General Description
1300 Service
1.5.4
Board
The
is the high-voltage supply circuit board. It converts the development bias,
drum
charge bias, and image transfer bias.
Do
not touch
on
board, as it is set
at the
and
should not be
changed.
Figure 1-19.
Board
1.5.5 Optical Unit
The optical unit consists of the laser diode
laser), the mirror motor (scanner motor)
which drives the polygon mirror
laser
and several mirrors and lenses.
laser beam
generated by the laser diode is conducted to the
drum
by way of the polygon mirror,
as well as several mirrors and lenses, to create a latent
image on the drum.
Figure 1-20. Optical Unit
1-26
Rev.