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Confidential
(3) Check that the display on the LCD is changed when the detection condition of each
sensor is changed.
For instance, insert paper to the document front (rear) sensor or the registration front
(rear) sensor, open the top cover or the back cover, take out the toner cartridge, make a
jam at the paper outlet, and insert paper from the manual feed slot, etc.
(4) When the Stop/Exit button is pressed, the machine beeps for one second and returns to
the initial state of the maintenance mode.
LCD Sensors
Sensing status
(OK/NG of temperature/humidity)
TMP External temperature sensor XX
°C/NG
HUM External humidity sensor XX %/NG
MAC temperature sensor XX
°C/NG
BT Belt thermistor XX
°C/NG
LCD Sensors Sensing status (OK/NG)
DF Document front sensor
Without documents/With document
DR Document rear sensor
Without documents/With document
AC ADF cover open sensor Close/Open
FH FB unit home position sensor Home position/Not home position
Note:
- The “--” appears on the LCD if there is no display.
- The “**” appears on the LCD if the parts are not installed or there is no item.
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