Table 1-88 Horizontal Band Deletions - Xerox DOCUPRINT N4525 Service Quick Reference Manual

RAP 1-64
Horizontal Band Deletions
Fig 1-19 Horizontal Band Deletions
.

Table 1-88 Horizontal Band Deletions

Step Actions and Questions
1 PAPER INSPECTION
Inspect the paper that is loaded in the paper Bins.
Is the paper wrinkled, dimpled, or show any
sign of having a high moisture content?
LASER PRINT (EP) CARTRIDGE
2
REPLACEMENT
Install a new Laser Print (EP) Cartridge .
Are the horizontal band deletions gone?
3 IMAGE TRANSFER INSPECTION
1. Remove the Rear Cover (RRP 1-5).
2. Generate a Solid Black 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.
Before Transfer was the toner image on the
drum normal and without horizontal band
deletions, but there are deletions on the paper
after Transfer?
BIAS TRANSFER ROLLER REPLACEMENT
4
1. Replace the Bias Transfer Roller Assembly.
2. Generate a Solid Black Test Print.
Is the Test Print normal, with no horizontal
band deletions?
PROBLEM
There are areas of the image that are extremely light or are
missing entirely. These missing areas form lines or bands
that run horizontally across the page perpendicular to the
direction of paper travel.
THE PRINTER DISPLAYS NO ERROR CODE.
S4525-10
Volume 1 / Print Engine - Troubleshooting
Yes No
Replace with Go to step 2
dry, newly
opened paper
Problem Go to step 3
solved
Go to step 4 Go to step 5
Problem Go to step 5
solved
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