Xerox Phaser 6121MFP Service Manual page 237

Phaser 6121MFP Service Manual
Troubleshooting Procedure Table (continued)
Step Actions and Questions
4 Inspect the Imaging Unit.
Is the outside of the unit
or the contact dirty?
5 Inspect the laser window.
Is the window dirty?
6 Is the 2nd Transfer Roller
contact dirty?
7 Has the problem been
eliminated?
Print-Quality Troubleshooting
Yes No
Clean the unit. If the Go to step 5.
problem persists, go
to step 5.
Carefully clean the Go to step 6.
surfaces. If the
problem persists, go
to step 6.
Clean the contact. If Go to step 7.
the problem persists,
go to step 7.
Complete. Replace the following
units, listed in order,
until the problem is
eliminated:
Toner Cartridge
(page 8-20)
Imaging Unit
(page 8-6),
Transfer Roller
(page 8-56),
Laser Unit
(page 8-50),
Engine Control Board
(page 8-59), and
High Voltage Board
(page 8-57).
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