Replacing The Registration Rollers 1 And 2 - Konica Minolta 7020 Service Manual

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PAPER FEED UNIT
[6] Replacing the DF Prevention Lower
Rubber (Lower Tray)
a. Procedure
(1) Open the ADU door, and then open the conveyance
unit.
(2) Remove the developing unit and the drum unit.
(3) Slide the lower tray out. Remove the 2 set screws
holding the tray in place, and take the tray off.
(4) Open the guide plate, and remove the set screw
fastening the double feed prevention roller unit in
place.
1
Double feed prevention
roller unit
(5) From the inside of the main body, press on the two
ends of the roller unit and remove it.
(6) While pressing on the lever on the lever click shaft,
pull out the shaft and then remove the double feed
prevention roller.
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Paint mark
(7) Remove the double feed prevention lower rubber
from the roller.
(8) Reinstall in the opposite sequence to removal.
Guide plate
Set screw
Double feed prevention
lower rubber
Double feed
prevention roller
Lever click shaft
[7] Replacing the Registration Rollers
1 and 2
a. Procedure
(1) Open the ADU door, and then open the conveyance
unit.
(2) Remove the developing unit and the drum unit.
(3) Slide the upper tray out. Remove the 2 set screws
holding the tray in place, and take the tray off.
(4) Slide the lower tray out. Remove the 2 set screws
holding the tray in place, and take the tray off.
(5) Remove the registration clutch.
(6) Remove the all external cover from the front.
Registration roller (2)
(7) Stretch the 2 registration springs (front and rear)
upward and remove them from the flanges on the
registration bearings.
1
Registration
bearings
E-rings
Registration spring
3-J-6
Registration
roller (1)
Registration bearings
E-rings
Registration spring