Canon ImageRunner iR8500 Series Service Manual page 899

Address Bit Description
P023 0 fold feed motor ON
1 folder inlet solenoid ON
2 decompression solenoid ON
3 B4 fold No. 2 stopper solenoid ON
4 locking solenoid ON
5 B4 fold No. 1 stopper solenoid ON
6 fold path residual paper detection 2
7 fold path residual paper detection 3
P024 0 address bus 8
1 address bus 9
2 address bus 10
3 punch 2/3-hole detection
4 punch motor home position detection
5 sample tray position detection 1
6 sample tray position detection 2
7 sample tray position detection 3
P025 0 tray B lift motor A
1 tray B lift motor B
2 tray B lift motor A*
3 tary B lift motor B*
4 tray A lift motor A
5 tray A lift motor B
6 tray A lift motor A*
7 tray A lift motor B*
P026 0 stack tray position detection 1
1 stack tray position detection 2
2 stack tray position detection 3
3 stapler home position detection
4 not used
5 not used
6 not used
7 not used
P027 0 salve busy R
1 stapler shift home position detection
2 punch home position detection
3 not used
4 not used
5 not used
6 not used
7 paper edge sensor slide home position detection
P028 0 waste detection sensor
1 lower path sensor adjustment
2 tray A sensor
3 tray B sensor
4 not used
5 not used
6 punch feed path detection
7 buffer path sensor
P029 0 punch paper edge detection 1
1 punch paper edge detection 2
2 tray B idle rotation detection
3 tray A idle rotation detection
4 punch position detection
5 not used
6 not used
7 not used
Notation Remarks
1: ON
1: ON
1: ON
SL72 1: ON
1: ON
SL75 1: ON
PI77 1: paper present
PI74 1: paper present
PI33 1: 3-hole, 0: 2-hole
PI22 1: HP
1: light-block
1: light-block
1: light-block
M12
M12
M12
M12
M13
M13
M13
M13
1: light-block
1: light-block
1: light-block
0: HP
0: busy
PI16 1: HP
PI24
PI23 1: HP
0: paper waste absent,
1: paper waste present
1: normal, 0: error
S5 1: absent, 0: present
S4 1: absent, 0: present
S1 1: absent, 0: present
PI3
PI21
PI21 1: absent, 0: present
PI18 idle rotation
repeatedly 0 and 1
PI19 idle rotation
repeatedly 0 and 1
PI25 1: rear, 0: front
Chapter 17
17-55