Xerox Phaser 6121MFP Service Manual page 241

Phaser 6121MFP Service Manual
Troubleshooting Procedure Table (continued)
Step Actions and Questions
3 Reseat all connectors and
cables between the
Scanner and the Image
Processor Board, and the
Engine Control Board, and
then make another copy.
Does the defect still
occur?
4 Does the defect occur in
only one color on the test
print?
5 Inspect the Imaging Unit:
Are there scratches or
lines evident on the photo
conductor surface?
Is the connector or
contact terminal of the
Imaging Unit dirty?
Does the problem persist? Go to step 6.
6 Check the Laser Unit:
Are the connectors and
terminal contacts of the
Laser Unit connected
properly?
Is the laser window
surface clean?
7 Is the Transfer Roller dirty
or damaged?
8 Check the paper path.
Is there a foreign object
or obstruction in the
path?
9 Inspect the Fuser.
Is the fusing entrance
guide plate or the
separation claw dirty or
scratched?
Print-Quality Troubleshooting
Yes No
Replace the Scanner Complete.
Unit (page 8-31).
Replace the toner Go to step 5.
cartridge associated
with the defect. If the
defect persists, go to
step 5.
Replace the Imaging
Unit (page 8-6).
Clean the contact
terminal.
Complete.
Reseat the
connectors and clean
the terminal contacts.
Go to step 7. Clean the laser
window.
If the problem
persists, go to step 7.
Replace the roller Go to step 8.
(page 8-56). If the
problem persists, go
to step 8.
Remove the object Go to step 9.
and reprint the test
page. If the problem
persists, go to step 9.
Clean the guide plate Go to step 10.
and reprint the test
sheet. If the problem
persists go to step 10.
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