4 Paper Exit Sensor
This sensor detects a paper jam in the fusing unit, paper exit path
and duplex path.
5 Paper End Sensor This sensor detects paper end and whether the tray is set.
6 Registration Sensor
This sensor detects a paper jam at the paper feed, by-pass feed
and registration roller, and also determines the paper size
based on the sensor on-off time.
No. Parts Name Description
1 EGB (Engine Board)
This board controls all of the machine, input/output, drivers and
input/output connections and the handshake with the
Controller.
2
Controller Board (printer
model)
This board controls the memory, all applications and all
peripheral devices.
3
Temperature/Humidity
Sensor
This sensor detects the relative temperature and humidity around
the machine.
4
High Voltage Power Supply
Board
This board supplies the charge to the image transfer roller and
high voltage for the charge roller, transfer roller and the
development roller.
Machine Overview
163
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