Optics Unit Fan; Laser Exposure - Ricoh G157 Service Manual

6.4.4 OPTICS UNIT FAN

The optics unit fan cools down the
laser optics unit.
NOTE: The optics unit fans is
necessary to decrease the
temperature inside the
machine.

6.4.5 LASER EXPOSURE

The optical housing unit [A] emits the
laser beam and writes latent images on
the OPC belt [B].
SM
OPTICAL HOUSING UNIT
[B]
[A]
6-17
G157D916.WMFF
G157D917.WMFF
G157