COPYRIGHT © 1999 CANON INC.
CANON FINISHER - D1 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
2-41
CHAPTER 2 OPERATIONS
Figure 2-402 (Tray Auxiliary Plate Retracted)
Figure 2-403 (Tray Auxiliary Plate Out)
2.
Operation
When multiple sheets are stacked on tray B, the leading edge of the stack tends to bend down,
and would flap down if the stack was moved halfway off the processing tray, preventing the sheets to
move against the stopper despite tapping by the paddles and, ultimately, causing the following:
a.
Poor alignment of sheets in feeding direction at time of stapling
b. Poor alignment of sheets in feeding direction at time of an offset job (on tray B)
To prevent the above, the DC controller PCB slides the tray auxiliary plate outside the machine
while sheets are being placed on the processing tray. With the tray auxiliary plate supporting the
sheets from below, the stack will lie straight maintaining correct alignment.
Since the tray auxiliary plate is retracted when discharging stacks, it will not affect delivery. The
plate is slid out once again when the next sheet is placed on the processing tray (after detecting the
paper surface to prevent interference with detection).
Tray B
Tray auxiliary plate
Sheets on the
processing tray
Existing
stacks
Tray B
Existing
stacks
