Controlling The Duplexing Feeder Motor (M12); No-Stacking Operation - Canon imageRUNNER 7095 Service Manual

8.8.5 Controlling the duplexing feeder motor (M12)

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
DC controller PCB
CPU
IC13

8.8.6 No-Stacking Operation

Outline of Operations
For instance, no-stacking operation takes place as follows when making one set of doublesided copies of
10 originals.
1. The 1st sheet is picked up from the deck right.
Description
24 V is supplied by the no-stacking feeding driver PCB.
Signal (DUP_FEED_ON) 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.
J519 J3602
DUP_FEED_PWR
A6 A11
DUP_FEED_ON
A5 A12
DUP_FEED_B
A4 A13
DUP_FEED_A
A3 A14
Phase A excitation control signal
Phase B excitation control signal
T-8-19
Stackless feeding driver PCB
+24V
Interface
A
circuit
Vcc_A
Interface
Motor
circuit
A*
driver
(IC3)
Interface
B
circuit
Vcc_B
B*
Interface
circuit
F-8-33
F-8-34
J3607
6
5 M12
4
3
2
1
Chapter 8
0010-8220
0010-8221
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