Phaser 6128MFP Service Manual 5-39
Print-Quality Troubleshooting
Color Registration
A printed yellow or black image is not overlapped on a cyan or magenta image
correctly.
Initial Actions
• Check the paper transfer path.
• Ensure there are no debris on the transfer path.
Troubleshooting Reference Table
Applicable Notes Example Print
■ Imaging Unit (PL4.1.21)
■ Fuser (PL6.1.1)
■ Transfer Belt (PL6.1.7)
■ MCU Board (PL10.7.7)
Troubleshooting Procedure Table
Step Actions and Questions Yes No
1 Cycle the printer power.
Does the mis-registration (color
shift) appear on the print?
Go to step 2. Complete
2 Print a test page.
Is the image printed correctly?
Check the
printing data
for errors.
Go to step 3.
3 Check the paper being used and its
condition.
Is the paper dry and recommended
paper?
Go to step 5. Replace with
dry, approved
paper, then go
to step 4.
4 Does the mis-registration (color
shift) appear on the print?
Go to step 5. Complete
5 Open and close the Front Cover.
Does the Front Cover latch close
properly?
Complete Replace any
defective parts,
then go to step
6.