Canon iR8500 Service Manual page 473

CHAPTER 6 TROUBLESHOOTING
Sensor
PS39
Cassette 3 paper
sensor
PS40
Cassette 3 open/
closed sensor
PS41
Vertical path 3
sensor
PS42
Cassette 4 pickup
sensor
PS43
Cassette 4 lifter
sensor
PS44
Cassette 4 paper
sensor
PS45
Cassette 4 open/
closed sensor
PS46
Vertical path 4
sensor
PS47
Vertical path 1
paper sensor
PS48
Right lower cover
open/closed sensor
6-70
Connector
I/O address
J515-A9 In standby, move the de-
P004-10 tecting lever by hand
J515-B5 In standby, move the de-
P004-6 tecting lever by hand
J151-B8 In standby, move the de-
P001-6 tecting lever by hand
J517-B2 In standby, move the de-
P001-3 tecting lever by hand
J517-A6 In standby, move the de-
P004-3 tecting lever by hand.
J517-A9 In standby, move the de-
P004-11 tecting lever by hand.
J517-B5 In standby, move the de-
P004-7 tecting lever by hand.
J517-B8 In standby, move the de-
P001-7 tecting lever by hand.
J502-B5 In standby, move the de-
P001-4 tecting lever by hand.
J516-A2 In standby, move the de-
P005-9 tecting lever by hand.
COPYRIGHT© 2001 CANON INC.
Checks
T06-210-04
2000 2000 2000 2000
When the light-block-
ing plate is at PS39,
When the light-block-
ing plate is not at PS39,
When the light-block-
ing plate is at PS40,
When the light-block-
ing plate is not at PS40,
When the light-block-
ing plate is at PS41,
When the light-block-
ing plate is not at PS41,
When the light-block-
ing plate is at PS42,
When the light-block-
ing plate is not at PS42,
When the light-block-
ing plate is at PS43.
When the light-block-
ing plate is not at PS43.
When the light-block-
ing plate is at PS44.
When the light-block-
ing plate is not at PS44.
When the light-block-
ing plate is at PS45.
When the light-block-
ing plate is not at PS45.
When the light-block-
ing plate is at PS46.
When the light-block-
ing plate is not at PS46.
When the light-block-
ing plate is at PS47.
When the light-block-
ing plate is not at PS47.
When the light-block-
ing plate is at PS48.
When the light-block-
ing plate is not at PS48.
CANON iR8500/7200 REV.1 AUG. 2001
Vol-
I/O
tage
−
5 V
−
0 V
1 5 V
0 0 V
1 5 V
0 0 V
1 5 V
0 0 V
1 5 V
0 0 V
1 5 V
0 0 V
1 5 V
0 0 V
1 5 V
0 0 V
1 5 V
0
0 V
1 5 V
0 0 V