Canon NP6251 Service Manual page 587

CHAPTER 11 TROUBLESHOOTING
Connector No.
Sensor
*2* address
PS1 J111A-2
Scanner HP P007-03
sensor
PS3 J111A-5
Scanner original P107-6
leading edge 2
sensor
PS4 J111A-8
Scanner original P002-04
leading edge 2
sensor
PS5 J112A-4
Copyboard cover P007-02
open/closed
sensor
J110A-8
PS6
P102-02
Lens XHP sensor
PS7 J110B-2
Lens YHP sensor P102-03
PS8 J119A-4
Holding tray P002-04
feeding assembly
1 paper sensor
PS9
J113B-12
Holding tray
P002-03
feeding assembly
2 paper sensor
11-56
COPYRIGHT © 1997 CANON INC.
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Checks
Move the When the light-block-
scanner by ing plate is at PS1.
hand while
When the light-block-
in standby.
ing plate is not at PS1.
Move the When the light-block-
scanner by ing plate is at PS3.
hand while
When the light-block-
in standby.
ing plate is not at PS3.
Move the When the light-block-
scanner by ing plate is at PS4.
hand while
When the light-block-
in standby.
ing plate is not at PS4.
Move the When the cover is
copyboard closed.
cover by
When the cover is
hand while
opened.
in standby.
When paper is not
Put paper
over PS6.
over PS6
while in
When paper is over
standby.
PS6.
When paper is not
Put paper
over PS7.
over PS7
while in
When paper is over
standby.
PS7.
When paper is
Insert paper
inserted.
in the
detecting
When paper is
lever
removed.
assembly of
PS8 while
in standby.
When paper is
Insert paper
inserted.
in the
detecting
When paper is
lever
removed.
assembly of
PS9 while
in standby.
CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
*2*
Voltage
notation
1 5V
0 0V
0 5V
1 0V
0 0V
1 1V
1 5V
0 0V
0 0V
1 5V
0 0V
1 5V
1 5V
0 0V
1 5V
0 0V