2KR/2KS
1-4-52
(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.
Copy 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 press roller (see page 1-5-32).
Paper conveying section drive prob-
lem.
Check the gears and belts and, if necessary, grease them.
Copy example
Causes
Check procedures/corrective measures
Misadjusted leading edge registration. Run maintenance mode U034 to readjust the leading edge
registration (see page 1-3-22).
Misadjusted scanner leading edge
registration.
Run maintenance mode U066 to readjust the scanner lead-
ing edge registration (see page 1-3-29).
Copy example
Causes
Check procedures/corrective measures
Feed clutch, paper feed clutch, MP
paper feed clutch or registration
clutch installed or operating incor-
rectly.
Check the installation position and operation of each clutch.
If any of them operates incorrectly, replace it.
Copy example
Causes
Check procedures/corrective measures
Paper curled.
Check the paper storage conditions.
Paper damp.
Check the paper storage conditions.
Defective pressure springs.
Replace the pressure springs.
Defective separation.
Check the drum separation claws and heat roller separation
claws.
Summary of Contents for TASKalfa 420i
Page 1: ...SERVICE MANUAL Published in May 2010 842KS113 2KSSM063 Rev 3 TASKalfa 420i TASKalfa 520i ...
Page 4: ...This page is intentionally left blank ...
Page 10: ...This page is intentionally left blank ...
Page 14: ...2KR 2KS This page is intentionally left blank ...
Page 224: ...2KR 2KS 1 4 66 This page is intentionally left blank ...
Page 328: ...2KR 2KS 2 3 30 This page is intentionally left blank ...
Page 371: ...INSTALLATION GUIDE FOR PAPER FEEDER ...
Page 381: ...INSTALLATION GUIDE FOR 3000 SHEETS PAPER FEEDER ...
Page 436: ...INSTALLATION GUIDE FOR CENTER FOLDING UNIT ...
Page 450: ...INSTALLATION GUIDE FOR MAILBOX ...
Page 458: ...INSTALLATION GUIDE FOR HOLE PUNCH UNIT ...
Page 470: ...INSTALLATION GUIDE FOR BUILT IN FINISHER ...
Page 483: ...INSTALLATION GUIDE FOR JOB SEPARATOR ...
Page 491: ...INSTALLATION GUIDE FOR FAX System ...
Page 507: ......
Page 508: ......