirt from the
path of paper.
Remove all
the obstacles
from the path
Go to Step 4 of laser beam
or clean the
window of the
ROS ASSY.
Picture Image Trouble
Step Action and Question
Imaging Cartridge
1. Install a new Imaging Cartridge.
4
2. Print the image in question again.
♦
Does the problem still occur?
BTR ASSY
1. Remove the BTR ASSY. (p.254)
5
2. Check the BTR Assy for dirt or wear.
♦
Is the BTR free from dirt and damage and wear?
Heat Roll and Pressure Roll
1. Remove the FUSER ASSY. (p.253)
WARNING!:
6
2. Turn the Gear HR by hand, and inspect the Heat
Roll and the Pressure Roll.
♦
Are the Heat Roll and the Pressure Roll free from
scratches, dirt and damage?
No
Go to Step 5
Go to Step 6
See 3.4.16
HVPS/MCU
Wait until the Fuser cools, and
(p.126)
then start work.
or "Parts
below can be
the source of
this error"
Revision C
Yes No
Problem
solved
Replace the
BTR ASSY
Replace the
FUSER ASSY
148
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