Print Crease - Brother HL-4140CN Service Manual

■ Print crease

<User Check>
Step
1 The pressure of the pressure
roller is high
2 Fuser unit failure
■ Spots at the rear edge of paper
<User Check>
Step
1 The pressure of the pressure
roller is high
2 Fuser unit failure
- Check the printer's environment. This symptom occurs when the
printer is used in the high humidity environment.
- Change the paper to thick paper.
- Check if paper is not damp.
Cause
- Check the printer's environment. This symptom occurs when the
printer is used in the high humidity environment.
Cause
<Back side>
Fig. 2-15
2-110
Change the position of the PR arm covers.
(Refer to the figure below.)
Replace the fuser unit.
Change the position of the PR arm covers.
(Refer to the figure below.)
Replace the fuser unit.
Envelope lever
PR arm cover
Remedy
Remedy
Envelope lever
PR arm cover
Confidential