COPYRIGHT © 1999 CANON INC.
CANON ADF FOR iR600 REV.0 JAN. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
2-35
CHAPTER 2 OPERATIONS
Table 2-213
2.
Controlling the Belt Motor (M2)
Figure 2-230 shows the circuit to control the belt motor (M2). The belt motor is a 4-phase stepping
motor, and the circuit has the following functions:
Turning on and off the motor.
Controlling the direction of motor rotation.
Controlling the speed of motor rotation.
Figure 2-230
The CPU (Q1) on the ADF controller PCB sends the appropriate motor control signal to the belt
motor driver PCB. The belt motor driver PCB, in response, controls each specific motor according to the
signal.
Signal
REF-CLK
MO1
MO2
CW/CCW
B-Vref
BTCLK
Description
Serves as reference clock pulses.
Sets motor operation mode.
Sets motor operation mode.
Sets direction of rotation.
Sets motor torque.
Monitors motor operation, Sets belt stop position.
Related Error Code
• Error in the belt motor (M2)
• Error in the belt motor clock sensor (PI1)
• Error in the ADF controller PCB
E402
Q1
CPU
ADF controller PCB
Belt motor driver
PCB
Q601
+24R
+24R
A
A*
B
B*
M2
+5R
REF-CLK
MO1
MO2
CW/CCW
B-Vref
J72
J71
J7
PI 1
J12
BTCLK
9
14
13
12
11
10
6
5
4
8
7
3
2
1
6
1
2
3
4
5
9
10
11
7
8
12
13
14
3
3
1
4
5
2
6