Epson EPL-N1600 Service Manual page 88

EPSON EPL-N1600
3.7 HORIZONTAL BLACK STREAKS
Problem
There are areas of the image that
are extrreamly light or missig
entirely. These missing areas
form wide ands that runs
horizontally across the paper.
Rev. A
Suspect Components
The following components are assosiated with
this specific problem. One or more of these
components may have failed partially or
completely. If you can not isolate the problem
using this procedure, replace each components
listed below, one at a time, until the problem
disappears.
• Plate Contact CR
• Plate Contact DB
• Plate Contact BTR
• Plate Contact DTS
• Plate Contatct RTN
• Imaging Cartridge
• PWBA Hotaru
• C258MAIN Board
Step Action and Question
1 IMAGING CARTRIDGE
Install a new Imaging Cartridge.
Is the print image normal?
2 HPS OUTPUT VOLTAGES CR AND
DB TO BCR AND MAGNET ROLL
1. Reform the plate contacts CR, DB
and RTN so they make better BCR,
Magnet Roll, OPC Drum and the
terminals on the HPS.
2. Print test image.
Is the print image quality normal?
3 HPS
1. Replace the HPS.
2. Print test image.
Is the print image quality normal?
4 ROLL FUSER AND ROLL PRESS
1. Remove Fuser Assy.
2. Inspect the Roll Fuser and the Roll
Press for scratches and
contamination.
Are these rolls free of scratches and
contamination?
Chapter 3 Troubleshooting
Yes No
Problem solved. Go to Step 2.
Problem solved. Go to Step 3.
Problem solved. Go to Step 4.
Go to "Electrical Replace the
Noise". Roll Fuser or
the Roll Press.
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