Canon iR8500 Service Manual page 470

Sensor
PS1 (iR8500)
Scanner HP sensor
PS3 (iR8500)
Image leading edge
sensor
PS4 (iR8500)
Copyboard cover
open/closed sensor
PS5
Registration paper
sensor
PS6
Fixing claw jam
sensor
PS7
Fixing web length
sensor
PS8
Fixing web length
warning sensor
PS9
Inside delivery
sensor
PS10
Outside delivery
sensor
PS11
Fixing/feeding unit
outlet sensor
PS12
Duplexing reversal
sensor
PS13
U-turn sensor
PS14
Pre-confluence
sensor
COPYRIGHT© 2001 CANON INC.
Connector
I/O address
J1110-A1 In standby, move the scan-
– ner by hand.
J1110-A4 In standby, move the scan-
– ner by hand.
J1110-B9 In standby, move the
P001-4 copyboard cover by hand.
J509-A2 In standby, put paper over
P001-11 PS5.
J508-B15 In standby, put paper over
P001-15 PS6.
J508-B2 In standby, put paper over
P003-3 PS7.
J508-B5 In standby, put paper over
P003-4 the detecting lever of PS8.
J508-A2 In standby, put paper over
P001-12 the detecting lever of PS9.
J180L-A8 In standby, put paper over
P001-13 the detecting lever of PS10.
J508-A11 In standby, put paper over
P001-14 the detecting lever of PS11.
J519-B6 In standby, put paper over
P002-1 the detecting lever of PS12.
J519-B7 In standby, put paper over
P002-2 the detecting lever of PS13.
J519-B8 In standby, put paper over
P001-3 the detecting lever of PS14.
2000 2000 2000 2000
CHAPTER 6 TROUBLESHOOTING
Checks
T06-210-01
CANON iR8500/7200 REV.1 AUG. 2001
When the light-block-
ing plate is at PS1,
When the light-block-
ing plate is not at PS1,
When the light-block-
ing plate is at PS3,
When the light-block-
ing plate is not at PS3,
When the cover is
closed,
When the cover is
opened,
When paper is not at
PS5,
When paper is at PS5,
When paper is not at
PS6,
When paper is at PS6,
When the web is
present,
When the web is ab-
sent,
When the No Web
warning is issued,
When the No Web
warning is not issued,
When paper is put,
When paper is pulled,
When paper is put,
When paper is pulled,
When paper is put,
When paper is pulled,
When paper is put,
When paper is pulled,
When paper is put,
When paper is pulled,
When paper is put,
When paper is not
put,
Vol-
I/O
tage
1 5 V
0 0 V
1 5 V
0 0 V
1 5 V
0 0 V
1 5 V
0 0 V
0 0 V
1 5 V
0 0 V
1 5 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
0 0 V
1 5 V
1 5 V
0 0 V
1 5 V
0 0 V
6-67