Canon DR-9080C Service Manual page 39

First, the raising of the document tray will be
explained.
1) When a document getting picked up is
detected by the document sensor of the
document tray, the document tray motor is
started.
2) When the motor force is transmitted to the
gear and the gear is rotating, the front and
back arms fixed to the right-end gear shaft
begin to rotate in a clockwise direction as
they are laid down. At the same time, the
document tray begins to rise.
3) After the document tray is slightly raised and
the light blocking plate installed on the
document tray switches the document tray
HP sensor OFF, the document tray is raised
until the motor has rotated a preset amount.
4) When the lever located between the pick-up
rollers is pushed up by the document to turn
ON the pick-up sensor, while the document
tray is being raised, the document tray motor
stops. At the same time, the raising of the
document tray is stopped.
5) After that, the pick-up motor and feed motor
are started simultaneously to feed the
document.
COPYRIGHT © 2003 CANON ELECTRONICS INC.
be explained.
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CANON DR-6080/9080C REV.0 SEPT. 2003
CHAPTER 2 FUNCTIONS & OPERATION
Next, the lowering of the document tray will
When the documents on the document tray
run out, the pick-up sensor detects no
document.
After a given time, the document tray motor
begins to rotate in reverse.
The front and back arms fixed to the
right-end gear shaft begin to rotate in a
counterclockwise direction as they stand
vertically. At the same time, the document
tray begins to drop down.
The light blocking plate moves, switching the
document tray HP sensor from OFF to ON,
and the document tray is stopped.
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