Canon 1000 Service Manual page 486

7. TROUBLESHOOTING IMAGE FAULTS/MALFUNCTIONS
Sensor Name
Cassette 1
paper sensor
PS 23
Cassette 1 lifter
sensor
PS 24
Pick-up vertical
path 2 sensor
PS 25
Pick-up vertical
path 3 sensor
PS 26
Cassette 2 lifter
sensor
PS 27
Cassette 2
paper sensor
PS 28
Duplexing unit
stacking
guidehome
PS 29
position sensor
Holding tray
paper sensor 1
PS 30
Holding tray
paper sensor 2
PS 31
Delivery vertical
PS 32 path sensor 2
7-50
COPYRIGHT © 2001 CANON INC.
Meter probe (+)
Service mode
J2222B-7
801004 bit 0
J2222B-8
801005 bit 4
J2222B-9
801000 bit 2
J2222B-12
801000 bit 3
J2222B-10
801004 bit 1
J2222B-11
801005 bit 5
J2224B-8
801004 bit 6
J2224A-5
801002 bit 0
J2224A-8
801005 bit 7
J2211A-9
801001 bit 4
CANON CLC1000/1000S/3100 REV.2 MAY 2001 PRINTED IN JAPAN (IMPRIME AU JAPON)
Checks
During standby, slide out the cassette 1.
• '1' when the cassette is slid in with paper.
• '0' when the cassette is slid in without paper.
During standby, slide out the cassette 1.
• '1' when the cassette is slid out.
• '0' when the cassette is slid in.
• '1' when paper is present over the pick-up
vertical path 2 sensor.
• '0' when absent.
• '1' when paper is present over the pick-up
vertical path 3 sensor.
• '0' when absent.
During standby,
• '1' when the cassette 2 is slid out.
• '0' when the cassette 2 is slid in.
During standby,
• '1' when the cassette 2 is slid in with paper.
• '0' when the cassette 2 is slid in without paper.
During standby, slide out the duplexing unit, and
remove the front cover.
• '1' when the duplexing unit is slid in and the
light-blocking plate is over the sensor.
• '0' otherwise.
During standby,
• '0' when paper is put over the holding tray
paper sensor 1.
• '1' otherwise.
During standby,
• '0' when paper is put over the holding tray
paper sensor 2.
• '1' otherwise.
• '1' when paper is present over the delivery
vertical path sensor 2.
• '0' when absent.