Original Detection

  • When the original is set in the original tray, the leading edge of the original pushes up the feeler of the original set sensor and the sensor detects the original.

Pickup Roller

The pickup roller alternates between the standby position (up) and operating position (down).

  • Standby (up) position: Lift cam [D] pushes the pickup lever [C] and this raises the pickup roller [B] to the standby (up) position.
  • Operating (down) position: The lift cam [D] releases the pickup lever [C] and the pickup roller [B] drops to the operating (down) position.

The pickup roller lift motor [A] turns on and rotates lift cam [D], so the rotating side of the cam alternately raises and lowers pickup lever [C] to the standby and operating positions.

Pickup roller standby position (up) timing is triggered:

  • When the original stack is set, and the edge of the stack raises the feeler of the original set sensor and switches the original set sensor on. (However, the roller does lower after the last original feeds.)
  • When the trailing edge of the original passes the skew correction sensor.
  • When the leading edge of either A4 SEF or A4 LEF arrive at the original registration sensor.

Pickup roller operating position (down) timing is triggered when the leading edge of the original is at the skew correction sensor at power on, or when paper feed cover is opened (this causes an original jam).