Brother HLL3290CDW Service Manual page 171

■
Print crease
<User Check>
Step
1 Fuser unit failure
■
Spots at the rear edge of paper
<User Check>
Step
1 Fuser unit failure
• Check the usage environment of the machine. Using the machine in
hot-humid or cold-dry conditions can cause this problem.
• Change the paper to thick paper.
• Check if paper is not damp.
• Check if the thickness of the paper is properly set in the driver.
• For Plain paper, check whether the envelope levers are at the top. Even
so, if print wrinkles occur, lower the envelope levers to the position "B"
to perform printing. (Refer to the figure below.)
Cause
<Back side>
Envelope lever
Fig. 2-23
• Check the usage environment of the machine. Using the machine in
hot-humid or cold-dry conditions can cause this problem.
• For thick paper such as Thick paper or Envelope, perform printing with
the envelope levers lowered to the bottom; for non-thick paper such as
Plain paper, perform printing with the envelope levers lowered to the
position "B". (Refer to the figure above.)
Cause
2-135
Remedy
Replace the fuser unit.
Remedy
Replace the fuser unit.
B
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