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General Description
1.5.4 PWB-F Board
The PWB-F is the high-voltage supply circuit board. It converts the development bias, OPC drum
charge bias, and image transfer bias.
not touch VR2F on PWB-F board, as it is set
Do
1.5.5 Optical Unit
The optical unit consists of the laser diode (sernkonductor laser), the mirror motor ( scanner motor)
which drives the polygon mirror tbr laser scannin~ and several mirrors and lenses. The laser beam
generated by the laser diode is conducted to the OPC drum surfaa? by way of the polygon mirror,
as well as several mirrors and lenses, to create a latent elecbvphotographic image on the drum.
1-26
at the
Figure 1-19. PWB-F Board
Figure 1-20. Optical Unit
should not be
and
changed.
Rev. A
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