Xerox Phaser 4500, Service Manual

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5-28 Phaser 4500 Service Manual
Horizontal Streaks
There are black lines running horizontally across the page in the scan direction (at a
right angle to the direction of paper travel).
Initial Actions
■
Check that the paper supply is dry and fresh.
■
Inspect the printer paper path for items, such as
staples, paper clips, and paper scraps.
■
Check installation of the Print Cartridge.
■
Check that the Print Cartridge contacts (on the
right side of the Print Cartridge and in the Print
Cartridge Right Side Guide in the printer) are
clean.
Horizontal Streaks Troubleshooting Procedure
Step Actions and Questions Yes No
1 1. Enter Service Diagnostics and
select Engine Test Print .
2. Scroll to Print Quantity , then
press the OK button.
3. Press the OK button to move the
cursor over the last digit, then
press the Up Arrow key until the
last digit is “5”. Press the Back
button to return to the Engine Test
Print menu.
4. Scroll to the Print Test Pattern
and press the OK button.
Go to step 3. Go to step 2.
2 1. Exit Service Diagnostics.
2. When the printer is Ready, scroll
to Information , then press the OK
button.
3. Scroll to Information Pages , then
press the OK button.
4. Scroll to Configuration Page ,
then press the OK button.
Do the prints have horizontal
streaks?
Verify Harness
Connectors on I/P
PWABA. If the
problems persist,
replace the Image
Processor Board
(page 8-91). The problem appears
to be with the host
computer or the
cables. If the problems
persist, replace the
Image Processor
Board (page 8-91).
s4500-043