Drum Unit; Removing And Reinstalling The Drum Unit - Konica Minolta 7155 Service Manual

DRUM UNIT

[1] Removing and Reinstalling the Drum
Unit
Caution:
Be sure the power cord has been
unplugged from the wall outlet.
Caution1: Be sure to put a drum cover over the
removed drum unit and store the
drum unit in a dark place.
Caution2: When installing or removing the
drum unit, do not rotate it in the direc-
tion opposite to the specified one.
Rotating the drum unit in the oppo-
site direction during copy operation
could damage the cleaning blade.
Caution3: When installing or removing the
drum unit, take care not to touch the
separation claw.
Caution4: When installing a new drum, be sure
4
to enter mode 25 and select "Copy
Count by Parts to be Replaced" to
reset OPC drum counter.
a. Procedure
(1) Open the left and right front doors.
(2) While pressing the solenoid release lever on top
of the ADU rack to the left, flip the ADU rack pull-
out lever to the left.
(3) Loosen three screws to remove the drum cover.
Drum cover
ADU rack pullout lever
Solenoid release lever
(4) Loosen one screw and slide the blade fixing com-
ponent in the direction of the arrow until it stops
to release the crimp of the cleaning blade.
MODEL
7155/7165/7255/7272 SERVICE MANUAL
Screws
MANUAL REVISED EDITION
3-E-1
(5) Loosen the screw of the blade fixing component.
Blade fixing component
(6) Remove the two screws securing the drum unit.
(7) Release the toner supply pipe in the direction of
the arrow.
(8) Remove the screw securing the coupling to
detach the drum shaft coupling and drum cou-
pling.
(9) Hold the two sections shown in the figure and pull
out the drum unit.
Screws
Drum unit
Drum coupling
(10) Reinstall the above parts following the removal
steps in reverse.
Caution: To install the coupling, see "[2] Install-
ing the Coupling."
DATE PAGE
Dec. 2003 3-E-1
4
DRUM UNIT
Release
Screw
Toner supply pipe
Hold here
Screw
Drum shaft coupling
METHOD
REPLACEMENT