Phaser 6121MFP Service Manual 5-25
Print-Quality Troubleshooting
Incorrect Color Image Registration
The composite color image is misaligned or presents an incorrect color scheme.
Initial Actions
Calibrate the printer first (see “Calibration” on page 5-5), and then perform the
rest of the initial actions listed on page 5-5.
Troubleshooting Reference Table
Applicable Parts Example Print
■ Imaging Unit, PL4.0.13
■ Transfer Roller, PL7.1.10
■ Laser Unit, PL4.0.2
■ Engine Control Board, PL13.0.20
Troubleshooting Procedure Table
Step Actions and Questions Yes No
1 Inspect the Imaging Unit:
Is the drive coupling to
the machine dirty?
Clean.
Is the unit installed in the
proper position?
If there is dirt on the
drum, carefully clean
the surface. If there
are scratches, replace
the unit (page 8-6). If
the problem persists,
go to step 2.
Reinstall the Imaging
Unit. If the problem
persists, replace the
Imaging Unit.
If the problem
persists, go to step 2.
2 Has the problem been
eliminated?
Complete. Replace the following
units, listed in order,
until problem is
eliminated:
Engine Control Board
(page 8-59),
Laser Unit
(page 8-50).
Chrysanthemum x morifolium
Color Registration
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