Canon ImageRunner iR8500 Series, Service Manual, Page: 444 / 1122

Chapter 9
9-40
9.8.5 Sequence of Operations
0007-0472
iR105i/iR105+ / iR9070 / iR8070
F-9-46
9.8.6 Sequence of Operations
0008-8991
iR85+
F-9-47
9.8.7 Controlling the reversal motor (M11)
0007-0474
iR105i/iR105+ / iR9070 / iR85+ / iR8070
Table shows the function of the reversal motor control circuit, and Figure is a block diagram of the circuit.
T-9-31
Item Description
Power supply Supplies 24 V from the no-stacking feeder driver PCB.
Drive signal Signal (DUPI_OFF) from the DC controller PCB.
Operating/drive
assembly See Figure.
Control ON/OFF control
Direction control
Copy Start key ON or print count set
Original set in ADF
Copying on face of 1st sheet
Copying on face of 2nd sheet Coping on back of 1st sheet
Copying on back of 2nd sheet
Pickup motor (M 2)
Internal paper sensor (PS 9)
Flapper solenoid (SL 3)
Duplexing reversal motor
(M 11)
Duplexing feeder motor
(M 12)
Lower feeding middle clutch
(CL 16)
Lower feeding right clutch
(CL 17)
Post-confluence paper
sensor (PS 15)
Pre-confluence paper sensor
(PS 14)
U-turn sensor (PS 13)
Duplexing reversal paper
sensor (PS 12)
Fixing outlet paper sensor
(PS 11)
Reversal paper sensor
(PS 1)
Reversal guide solenoid
(SL 11)
A4, 4 Originals, Double-Sided Copies
Dawn-in Push out
Draw in Push out
660mm/s 300mm/s 660mm/s 300mm/s
Print command
Printing on face of 1st sheet
Printing on face of 2nd sheet Printing on back of 1st sheet
Printing on back of 2nd sheet
Pickup motor (M 2)
Internal paper sensor (PS 9)
Flapper solenoid (SL 3)
Duplexing reversal motor
(M 11)
Duplexing feeder motor
(M 12)
Lower feeding middle clutch
(CL 16)
Lower feeding right clutch
(CL 17)
Post-confluence paper
sensor (PS 15)
Pre-confluence paper sensor
(PS 14)
U-turn sensor (PS 13)
Duplexing reversal paper
sensor (PS 12)
Fixing outlet paper sensor
(PS 11)
Reversal paper sensor
(PS 1)
Reversal guide solenoid
(SL 11)
A4, 2, Double-Sided Prints
Dawn-in
Push out
Draw in Push out
660mm/s 300mm/s 660mm/s 300mm/s