Vertical Linear Deletions - Epson EPL-N2050 Service Manual

EPSON EPL-N2050

3.4.5 Vertical Linear Deletions

Problem
There are areas of the image
that are extremely light or
missing entirely. These missing
areas form narrow lines
running vertically along the
pages, in the direction of paper
travel.
Troubleshooting
Initial Analysis
1. Inspect the following components. Are they
compatible with your printer version,
correctly installed, not damaged, deformed
or contaminated?
• CRU
• BTR Assy
• Heat Roll
• Fuser Assy
• PWBA HKB MCU
• BTR Chute Assy
• Pressure Roll Assy
• ROS Assy
2. Inspect the printer paper path. Is it clear of
foreign matter such as staples, paper clips,
and paper scrap?
Troubleshooting by Print Image Quality
Table 3-14. Vertical Linear Deletions
Step Action and Question
LASER BEAM PATH
Inspect the laser beam path between
the ROS Assy and the Drum for
1
contamination or obstructions.
Is the laser beam path free of any
obstacles?
BTR ASSY
Inspect the BTR Assy for
2
contamination.
Is the BTR free of contamination?
CRU FAILURE
3 Replace the CRU with a new one.
Is the problem solved?
HEAT ROLL DAMAGE
Inspect the Heat Roll for scratches,
4 objects, or contamination.
Is the Heat Roll free of scratches and
contamination?
PAPER PATH
Inspect the paper path, between feed
and exit, for contamination or
5
obstructions.
Is the paper path free of
obstructions?
Revision B
Yes No
Remove
Go to Step 2. obstructions or
contamination.
Replace the
Go to Step 3.
BTR Assy.
Problem
Go to Step 4.
solved.
Replace the
Go to Step 5.
Heat Roll.
Remove
obstructions or
Return to initial
contamination
Analysis.
from the paper
path.
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