Optional Tray Sensors - Xerox Paser 7400 Service Manual

Duplex sensors include:
Duplex Entrance Sensor
Detects the leading edge of the media and signals the Duplex Motor to begin
rotation in the forward direction.
Duplex Reverse Sensor
Detects media in the lower portion of the Duplex Unit and signals the Duplex
Motor to reverse rotation.
Duplex Front and Rear Sensors
Monitor media transport through the upper portion of the Duplex Unit.

Optional Tray Sensors

The paper supply and path for the optional trays involve these sensors (see page 5-133
for detailed illustrations and sensor location):
Door C Detect Sensor
Detects presence of media in the tray based on the position of the Actuator.
Registration Sensor
This sensor detects media as it arrives at the Registration Rollers.
Feed-Out Sensor
This sensor detects the media as it leaves the Tray 3 Feed Rollers.
No Paper Sensor
The actuator lowers as print media is used in the tray. When the actuator lowers
to a pre-determined position, it blocks the sensor to trigger a low paper status.
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