Xerox phaser 6250 Service Manual page 271

Removing the Duplex Sensor
1.
Remove the Duplex Actuator (item #1).
2.
Release the 3 tabs securing the Duplex Sensor and remove the sensor.
3.
Disconnect P/J133 from the Duplex Sensor.
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Phaser 6250 Color Laser Printer Service Manual
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6250-183
6250-185