Xerox Paser 7400 Service Manual page 49

4.
When the punching operation ends, the Feed Motor moves the paper through the
rest of the paper path. The Finisher Punch Transfer Motor then rotates in reverse
to return the slide unit to home.
5. For each sheet that arrives in succession, the Punch Slide Unit returns to its home
position and repeat steps 1 through 4 (the following illustration shows the top
view of the Punch Slide Unit in the Finisher).
Punch Slide Unit
Trailing Edge Sensor
(LED5, PT5)
Theory of Operation
Horizontal Registration Motor (M2P)
Direction Of Paper Delivery
Paper
Horizontal Registration Sensor 1 (LED1, PT1);
Used To Detect The Edge Of Sheets Of
A3, A4, LTR, 279X432 (11"x17")
Horizontal Registration Sensor 2 (LED2, PT2);
Used To Detect The Edge Of Sheets Of
B4, B5, LTRR, LGL.
Horizontal Registration Sensor 3 (LED3, PT3);
Used To Detect The Edge Of Sheets Of A4R.
Horizontal Registration Sensor 4 (LED4, PT4);
Used To Detect The Edge Of Sheets Of B5R.
Punch
s7400-155
2-17