Epson EPL-N3000 - White or Light Bands (Perpendicular to Paper Transport)

EPSON EPL-N3000/AcuLaser M4000N Revision C
Troubleshooting Picture Image Trouble 149
Confidential
3.5.6 White or Light Bands (perpendicular to paper
transport)
 Description of the problem:
There are light or completely white bands in
the printed image. These bands are running
perpendicular to the paper-feed direction over
a wide area.
 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)
• FUSER ASSY (p.253)
•Heat Roll
• Pressure Roll
• MAIN MOTOR (p.279)
• GEAR ASSY HOUSING (p.281)
• CLUTCH ASSY PH, CLUTCH REGI (p.219)
• 550 FEEDER ASSY (p.224)
Step Action and Question Yes No
1
Paper condition
1. Set new dry recommended paper.
2. Print the image in question again.
♦Does the problem still occur?
Go to Step 2
Problem
solved
2
Imaging Cartridge
1. Install a new Imaging Cartridge.
♦Have the light or white bands perpendicular to the
paper-feed direction disappeared?
Problem
solved
Go to Step 3
3
BTR ASSY
1. Remove the BTR ASSY. (p.254)
2. Check the BTR Assy for dirt or wear.
♦Is the BTR free from dirt and damage and wear?
Go to Step 4
Replace the
BTR ASSY
4
ROS ASSY
♦Is the connector of the ROS ASSY connected
completely?
Go to Step 5
Reconnect the
connector.
5
Image developing process
1. Execute test printing, and turn off the power to the
printer during printing.
2. Remove the Imaging Cartridge carefully, and
inspect the toner image formed on the drum located
just before the transfer portion (BTR).
♦ Is the image on the drum such that it has been
completely formed, the region is clear and black, and
can be easily read? And have the light or white bands
perpendicular to the paper-feed direction disappeared?
Go to Step 6
Go to 3.4.16
HVPS/MCU
(p.126)
6
Image transfer process
1. Inspect the toner image formed on the drum located
just after the transfer portion (the BTR).
♦Is the toner image on the drum copied onto the
paper completely?
Go to Step 7
Go to 3.4.16
HVPS/MCU
(p.126)
7
MAIN MOTOR, GEAR ASSY HOUSING
1. Replace the DRIVE ASSY OPT FDR. (p.307) and
GEAR ASSY HOUSING.
2. Print the image in question again.
♦Does the problem still occur?
Go to Step 8
Problem
solved
8
Heat Roll and Pressure Roll
1. Remove the FUSER ASSY. (p.253)
WARNING!: Wait until the Fuser cools, and
then start work.
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?
See “Parts
below can be
the source of
this error”
Replace the
FUSER ASSY
Step Action and Question Yes No