Canon DR-9080C Service Manual page 38

CHAPTER 2 FUNCTIONS & OPERATION
2. Document Tray Driving
Mechanism
Fig. 2-304 shows the document tray being
lowered and Fig. 2-305 shows the document tray
being raised.
The document tray for holding documents
and a box unit designed to raise and lower the
document tray work together.
supporting the document tray are attached to the
four corners of the box unit.
The rollers attached at the front ends of the
arms are fitted to the document tray. When the
arms rotate in a clockwise direction as they are
laid down (Refer to Fig. 2-304), the document
tray is raised up.
Document guide
Box unit
2 - 14
The arms for
Pick-up sensor
Pick-up roller
Document
Arm
Document tray
motor
Fig. 2-304
Arm
Fig. 2-305
COPYRIGHT © 2003 CANON ELECTRONICS INC.
When the arms rotate in a counterclockwise
direction as they stand vertically (Refer to Fig.
2-305), the document tray is lowered.
moving the arms of the box unit enables the
raising and lowering of the document tray.
Of the four arms, only the two arms fixed to
the right-end gear shaft are coupled to the gear.
Document sensor
Document tray
Light blocking plate
Arm
Document tray HP sensor
Arm
CANON DR-6080/9080C REV.0 SEPT. 2003
Thus,