COPYRIGHT© 2001 CANON INC.
2000 2000 2000 2000
CANON SADDLE FINISHER K3/K4 REV.0 MAR. 2001
2-65
CHAPTER 2 OPERATION OVERVIEW
6.1.3 Sub-tray control
Folder paper is sometimes output into tray B. The thickness of the folded paper is differ-
ent in the leading edge feeding direction and the trailing edge feeding direction. As the pile
of folded paper on the tray increases, incoming paper hits against the already stacked paper.
To counteract this, when folded paper is being stacked, the sub-tray ascends to increase the
bulk at the thinner trailing edge.
The sub-tray is raised and lowered by the sub-tray solenoid (SL3). The sub-tray solenoid
is a latch solenoid.
The sub-tray is raised when folding is selected on the control panel, and the Start key is
pressed. The tray is lowered when the copying is finished and the paper has been removed
from the tray. However, if stapling has been selected and the stapled stack contains A3/
LDR folded paper, the sub-tray is lowered once the first stack has been delivered.
F06-601-02
F02-601-03
Tray B
Sub-tr
a
y
(SL3)
dr
iv
e signal (attr
action)
Finisher controller PCB
Sub-tr
a
y
(SL3)
dr
iv
e signal (release)
Sub-tray solenoid
(SL3)
Tray B sensor
(PI17)
Sub-tray operating sequence
Copy Start
key ON
: Raise (solenoid released)
: Lower (solenoid engaged)
