2KZ/2K0
1-4-44
(9) Spots are printed.
(10) Image is blurred.
(11) The leading edge of the image is consistently misaligned with the original.
(12) The leading edge of the image is sporadically misaligned with the original.
Print example
Causes
Check procedures/corrective measures
Dirty contact glass.
Clean the contact glass.
Dirty or flawed drum.
Perform the drum refresh operation.
Flawed drum. Replace the drum unit (see page 1-5-16).
Deformed or worn cleaning
blade in the drum unit.
Replace the drum unit (see page 1-5-16).
Flawed developer roller.
Replace the developer unit (see page 1-5-14).
Dirty heat roller and press
roller.
Clean the heat roller and press roller.
Print example
Causes
Check procedures/corrective measures
Scanner moves erratically.
Check if there is any foreign matter on the front and rear
scanner rails. If any, remove it.
Deformed press roller.
Replace the fuser unit (see page 1-5-18).
Paper conveying section drive
problem.
Check the gears and belts and, if necessary, grease them.
Print example
Causes
Check procedures/corrective measures
Misadjusted leading edge reg-
istration.
Run maintenance mode U034 to readjust the leading edge
registration (see page 1-3-21).
Misadjusted scanner leading
edge registration.
Run maintenance mode U066 to readjust the scanner
leading edge registration (see page 1-3-31).
Print example
Causes
Check procedures/corrective measures
Paper feed clutch, registra-
tion clutch or duplex clutch
operating incorrectly.
Check the installation of the clutch. If it operates incor-
rectly, replace it.
Service Manual Y113010-4