Ricoh DD5450 Field Service Manual page 145

(4) Paper Eject Switch
Description
While holding down the paper eject switch, the drum rotates. When releasing the switch, the drum
stops rotating. The drum stop position is not detected. When removing the drum, press the drum
removal button.
Circuit
Paper eject switch
Purple
CN9-5
Purple
-6
CN9-7
Black
white
-8
Chapter 3 Drum Driving Section
4
LED : lights up
Paper eject switch
ON : 0V
OFF: 5V
Light up : 0V
Light out: 5V
Main PCB unit
３
143