High-Voltage Supply Board; Optical Unit; Figure 1-22. High-Voltage Supply Board; Figure 1-23. Optical Unit - Epson EPL-N1200 Service Manual

EPL-N1200 Service Manual

1.5.6 High-Voltage Supply Board

The high-voltage supply circuit board converts the development bias, OPC drum charge bias, and
image transfer bias.
Do not touch VR1 and VR2 on the high-voltage supply board. These volumes are for
factory setting only.

1.5.7 Optical Unit

The optical unit consists of the laser diode (semi-conductor laser), the mirror motor (scanner motor)
which drives the polygon mirror for laser scanning, and several mirrors and lenses. The laser beam
generated by the laser diode is conducted to the OPC drum surface by way of the polygon mirror,
as well as several mirrors and lenses, to create a latent electro-photographic image on the drum.
Rev. A
CAUTION

Figure 1-22. High-Voltage Supply Board

Figure 1-23. Optical Unit

General Description
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