Canon ImageRunner iR8500 Series Service Manual page 880

Chapter 17
Address
P023
P024
P025
P026
P027
17-36
Bit Description
0 not used
1 not used
2 right deck lifter
3 left deck lifter
4 cassette 3 lifter
5 cassette 4 lifter
6 not used
7 not used
0 not used
1 not used
2 not used
3 not used
4 not used
5 not used
6 not used
7 not used
0 not used
1 not used
2 relay ON signal state detection
3 not used
4 not used
5 not used
6 not used
7 horizontal registration sensor
0 Paper Deck LED
1 Paper Deck pickup roller release solenoid
2 Paper Deck drawing clutch
3 Paper Deck pickup clutch
4 Paper Deck pickup motor
5 Paper Deck lifter motor
6 Paper Deck lifter motor up/down
7 Paper Deck open solenoid
8 Paper Deck chip select
9 Paper Deck latch IC control
10 Paper Deck sensor switch-over
11 Paper Deck sensor LED
12 Paper Deck speed switch-over 1
13 Paper Deck speed switch-over 2
14 not used
0 Paper Deck open switch
1 Paper Deck paper present
2 Paper Deck pickup position sensor
3 Paper Deck pickup sensor ON
4 Paper Deck draw sensor ON
5 Paper Deck feed solenoid ON
6 Paper Deck motor lock detection
7 Paper Deck paper supply position sensor
8 Paper Deck paper level detection
9 Paper Deck lifter lower limit detection
10 Paper Deck connection to copier detection
11 Paper Deck closed
12 Paper Deck lifter motor overcurrent detection
13 not used
14 Paper Deck connection detection
15 Paper Deck connection detection
Notation Remarks
PS21 0:paper present
1:paper absent
PS31 0:paper present
1:paper absent
PS38 0:paper present
1:paper absent
PS43 0:paper present
1:paper absent
L: relay ON, H: relay
OFF
H: detected
(H: CL, etc., L:
sensor)
(ON only at power-
on)
(L: pickup, H: draw)
(H: forced OFF, L:
ON)
L: OPEN
H: present
H: ON
H: ON
H: ON
H: ON
H: detected
H: ON
H: detected
H: detected
H: set
H: closed
H: detected
(H: detected)
(L: detected)