Blank Print (No Image) - Epson EPL-N2050 Service Manual

EPSON EPL-N2050

3.4.2 Blank Print (No Image)

Problem
The entire page is blank.
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
• P/H Assy
• PWBA HVPS
• ROS Assy
• PWBA HKB MCU
• Harness Assy Conn (J23-J231)
• PWBA LVPS
• Fuser Assy
• Harness Assy Fuser (J271, J11, J27, J262)
• Cover Assy Front
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 3-11. Blank Print
Step Action and Question
DRUM GROUND
Check the Drum Ground Path:
1 Drum>Drum Shaft Pin>Spring
Clip>Frame
Is the Drum Ground Path complete?
LASER BEAM PATH
Inspect the laser beam path between
the ROS Assy and the Drum for
2
contamination or obstructions.
Is the laser beam path free of
obstacles?
BTR ASSY
Inspect the BTR Assy for
3
contamination.
Is the BTR free of contamination?
IMAGE TRANSFER PROCESS FAILURE
Generate a test print and switch OFF
printer power halfway through the
print cycle.
4
Remove the CRU and inspect the
image on the drum.
Was the image on the drum
transferred to the paper?
CRU FAILURE
5 Install a new CRU.
Is the problem solved?
Revision B
Yes No
Re-establish
Go to Step 2. the Drum
Ground Path
Remove
Go to Step 3. obstructions or
contamination.
Replace the
Go to Step 4.
BTR Assy.
Go to
Table 3-44,
Go to Step 5. "PWBA HVPS
Failure," on
page 100.
Problem Return to
solved. Initial Analysis.
74