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2KN/2KP
1-4-57
(16) Fusing is poor.
(17) Image is out of focus.
(18) Image center does not align with the original center.
(19) Image is not square.
Copy example
Causes
Check procedures/corrective measures
Wrong paper.
Check if the paper meets specifications. Also check if the
specifying the paper type of machine default is proper (see
page 1-3-101).
Defective pressure nuts.
Tighten the fuser pressure nuts.
Flawed heat roller or press roller.
Replace the heat roller or press roller (see pages 1-5-70 or
60).
Defective fuser heater.
Replace the fuser heater (see page 1-5-66).
Copy example
Causes
Check procedures/corrective measures
Defective image scanning unit.
Replace the image scanning unit (see page 1-5-39).
Drum condensation.
Clean the drum.
Copy example
Causes
Check procedures/corrective measures
Misadjusted center line of image print-
ing.
Readjust the center line of image printing (see page 1-3-
15).
Misadjusted scanner center line.
Readjust the scanner center line (see page 1-3-27).
Original placed incorrectly.
Place the original correctly.
Copy example
Causes
Check procedures/corrective measures
Laser scanner unit positioned incor-
rectly.
Adjust the installation position of the laser scanner unit (see
page 1-5-42).
Image scanning unit positioned incor-
rectly.
Adjust the installation position of the image scanning unit
(see page 1-5-43).
Summary of Contents for TASKalfa 620
Page 1: ...SERVICE MANUAL Published in August 2009 842KP112 2KPSM062 Rev 2 TASKalfa 620 820 ...
Page 4: ...This page is intentionally left blank ...
Page 10: ...This page is intentionally left blank ...
Page 144: ...2KN 2KP 1 3 106 This page is intentionally left blank ...
Page 308: ...2KN 2KP 1 5 88 This page is intentionally left blank ...
Page 412: ...2KN 2KP 2 3 60 This page is intentionally left blank ...
Page 435: ...1 1 INSTALLATION GUIDE INSTALLATION GUIDE FOR SIDE FEEDER ...
Page 442: ...INSTALLATION GUIDE FOR LARGE SIZE SIDE FEEDER ...
Page 460: ...INSTALLATION GUIDE FOR DOCUMENT FINISHER ...
Page 475: ...INSTALLATION GUIDE FOR CENTERFOLD UNIT ...
Page 490: ...INSTALLATION GUIDE FOR MULTI JOB TRAY ...
Page 501: ...INSTALLATION GUIDE FOR PUNCH UNIT ...
Page 512: ...INSTALLATION GUIDE FOR STOPPER GUIDE ...
Page 515: ...INSTALLATION GUIDE FOR PRINTING SYSTEM ...
Page 518: ...INSTALLATION GUIDE FOR SCAN SYSTEM ...
Page 520: ......
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