Epson EPL-N1600 Service Manual page 84

EPSON EPL-N1600
3.3 BLACK PRINT
Problem
The entire page is black.
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 Contact RTN
• PWBA Hotaru
• C258MAIN Board
Step Action and Question
1 Print test image.
Is the test print image normal?
2 C258MAIN BOARD
Replace the C258MAIN with a known
good one.
Does the problem still persist?
3 Install a new Imaging Cartridge and
print test image.
Is the print image normal?
4 HPS OUTPUT VOLTAGES CR AND
DB TO BCR AND MAGNET ROLL
1. Reform the plate contacts CR, DB
and RTN so they make better
contacts with the Bias Charge Roll,
Magnet Roll, Drum and with the
terminals on the HPS.
2. Print test image.
Is the density of print image normal?
Chapter 3 Troubleshooting
Yes No
Go to Step 2. Go to Step 3.
Go to Step 4. Problem
solved.
Problem solved. Go to Step 4.
Problem solved. Replace the
HPS.
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