Ricoh D009, Service Manual

Page: 576 / 1165

Around the Drum
D009/D011/D012/D013 6-26 SM
6.7.2 DRUM CLEANING
The PxP (Polyester Polymerization) toner of this machine is of much finer particle size so in
addition to the stationary cleaning blade (cleaning blade 1), mounted with two screws to a
spring loaded plate at the top of the PCDU, an additional cleaning blade (cleaning blade 2)
[A] has been added to increase the efficiency of drum cleaning.
The new cleaning blade is held in contact with the drum by two small springs [B] (one on
each end) that keep the cleaning blade in contact with the drum. This cleaning blade is not a
counter blade.
The tension of these springs has been reduced for this model in order to reduce the amount
of pressure applied by the bladed against the drum.
Every time the PCDU is opened for replacement or cleaning, the spring closest to the front
of the PCDU must moved in order to retract the cleaning blade away from the OPC drum.
After cleaning or replacement, the spring must be returned to its original position to keep the
blade in contact with the OPC drum for normal operation. For details, see “Replacement and
Adjustment”.