Controlling The Main Motor (M1) - Canon ImageRunner iR8500 Series Service Manual

To ADF
To finisher
(accessory)
To paper
deck
(accessory)

3.1.20 Controlling the Main Motor (M1)

iR105i/iR105+ / iR9070 / iR85+ / iR8070
Table shows the functions of the main motor control circuit, and Figure is a block diagram of the circuit.
Item
Power supply
Drive signal
Operating/drive
assembly
Control
Error detection
J172-7
J172-6
J172-5
J172-4
J172-3
J172-2
J172-1
1
J23-1
J23-2 2
ADF connector of
the copier's back
J151-5
J151-4
J151-3
J151-2
J151-1
J48-2
J48-1
Finisher connector
of the copier's back
J152B-7
J152B-6
J152B-5
J152B-4
J152B-3
J152B-2
J152B-1
J152C-4
-1
J152C-3 -2
J152C-2 -3
Paper deck connector
on the copier's back
Description
38 V from the relay PCB.
Signals (MAIN_MOTOR_ON) from the DC controller PCB.
Waste toner feeding screw
Cleaner assembly
Feeding belt
Internal delivery roller
External delivery roller
Reversing roller
Separation claw (reciprocating operation)
Developing assembly unit (through CL10)
ON/OFF control
Constant speed control
Error code E010
DC controller PC
J507
-B1
-B2
-B3
-B4
-B5
-B6
-B7
+24V
J172-1
-2
Relay PCB
J505
-A1
-A2
-A3
-A4
-A5
+24V
J1723-8
-9
Relay PCB
J512
-A1
-A2
-A3
-A4
-A5
-A6
-A7
+38V
J172-3
-2 +24V
-1
Relay PCB
F-3-19
T-3-1
Chapter 3
0006-9352
3-19