FS-9120DN/9520DN
1-5-32
(11) The leading edge of
the image is mis-
aligned.
Causes
1. Feed clutch, paper feed clutch, MP paper feed
clutch or registration clutch installed or
operating incorrectly.
2. Defective engine controller PWB.
Causes Check procedures/corrective measures
1. Feed clutch, paper feed clutch, MP paper
feed clutch or registration clutch installed or
operating incorrectly.
2. Defective engine controller PWB.
(10) Image is blurred.
(9) Black dots appear on
the image.
Causes
1. Dirty or flawed drum.
2. Deformed or worn cleaning blade.
3. Dirty drum separation claws.
4. Dirty heat roller separation claws.
Causes Check procedures/corrective measures
1. Dirty or flawed drum.
2. Deformed or worn cleaning blade.
3. Dirty drum separation claws.
4. Dirty the heat roller separation claws.
Causes
1. Deformed press roller.
2. Paper conveying section drive problem.
Causes Check procedures/corrective measures
1. Deformed press roller.
2. Paper conveying section drive problem.
Replace the press roller (see page 1-6-18).
Check the gears and belts and, if necessary, grease them.
Check the installation position and operation of the feed clutch,
paper feed clutch, MP paper feed clutch and registration clutch. If
any of them operates incorrectly, replace it.
Replace the engine controller PWB (see page 1-6-24).
Perform the drum refresh operation. If the drum is flawed, replace
the drum unit.
Replace the drum unit (see page 1-6-14).
Clean the drum separation claws.
Clean the heat roller separation claws.
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