Black Stripes (Parallel With Paper Transport) - Epson EPL-N3000 Service Manual

EPSON EPL-N3000/AcuLaser M4000N

3.5.7 Black Stripes (parallel with paper transport)

Step Action and Question
Paper path
1. Check to see if there are dirt or obstacles in the path
1
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.
2
♦
Is the path of laser beam free from obstacles?
Check the window of the ROS ASSY to see if it is
clean.
Imaging Cartridge
1. Install a new Imaging Cartridge.
3
2. Execute test printing.
♦
Have the black stripes running parallel with the
paper-feed direction disappeared?
Troubleshooting
Description of the problem:
Black stripes are running parallel with the
paper-feed direction.
Parts below can be the source of this error:
• Imaging Cartridge
• HVPS/MCU
(p.301)
• GUIDE ASSY CRU R
(p.257)
• BTR ASSY
(p.254)
• 150 FEEDER ASSY
(p.211)
• ROS ASSY
(p.239)
• BOARD ASSY., MAIN
(p.299)
• 550 FEEDER ASSY
(p.224)
Yes
Remove
obstacle or
Go to Step 2
dirt from the
path of paper.
Remove all
the obstacles
from the path
Go to Step 3 of laser beam
or clean the
window of the
ROS ASSY.
Problem
Go to Step 4
solved
Picture Image Trouble
Step Action and Question
BTR ASSY
1. Remove the BTR ASSY. (p.254)
4
2. Check the BTR Assy for dirt or wear.
♦
Is the BTR free from dirt and damage and wear?
ROS ASSY
5
♦
Is the connector of the ROS ASSY connected
completely?
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.
No
♦
Are the Heat Roll and the Pressure Roll free from
scratches, dirt and damage?
Go to Step 5
Go to Step 6
Wait until the Fuser cools, and
Go to
then start work.
Electrical
Noise (p.127)
Revision C
Yes No
Replace the
BTR ASSY
Reconnect the
connector.
3.4.17
Replace the
FUSER ASSY
150
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