Unfused Image - Epson EPL-N2050 Service Manual

EPSON EPL-N2050

3.4.15 Unfused Image

Problem
The printed image is not fully
fused to the paper. The image
rubs off easily.
Troubleshooting
Initial Analysis
1. Inspect the following components. Are they
compatible with your printer version,
correctly installed, not damaged, deformed,
or contaminated?
• PWBA HKB MCU
• Heat Roll
• PWBA LVPS
• Fuser Assy
• Pressure Roll 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 3-24. Unfused Image
Step Action and Question
PAPER CONDITIONS
1 Is there moisture in the paper?
Is the paper wrinkled?
CAP ENVELOP
Open the Cover Rear.
2
Inspect the Cap Envelop
Is the Cap Envelop set properly?
NVRAM DATA
Enter Configuration Mode.
3
Is the Config Code 09 parameter
correct?
HEAT ROLL
Inspect the Heat Roll for scratches,
4 objects, or contamination.
Is the Heat Roll free of scratches
and contamination?
PRESSURE ROLL
Inspect the Pressure Roll for
scratches, objects, or
5
contamination.
Is the Pressure Roll free of
scratches and contamination?
FUSER Assy
Inspect the contact between the
6 Heat and Pressure Rolls.
Are the Heat and Pressure Rolls
contacting correctly?
Revision B
Yes No
Replace with
fresh and dry Go to Step 2.
paper.
Recover the
Go to Step 3. NIP of the
Fuser Assy.
Correct the
Go to Step 4.
parameter.
Replace the
Go to Step 5.
Heat Roll.
Replace the
Go to Step 6. Pressure Roll
Assy.
Return to Initial Replace the
Analysis. Fuser Assy.
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