Uneven Pitch - Xerox Phaser 6121MFP Service Manual

Uneven Pitch

Phaser 6121MFP Service Manual
The pitch along the feed direction is uneven or inconsistent.
Initial Actions
Perform the initial actions listed on page 5-5.
Troubleshooting Reference Table
Applicable Parts
Toner Cartridge
Imaging Unit,
PL4.0.13
Transfer Roller,
PL7.1.10
Fuser, PL11.0.18
Troubleshooting Procedure Table
Step Actions and Questions
1 Do faint lines occur at a
pitch of 25 mm in the
main scanning direction?
2 Inspect the toner
cartridge.
Is the drive mechanism
clean?
Are the cartridges for
each color in place?
3 Inspect the Laser Unit. Is
the unit secured in
position with the fixing
screw?
4 Inspect the Imaging Unit.
Is the photo-conductor
surface dirty or scratched?
Example Print
Yes
Allow the printer to
stand idle in an
environment free of
high humidity.
Go to step 3.
Go to step 4.
Replace the Imaging
Unit (page 8-6). If
the problem persists,
go to step 5.
Print-Quality Troubleshooting
Repeating Light or Dark Lines
No
Go to step 2.
Clean the mechanism
and reinstall the
cartridge. If the
problem persists, go
to step 3.
Tighten the fixing
screw. If the problem
persists, go to step 4.
Go to step 5.
5-29