Structure Of The Control System; Basic Structure; Electrical System And Functions - Brother HL-2600CN Service Manual

Color laser printer
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2.

STRUCTURE OF THE CONTROL SYSTEM

2.1

Basic Structure

2.1.1

Electrical System and Functions

Most of the main electrical parts of this printer are controlled by the MCTL (engine
controller) PCB.
<Structure of the Sequence Control>
The basic structure of the sequence control is shown in Fig.4-28.
c
Print Process Control:
d
Laser Output Control:
e
Fuser Temperature Control:
f
Toner Sensing Control:
g
Interface Control:
(Video Signal)
h
Control Panel Indicator:
i
Error Control:
To control the print process from the paper feed
through to the paper exit.
To automatically control the laser output.
To control the fixer heater so that the
temperature of the fuser roller and back-up
roller will be correct.
To control the sensing of the toner empty
status.
To process the input and output signals to and
from the external controller (host).
To display the printer operational status on the
control panel indicator.
To control the safety stop procedures when
errors occur in the printer.
IV-27

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