Image Partial Missing (White Spots) - Epson EPL-N3000 Service Manual

EPSON EPL-N3000/AcuLaser M4000N

3.5.9 Image Partial Missing (White Spots)

Step Action and Question
Paper condition
1 1. Set new dry recommended paper.
2. Print the image in question again.
♦
Does the problem still occur?
Imaging Cartridge
1. Install a new Imaging Cartridge.
2
2. Print the image in question again.
♦
Does the problem still occur?
Image developing process
1. Execute test printing, and turn off the power to the
printer during printing.
2. Remove the Imaging Cartridge carefully, and
3
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?
Troubleshooting
Description of the problem:
In the image, there is extremely light areas or
areas where image is completely missing.
These areas are found scattering in a narrow
part on the paper.
Parts below can be the source of this error:
• Imaging Cartridge
• HVPS/MCU
(p.301)
• BTR ASSY
(p.254)
• 150 FEEDER ASSY
(p.211)
• BOARD ASSY., MAIN
(p.299)
• 550 FEEDER ASSY
(p.224)
Yes
Problem
Go to Step 2
solved
Problem
Go to Step 3
solved
Go to
Go to Step 4 HVPS/MCU
(p.126)
Picture Image Trouble
Step Action and Question
Image transfer process
1. Inspect the toner image formed on the drum located
4
just after the transfer portion (the BTR).
♦
Is the toner image on the drum completely copied
onto the paper?.
Heat Roll and Pressure Roll
1. Remove the FUSER ASSY. (p.253)
WARNING!:
5
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
3.4.16
Go to Step 5
Wait until the Fuser cools, and
See "Parts
then start work.
below can be
the source of
this error"
Revision C
Yes No
Replace the
BTR ASSY
Replace the
FUSER ASSY
153
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