Original Detection

When an original is placed on the original tray correctly, the leading edge of the original pushes up the feeler of the original set sensor.

Pick-up Roller Shift up / down

When no original is placed, the pick-up roller [C] is in the upper position (released). When the original set sensor detects an original, the ADF pick-up roller lift motor [A] turns ON. When the lift cam [E] releases the pick-up lever [D], the pick-up roller [C] moves down. To lift the pick-up roller [C] away from the paper, the ADF pick-up roller lift motor [A] turns on until the bottom plate position sensor [B] turns off. Then the ADF pick-up roller lift motor [A] turns off.

Pick-up Roller Down Timing

  • When the original set sensor detects that an original has just been placed
  • When the trailing edge of an original passes the skew correction sensor (except for the final sheet of an original). For A4 LEF / LT LEF, when the trailing edge of the original passes the original registration sensor.

Pick-up Roller Lift Timing

  • When the leading edge of an original passes the skew correction sensor
  • Just after the main power switch turns on
  • When the ADF feed cover is opened
  • When there is an original jam