Xerox PHASER 6121MFP - Page 73

Phaser 6121MFP Service Manual 2-31
Theory of Operation
When a replacement request is made for a Toner Cartridge, the Toner Cartridge
Rack is rotated 70 degrees from the depleted cartridges’ developing position by
the Rack Motor.
M
M
Y
Y
K
K
C
C
s6121mfp-137
Detection Of M
Developing Position
Detection Of Y
Developing Position
Detection Of K
Developing Position
Detection Of C
Developing Position
Standby Position
Detecting Position
Rack Positioning Sensor
(In Standby Position)
Direction of Rotation of the
Toner Cartridge Rack
Photo Conductor