Controlling The Duplexing Feeder Motor (M12); Outline - Canon ImageRunner 600 Service Manual

CHAPTER 7 PICK-UP/FEEDING SYSTEM
D.

Controlling the Duplexing Feeder Motor (M12)

1.

Outline

Table 7-402 shows the functions of the duplexing feeder motor control circuit, and Figure 7-
405 is a block diagram of the circuit.
Item
Power supply 24 V is supplied by the no-stacking feeding driver PCB.
Signal (DUPF_OFF) from the DC controller PCB.
Drive signal
See Figure 7-401.
Operating/drive
assembly
Control ON/OFF control
Rotation control
Error detection No error code; however, a fault in the motor drive will cause a jam.
DC controller
PCB
J519
A4
CPU A3
(IC13)
A2
A1
Phase-B excitation control signal
7-26
COPYRIGHT © 1999 CANON INC.
Table 7-402
When the M12 drive signal goes '1',
the pickup motor starts to rotate.
When the M15 drive signal goes '0',
the pickup motor stops.
No-stacking feeding
driver PCB
J3602
DUPF-OFF
A9
DUPF-B
A10
DUPF-A
A11
A12
Phase-A excitation control signal
Figure 7-405
Description
+24V
Interface
circuit
Interface
Motor
circuit
driver
(IC3)
Interface
circuit
CANON imageRUNNER 600 REV.1 JAN. 2000 PRINTED IN U.S.A.
+24V
J3603
A
A4
A*
A3
B
A2
A5
B*
A1
M12