Table of Contents
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June 10th, 1997
1. PCBs
No.
Name
FCU (Facsimile Control
3
Unit)
PSU (Power Supply Unit)
4
NCU (Network Control
5
Unit)
Power Pack
6
Contact Image Sensor
and Xenon Lamp
18
LDDR (Laser Diode
20
Driver)
OPU (Operation Panel
25
Unit)
2. Motors and Clutches
No.
Name
Ozone Fan Motor
1
Paper Feed Motor
2
Main Motor
8
Polygon Mirror Motor
23
24
Scanner Motor
28
ADF Motor
OVERALL MACHINE INFORMATION
Description
This board controls the machine. It contains the main
cpu, flash ROM, system RAM, and so on.
This board supplies power to the machine, and
switches the fusing lamp on/off.
This board contains a relay and switches for interfacing
the machine to the network and the handset.
This supplies high voltages to the corona wire, transfer
roller, and development bias terminal.
This sensor reads and converts the light reflected from
the document into an analog video signal. It uses an
RMLA (Roof Mirror Lens Array) sensor unit.
The xenon lamp which illuminates the document is
contained in this unit.
This board drives the laser diode.
This board controls the operation panel.
Description
This removes ozone-laden air from the vicinity of the
drum, and filters out the ozone.
This stepper motor drives the registration roller and the
paper feed mechanisms in the cassette.
This brushless dc motor drives the drum, fusing unit,
development unit, and CTM.
This high-speed dc motor drives the hexagonal mirror
in the laser printer optics.
This stepper motor drives the book scanner.
This stepper motor drives the scanner.
1-9
COMPONENT LAYOUT
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