Canon NP6251 Service Manual page 593

CHAPTER 11 TROUBLESHOOTING
Sensor
PS49
Left deck outlet
paper sensor
PS50
Cassette 3
open/closed
sensor
PS51
Cassette 4
open/closed
sensor
PS52
Claw jam sensor
PS53
Fixing/feeding
assembly unit
sensor
* Or, tape the detecting lever in place, and push in the fixing/feeding unit, holding tray,
or holding tray feeding assembly into the machine.
** Or, put copy paper over the sensor to keep the light-receiving area from light.
11-62
COPYRIGHT © 1997 CANON INC.
Connector No.
*2* address
J121B-5 Move the
detecting
P009-04
lever by
hand while
in standby.
J117B-7 Hold the
grip and
P009-05
move the
cassette 3.
J130B-7 Hold the
grip and
P009-06
move the
cassette 4.
J108A-19 Move the
detecting
P009-01
lever while
in standby.*
J108A-2 Move the
releasing
P005-01
lever of the
fixing/feed-
ing assem-
bly by hand
while in
standby.
Checks
When the light-
blocking plate is at
PS49.
When the light-
blocking plate is
not at PS49.
When the light-
blocking plate is at
PS50.
When the light-
blocking plate is
not at PS50.
When the light-
blocking plate is at
PS51.
When the light-
blocking plate is
not at PS51.
When the light-
blocking plate is at
PS52.
When the light-
blocking plate is
not at PS52.
When the light-
blocking plate is at
PS53.
When the light-
blocking plate is
not at PS53. (unit
set)
CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
*2*
Voltage
notation
1 5V
0 0V
5V
1
0 0V
1 5V
0 0V
1 5V
0 0V
0 0V
1 5V