Canon FINISJER-E1 Service Manual page 74

CHAPTER 2 BASIC OPERATION
5. Controlling the Tray Lift Motor
a. Outline
Figure 2-608 is a block diagram showing the tray lift motor (M5) drive circuit.
The tray lift motor is a DC motor, and the direction of its rotation is switched by signals (Table
2-603) from the finisher controller PCB Q1 (CPU) to the motor drive circuit.
When the stack tray reaches the stack tray upper limit sensor (S13) and the sensor sends signals
(S13D) to Q5, STCTCW2 will be cut off, and the motor stops to rotate clockwise.
Likewise, when the stack tray reaches the stack tray lower limit sensor (S12) and the sensor
sends signals (S12D) to Q5, STCTCCW2 will be cut off, and the motor stops to rotate
counterclockwise.
Finisher controller PCB
Q1
(CPU)
S12
Stack tray
lower limit sensor
S13
Upper limit sensor
2-52
STKTCW
Q5
STKTCCW2
S12D
Q5
STKTCW2
S13D
STKTCCW
Figure 2-608
Direction
Clockwise
Counterclockwise
COPYRIGHT © 1999 CANON INC.
24VP
Q30 Q31
Q32 Q33
Output signal
STKTCW/STKTCW2
STKTCCW/STKTCCW2
Table 2-603
CANON FINISHER-E1 REV.0 JAN. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
Stack tray
lifter motor
J3-1
M5
-2