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2DA/2DB-1
1-5-30
(9) Black dots appear on the image.
Causes
1. Dirty or flawed drum.
2. Dirty contact glass.
3. Deformed or worn cleaning blade.
4. Dirty drum separation claws.
5. Dirty heat roller separation claws.
Causes
Check procedures/corrective measures
1. Dirty or flawed drum.
Clean the drum or, if it is flawed, replace the drum unit (see page 1-6-38).
2. Dirty contact glass.
Clean the contact glass.
3. Deformed or worn cleaning blade.
Replace the drum unit (see page 1-6-38).
4. Dirty drum separation claws.
Clean the drum separation claws.
5. Dirty the heat roller separation claws.
Clean the heat roller separation claws.
(10) Image is blurred.
Causes
1. Scanner moves erratically.
2. Deformed press roller.
3. Paper conveying section drive problem.
Causes
Check procedures/corrective measures
1. Scanner moves erratically.
Check if there is any foreign matter on the front and rear scanner rails. If
any, remove it.
2. Deformed press roller.
Replace the press roller (see page 1-6-45).
3. Paper conveying section drive problem.
Check the gears and belts and, if necessary, grease them.
(11) The leading edge of the image is
consistently misaligned with the
original.
Causes
1. Misadjusted leading edge registration.
2. Misadjusted scanner leading edge registration.
Causes
Check procedures/corrective measures
1. Misadjusted leading edge registration.
Readjust the leading edge registration (see page 1-6-16).
2. Misadjusted scanner leading edge regis-
tration.
Readjust the scanner leading edge registration (see page 1-6-35).
Содержание KM-1650
Страница 1: ...SERVICE MANUAL Published in June 05 2DA70763 Revision 3 KM 1650 2050 ...
Страница 4: ...This page is intentionally left blank ...
Страница 10: ...This page is intentionally left blank ...
Страница 248: ...2DA 2DB 1 2 3 2 Figure 2 3 2 Power source PCB silk screen diagram 220 240 V AC 120 V AC ...
Страница 265: ...2DA 2DB 1 2 3 19 Figure 2 3 10 Operation unit PCB silk screen diagram ...
Страница 280: ......