Ricoh FT4460, Service Manual, Page: 88 / 413

23 May 1989
5.7 TONER SUPPLY AND AGITATOR DRIVE MECHANISM
The toner supply clutch [A] controls the rotation of the agitator [B] and toner
supply roller [C]. The toner agitator prevents toner from clumping and rotates
at the same speed as the toner supply roller.
The black toner agitator is in the toner cartridge and the color development
agitator is in the toner hopper.
The black toner supply roller has 16 grooves [E]. Toner is caught in these
grooves and trimmed by the toner supply shaft plate located on one side of
the toner supply roller. This toner then enters to the development unit.
The color toner supply roller has only 6 grooves. Operation is the same as in
the black development unit.
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