2-26 Service Manual
4022-XXX
Horizontal Streaks Service Check
There are black lines running horizontally across the paper.
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.
• Refer to the wiring diagrams and check for a broken wire or
loose connection between FRUs in the Xerographic sections of
the printer.
Step Actions and Questions Yes No
1 TONER CARTRIDGE REPLACEMENT
Install a new Toner Cartridge.
Are the horizontal streaks gone?
Problem
solved
Go to step 2
2 IMAGE DEVELOPMENT INSPECTION
Generate a Test Print and switch off printer power halfway
through the print cycle.
Open the Top Cover.
Open the Drum Shutter.
Hand rotate (counterclockwise) the Drum 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 complete without any visible
problems?
Go to step 3 Replace the
Printhead
Assembly. Go
to “Printhead
Assembly
Removal” on
page 4-32.
3 IMAGE TRANSFER INSPECTION
Inspect the Test Print you generated in step 2.
Are horizontal streaks visible on the paper after Transfer?
Replace the
Transfer
Roller. Go to
“Transfer
Roller
Removal” on
page 4-38.
Go to step 4
Step Actions and Questions Yes No
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