Vertical Blank Lines - Xerox Phaser 6128MFP Service Manual

Print-Quality Troubleshooting

Vertical Blank Lines

Initial Actions
5-16
There are faded or completely non-printed lines along the page in the direction of
the paper travel from the leading edge to the trailing edge.
• Check the area around the Laser Unit windows and openings in the Imaging
Unit. Small obstructions, such as hair or fibers, can create streaks.
• Ensure there is no debris on the media path.
Troubleshooting Reference Table
Applicable Parts
Laser Unit Kit (PL4.1.99)
Imaging Unit (PL4.1.21)
Transfer Belt (PL6.1.7)
IP Board (PL10.6.6)
MCU Board (PL10.7.7)
Troubleshooting Procedure Table
Step Actions and Questions
1 Check the paper condition
Is the paper dry and approved for
use?
2 Is the image printed correctly?
3 Inspect the paper path between the
Transfer Belt and Fuser.
Is there any debris or other foreign
substance in the paper path?
4 Is the image printed correctly?
5 Inspect the Transfer Belt surface.
Is there any damage to the transfer
belt surface?
Example Print
Vertical Blank Lines
Yes No
Go to step 3. Replace with
dry, approved
paper, then go
to step 2.
Complete Go to step 3.
Remove the Go to step 5.
debris or
foreign
substances,
then go to step
4.
Complete Go to step 5.
Replace the Go to step 6.
Transfer Belt
(page 8-103).
Phaser 6128MFP Service Manual