5-19
Confidential
(3) Check that the display on the LCD is changed when the detection condition of each
sensor is changed.
For example, insert paper through the registration front/rear sensor, open the front cover
or the back cover, remove the toner cartridge, make a jam at the paper outlet, insert paper
from the MP tray, set the paper tray, etc.
(4) Press the X key and finish this operation to return the machine to the initial state of the
maintenance mode.
■ Location of sensors
Fig. 5-6
LCD Sensor names Detection status (displayed/not displayed)
MAC XXC Internal temperature sensor XX
°C/NG
BT XXC Belt temperature sensor 0
°C (The value will not be changed since this
sensor is not installed.)
TMP XXC External temperature sensor XX
°C/NG
HUM XXC External humidity sensor XX %/NG
DF Document detection sensor Without documents/With document
DR First side document scanning
position sensor
Without documents/With document
AC ADF cover sensor ADF cover closed/open
DB Second side document
scanning position sensor
Without documents/With document
Note:
If the external temperature/humidity sensor detects the unusual value, the machine displays
“NG” on the LCD.
Registration front sensor
Registration rear sensor
External temperature sensor
T1 paper feed sensor
Front cover sensor
External humidity sensor
High-voltage power supply
Paper feed unit
Process drive unit
Registration front/rear
sensor PCB ASSY
PCB ASSY
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General
Weight and Dimensions
