Structure Of Control System; Basic Structure - Hitachi SL1 Maintenance Manual

4.2 Structure of Control System

4.2.1 Basic Structure

(1). Electrical System and Function
Most of main electrical parts of this printer is controlled by MCTL P.W.B.
Structure of Sequence Control
Basic structure of the sequence control is exhibited in Fig.4-27.
1
. Print Process Control
2 . Laser Output Control
. Fuser Temperature Control: To control the fuser heater so that temperature
3
4 . Toner Sensing Control
5
. Interface Control
(Video Signal)
6
. Operator Panel Indicator
7
. Error Control
: To control the print process from the paper
feed through paper exit.
: To control automatically the laser output to
the default.
of fuser roller and back-up roller will be the default.
: To control the sensing procedures of toner empty
status.
: To process the input and output signal with the
external controller (host).
: To display the printer operation status in the
operator panel indicator.
: To control the safe stop procedures when errors
occur in the printer.
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