Diagnostic aids
3-25
4024-110
•
Stapler unit motor (in the stapler unit assembly)
–
A DC motor to activate the stapler unit assembly for stapling
–
Clockwise rotation of this motor enables stapling, while counterclockwise rotation returns the stapler
unit assembly.
Upper media bin
Operation
The upper media bin contains the sensor (upper media bin full) to detect the media stack volume in the upper
media bin.
Once the sensor detects “full stack” (500 sheets) of the upper media bin, ejection of media to the upper media
bin is inhibited until “full stack” is reset.
Functions of upper media bin sensors
•
Sensor (upper media exit)
–
A photo-interrupter to detect that media has come to the upper media exit roll assembly top at the exit
of the upper media bin
–
When media reaches the upper media exit roll assembly top, the actuator leaves the sensing area,
which turns the sensor to “H” (+5 V dc).
•
Sensor (upper media bin full)
–
A reflective photo-sensor to detect the media stack volume in the upper media bin
–
It turns “H” (+5 V dc) when it detects “full stack”.
Sensor (stapler carriage HP)
Stapler carriage motor asm
Stapler
rack gear
Содержание W850dn
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