Xerox PHASER 7500 - Printer Maintenance and Cleaning

2-38 Phaser 7500 Printer Service Manual
Theory of Operation
2nd BTR Contact Retract Motor (PL14.4.10)
The 2nd BTR Contact Retract Motor drives the shaft with the attached Cam that
operates in tandem with the 2nd BTR. This motor operates when transferring the
toner image from the belt onto the paper. By rotating the Cam, the 2nd BTR
contacts the paper that is passing on the belt.
POB Sensor (PL14.4.16)
The POB Sensor detects the paper with transferred image that has passed the belt
during the Secondary Transfer process.
Note
No paper: Sensor reflective
2nd BTR Contact/ Retract
The following illustration shows the mechanical components of the 2nd BTR
Contact/ Retract.
s7500-373
Belt
2nd BTR Assembly
2nd BTR Contact Retract Sensor
Cam
Cam
2nd BTR Contact
Retract Motor
Actuator