Back Marking - Xerox Phaser 6121MFP Service Manual

Print-Quality Troubleshooting

Back Marking

Initial Actions
5-28
The copy includes markings on the backside of the image.
Perform the initial actions listed on page 5-5.
Troubleshooting Reference Table
Applicable Parts
Imaging Unit, PL4.013
Transfer Roller, PL7.1.10
Fuser, PL11.0.18
High Voltage Board, PL13.0.6
Troubleshooting Procedure Table
Step Actions and Questions
1 Check the paper path.
Is there a foreign object in
the paper path?
2 Inspect the Fuser.
Is the fusing entrance
guide plate dirty, or is the
Fuser Roller dirty or
scratched?
3 Check the Transfer Roller.
Is the roller dirty or
damaged?
4 Has the problem been
eliminated?
Example Print
Yes No
Remove the Go to step 2.
obstruction. If the
problem persists, go
to step 2.
Clean or replace the Go to step 3.
Fuser (page 8-9). If
the problem persists,
then go to step 3.
Replace the Transfer Go to step 4.
Roller (page 8-9). If
the problem persists,
go to step 4.
Complete. Replace the following
units, listed in order,
until the problem is
eliminated:
Imaging Unit
(page 8-6),
Fuser (page 8-9),
High Voltage Board
(page 8-57).
Phaser 6121MFP Service Manual
Toner on Back of Print