Diagnostic Information 2-69
4025-XXX
Spot Deletions
There are areas of the image that are extremely light or are missing entirely. These
missing areas form non-uniform spots that are localized to small areas of the page.
THE PRINTER DISPLAYS NO ERROR CODE.
7 The following printer FRUs and areas are associated with this
specific problem. One or more of these FRUs or areas may
have failed partially or completely. If you cannot isolate this
problem using the steps in this Service Check, replace each
FRU or troubleshoot each area listed below, one at a time, until
you isolate and solve the problem.
• MCU PWB - Go to “Engine Board (MCU PWB)” on
page 4-92.
• I/O PWB - Go to “I/O PWB” on page 4-89.
• CRU Connector and Contact Springs
Step Actions and Questions Yes No
1 PAPER INSPECTION
Inspect the paper loaded in the paper trays.
Is the paper wrinkled, dimpled, or show any sign of having
a high moisture content?
Replace with
dry, newly
opened paper
Go to step 2
2 EP CARTRIDGE REPLACEMENT
Install a new EP Cartridge.
Are the spot deletions gone?
Problem
solved
Go to step 3
3 IMAGE TRANSFER INSPECTION
Remove the Rear Cover.
Generate a Black Test Print and switch OFF printer power
halfway through the print cycle.
Open the Left Upper Cover.
Open the Drum Shutter.
Hand rotate (counterclockwise) the Main Drive Motor 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 spot deletions, but there are spot deletions on
the paper after Transfer?
Replace the
“BTR
Assembly”
on page 4-61
Go to step 4
Step Actions and Questions Yes No
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