Causes for wrinkled or folded paper (part one, paper path entrance)
Cause
Solution
Cartridge shutter open/close mechanism is
damaged.
(This applies to jams in which paper is crumpled
into an accordion fold somewhere on the ETB
belt.)
The shutters in each print cartridge should open
as you close the ETB. If a shutter does not open,
reseat that cartridge. Replace the cartridge if
necessary. Also check for a damaged shutter
mechanism in the printer.
Table 7-16. Causes for wrinkled or folded paper (part two, paper path exit)
Causes for wrinkled or folded paper (part two, paper path exit)
Cause
Solution
Fuser inlet guide is dirty. Clean the fuser inlet guide.
Fuser pressure roller is dirty or damaged. Clean the pressure roller. If the pressure roller is
damaged, replace the fuser.
Fuser sleeve is dirty or damaged. Clean the fuser sleeve. If the fuser sleeve is
damaged, replace the fuser.
Fuser delivery roller is dirty. Clean the fuser delivery roller.
Table 7-17. Paper is skewed
Causes for skewed paper
Cause
Solution
Paper dust or dirt has accumulated in the
cassette feed roller or registration roller.
Clean the rollers.
Cassette feed roller and registration roller are
worn irregularly.
Replace the paper pickup assembly.
Pickup roller, separation roller, or feed roller in
the paper cassette is deformed.
If any one of these rollers is damaged, replace
all three rollers together.
Registration shutter is defective. Make sure the registration shutter moves
smoothly, its spring is in place, and it is clean. If
the registration shutter is damaged, replace the
paper pickup assembly.
Table 7-15. Causes for wrinkled or folded paper (part one, paper path entrance)
(continued)
342 Chapter 7 Troubleshooting ENWW
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