Process Unit; Opc Drum - Sharp AR-M550N Service Manual

: Feb. 6 2004
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a. Process unit
1) Open the front door.
2) Open the process cover.
3) Open the left door.
4) Remove the MC charger unit.
5) Remove the blue screw.
6) Unfix the drum to remove the bearing.
7) Pull out the process unit by clasping the bolt head.
AR-M550/M620/M700 DETAILS OF EACH SECTION 6 - 78
a-1. OPC drum
1) Disconnect the connectors.
2) Remove the blue screw to open the lower frame.
3) Gently remove the drum, guide and all.
4) Remove the guide.
NOTE:
(OPC layer break-off on both sides of the OPC drum)
The OPC layer of a certain area of the OPC drum may break off due to
rotational friction. The OPC layer break-off generated in the area
shown below will not affect print images. Therefore, the drum can be
used without replacement.
14mm
NOTE: When replacing the OPC drum, apply friction-reducing powder
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(UKOG-0309FCZZ) to all over the drum (F and R) in order to
reduce friction and membrane decrease of the OPC layer on
both sides of the OPC drum. (Use PARTEL (UKOG-
0311FCZZ).)
12mm