Xerox Phaser 6121MFP Service Manual page 239

Phaser 6121MFP Service Manual
Troubleshooting Procedure Table (continued)
Step Actions and Questions
3 Reseat all connectors and
cables between the
Scanner Unit and the
Image Processor Board,
and then make another
copy.
Does the defect still
occur?
4 Remove the Imaging
Unit.
Wipe the transfer belt
with a clean white cloth.
Is toner evident on the
cloth?
5 Replace the Imaging
Unit.
Does the problem persist?
6 Check the Cleaning Blade
Solenoid connector CN6,
and Engine Control Board
connector P/J5.
Are the connectors seated
properly?
7
Replace the Cleaning
Blade Solenoid
(page 8-104).
Does the problem persist?
8 Replace the Engine
Control Board
(page 8-59).
9
Are the developing bias
contact terminals of both
the Toner Cartridge and
the Imaging Unit in good
contact?
10 Check the connectors and
terminal contacts of the
Laser Unit.
Are the connectors,
window surface, and
contact terminals
connected properly?
11 Has the problem been
eliminated?
Print-Quality Troubleshooting
Yes No
Replace the Scanner Complete.
Unit (page 8-31).
The cleaning blade Go to step 9.
may not be operating
correctly. Go to
step 5.
Go to step 6. Complete.
Go to step 7. Reseat the
connectors. If the
problem persists, go
to step 7.
Go to step 8. Complete.
Complete.
Go to step 10. Clean the contact
terminals. If the
problem persists, go
to step 10.
Go to step 11. Reseat the
connectors and clean
the terminal contacts.
If the problem
persists, go to step
11.
Complete. Replace the following
units until problem is
eliminated:
Laser Unit
(page 8-50),
Toner Cartridge
(page 8-20).
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