Canon iR7086 Series Service Manual page 608

Chapter 17
shading RAM chip select
Address
P001
P002
P003
P004
P005
P006
P007
17-20
Bit
0 reader heat discharge fan 1 stop detection
1 reader heat discharge fan 1
2 reader heat discharge fan 2 stop detection
3 reader heat discharge fan 2
4 not used
5 DDI-S command signal
6 DDI-S command signal
7 DDI-S command signal
0 xenon lamp control signal
1 power supply monitor (24V system)
2 power supply monitor (13V system)
3 not used
4 scanner motor control signal
5 sub scanning detection signal
6 sub scanning detection signal
7 main scanning detection signal
0 DDI-S command signal
1 ADF serial communication (TxD)
2 DDI-S command signal
3 ADF serial communication (RxD)
4 start-up check LED
5 DDI-S command signal
6 not used
7 not used
0 DDI-S command signal
1 DDI-S command signal
2 reader start-up signal
3 CPU operation mode setup
4 not used
5 not used
6 scanner motor reference voltage
7 not used
0 PC I/F
1 PC I/F
2 DDI-S command signal
3 DDI-S command signal
4 not used
5 not used
6 not used
7 not used
0 not used
1 for factory mode
2 original size detection control signal
3 main scanning detection signal
4 image lead edge signal
5 scanner home position signal
6 not used
7 copyboard closed detection signal
0 address bus
1 address bus
2 address bus
3 not used
4 download start
5 ADF reset signal
6 ADF mode setup
7 DDI-S command signal
T-17-11
Description Remarks
1: off
1: ON
1: off
1: ON
0: ON
1: 24V
1: 13V
1: ON
0: ON
0: ON
0: ON
1: ON
0: ON
0: ON
0: HPdetected
0: closed