Ricoh DD5450 Field Service Manual page 144

Chapter 3 Drum Driving Section
4
(3) Drum Removal Button / Paper Eject Switch LED
Description
When the drum removal button is pressed, the drum makes one rotation and stops with a bleep at
the stop position.
Then the LED on the drum removal button turns on.
Circuit
Drum removal button
Paper eject switch LED
142
Purple
CN9-1
Purple
-2
Black
CN9-3
white
-4
Drum removal
button
LED: Lights up
ON : 0V
OFF: 5V
Light up : 0V
Light out: 5V
Main PCB unit