COPYRIGHT© 2001 CANON INC.
2000 2000 2000 2000
CANON SADDLE FINISHER K3/K4 REV.0 MAR. 2001
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CHAPTER 2 OPERATION OVERVIEW
7.1.7 Punch waste "Full" sensor
The punch waste "full" detection mechanism consists of a punch waste sensor located on
the side of the punch waste container and prisms mounted inside the punch waste container.
The punch waste container set sensor (PI53) detects when the punch waste container has
been set by the finisher.
The punch waste sensor PCB (S6) consists of two light-emitting cells and two light-re-
ceiving cells for warning level detection and full level detection. When the punch waste set
sensor (PI26) detects the container, the LED for warning level detection emits light. If the
punch waste has not reached the warning level, the output from the light-receiving cell is
ON and the finisher controller PCB judges that the warning level has not been reached. If
waste has accumulated in the container and has reached the warning level, the light from the
warning level detection LED for is interrupted and the finisher controller PCB judges that
the warning level has been reached.
When the warning level has been reached, the full level detection LED comes on instead.
If light emitted from the full level detection LED reaches the light-receiving cell, the fin-
isher controller PCB judges that the full level has not been reached. If waste has accumu-
lated in the container and has reached the full level, the light from the LED for full level de-
tection is interrupted and the finisher controller PCB judges that the full level has been
reached.
Warning level : The punch continues operation until completion, or until the full level is
detected. New punching operation cannot be commenced.
Full level
: The punch suspends activity mid-operation. Punching can be restarted
when the punch waste has been disposed of and the waste container has
been set in place.