Xerox Phaser 3450, Service Manual, Page: 64 / 155

6-9
Alignment & Adjustments
Service Manual
• Simplex
1) A paper is fed from a cassette or MPF by a printing order.
2) The fed paper passes a paper feeding sensor.
- If the sensor does not operate after feeding the paper, the Jam0 occurs.
3) The paper passes a paper exit sensor, and it comes out from a machine.
- If the tailing edge of the paper does not come out from a machine after the leading edge
of the paper passes the sensor, then certain time later, a Jam2 occurs.
• Duplex
1) A paper is fad from a cassette or MPF by a printing order.
2) The fed paper passes a paper feeding sensor.
- If the sensor does not operate after feeding the paper, a Jam0 occurs.
3) The paper that passes a paper exit sensor takes several printing processes, and moves to a
paper exit sensor.
- If the sensor does not operate after certain time, a Jam 1 occurs.
4) If the paper does not discharge until the paper passes an exit roller and a Roller-Exit-F/Down, a
Jam 2 occurs.
5) The printing paper starts to be printed for duplex only by reversing rotation by an exit motor. The
printing paper enters to a machine through an exit roller, and reaches to duplex sensor.
- If the printing paper cannot reach to the duplex sensor after certain time, a duplex Jam 1
occurs.
6) The printing paper that passes the duplex sensor reaches to a feed sensor again and a printing
operation is tried over again.
- If the printing paper cannot reach to a feed sensor after certain time later, a duplex Jam 2
occurs.
<Jam 2>
<Jam Duplex 1> <Jam Duplex 2>