Fusing Drive Mechanism - Ricoh FT4430 Service Manual

16 April '88

FUSING DRIVE MECHANISM

The fusing drive gear [A] turns the release gear [B] which drives the hot roller
gear [C]. Rotation passes from the hot roller gear through two idle gears to
the exit rollers. The friction between the hot roller and the pressure roller
drives the pressure roller.
The release gear spring [D] allows the release gear to move in and out. This
prevents the gears from being damaged if they should not engage correctly
when the fusing unit is set. Also
operator can disengage the release gear and the fusing drive gear so that the
fusing rollers can be turned easily for removing misfeeds.
by pulling the fusing knob out slightly, the
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