Epson EPL-N1600 Option, Service Manual

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EPSON EPL-N1600 Chapter 3 Troubleshooting
Rev. A 88
3.5 HORIZONTAL WHITE BANDING
Problem Suspect Components
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. 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 Yes No
1 PAPER CONDITIONS
• Is the paper damp?
• Is the paper wrinkled?
Replace with
new, dry paper. Go to Step 2.
2 IMAGING CARTRIDGE
Install a new Imaging Cartridge.
Is the print image normal?
Problem solved. Go to Step 3.
3 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?
Problem solved. Go to Step 4.
4 HPS
1. Replace the HPS.
2. Print test image.
Is the print image quality normal?
Problem solved. Go to Step 5.
5 HPS OUTPUT VOLTAGE TR TO
BTR
1. Reform the plate contact BTR so it
makes better contact with the
terminal on the HPS.
2. Print test image.
Is the print image quality normal?
Problem solved. Go to Step 6.
6 HPS
1. Replace the HPS.
2. Print test image.
Is the print image quality normal?
Problem solved. -----