5-20
Phaser 3140/3155/3160 Printer Service Manual
Print-Quality Troubleshooting
Vertical Lines are Curved
When printing, vertical lines are not straight.
Initial Actions
•
Cycle printer power.
•
If the problem persists, refer to the following procedure.
5
Check the Transfer Roller surface for
damage.
Is the Transfer Roller surface
damaged?
Replace the
Transfer Roller
(page 8-8). If
the problem
persists, go to
step 6.
Go to step 6.
6
Replace the Fuser (page 8-11).
Does the problem persist?
Replace the
Laser Unit
(page 8-30).
Complete.
Troubleshooting Reference Table
Applicable Parts
Example Print
■
Laser Unit, PL6.0.79
■
Controller Board, PL1.0.2
Troubleshooting Procedure Table
Step
Actions and Questions
Yes
No
1
Replace the Laser Unit
Does the problem persists?
Go to step 2.
Complete.
2
Replace the Controller Board
(page 8-51).
Complete.
Troubleshooting Procedure Table (Continued)
Step
Actions and Questions
Yes
No
Vertical Lines Are Curved
