Table 1-86 Black Prints - Xerox DOCUPRINT N4525 Service Quick Reference Manual

RAP 1-62
Black Prints
Fig 1-17 Black Prints
.

Table 1-86 Black Prints

Step Actions and Questions
CONTROLLER OR HOST SOFTWARE
1
ISOLATION
1. Generate a Grid Test Print.
Is the test print image normal?
LASER PRINT (EP) CARTRIDGE
2
REPLACEMENT
Install a new Laser Print (EP) Cartridge.
Is there a normal image on the paper?
3 IMAGE DEVELOPMENT INSPECTION
1. Remove the Rear Cover (RRP 1-5).
2. Generate a Grid Test Print and switch OFF printer
power halfway through the print cycle.
3. Open the Left Upper Cover.
4. Open the Drum Shutter.
5. Hand rotate (counter clockwise) the Drum Drive Motor
flywheel to advance the Drum far enough so you can
see the developed image area on the Drum before it
reached Transfer.
Is the image on the drum completely
developed; with sharp, black, easily read areas
and clear, white areas?
PROBLEM
The entire image area is black. There is no image visible on
the page.
THE PRINTER DISPLAYS NO ERROR CODE.
S4525-08
Volume 1 / Print Engine - Troubleshooting
Yes No
Replace the Go to step 2
System
Controller
Board (RRP
1-73) or
reload the
host software
Problem Go to step 3
solved
Replace the Go to step 4
Bias Transfer
Roller
Assembly
1-117