Controlling The Duplexing Feeder Motor (M12) - Canon ImageRunner iR8500 Series Service Manual

Item
Error detection
DC controller
PCB
(IC13)

9.8.8 Controlling the duplexing feeder motor (M12)

iR105i/iR105+ / iR9070 / iR85+ / iR8070
Table shows the functions of the duplexing feeder motor control circuit, and Figure is a block diagram of the circuit.
Item
Power supply
Drive signal
Operating/drive
assembly
Control
Error detection
Description
No error code; however, if a fault in the drive of the motor, a jam will
occur.
When the M11 drive signal goes '1',
the pickup motor starts to rotate.
When the M11 drive signal goes '0',
the pickup motor stops.
J519
DUPI-OFF
A8
DUPI-B
A7
CPU
DUPI-A
A6
A5
Phase A excitation control signal
Phase B excitation control signal
Description
24 V is supplied by the no-stacking feeding driver PCB.
Signal (DUPF_OFF) from the DC controller PCB.
See Figure.
ON/OFF control
Rotation control
No error code; however, a fault in the motor drive will cause a jam.
No-stacking feeding
driver PCB
+24V
J3602
Interface
A5
circuit
Interface
Motor
A6
circuit
driver
(IC1)
Interface
A7
circuit
A8
F-9-48
T-9-32
+24V
J3603
A
A9
M11
A11
A*
A8
B
A7
A10
B*
A6
Chapter 9
0007-0498
9-41