Canon DADF-J1 Service Manual page 99

CHAPTER 2 OPERATIONS AND TIMING
Jam code
DADF Copier
J-22 0022
J-23 0023
J-2A 002A
(1st original)
J-24 0024
J-2B 002B
(1st original)
J-25 0025
J-2C 002C
(1st original)
J-26 0026
002D
J-2D
(1st original)
J-27 0027
J-3A 003A
(1st original)
J-31 0031
J-3B 003B
(1st original)
J-32 0032
2-76
Jam type Related
sensor
Separation delay S4
Pickup delay S4
S2
Pickup leading S4
edge skew S5
Pre-reversal delay S3
1
Pre-reversal delay S3
2 S1
Pre-reversal delay PI4
3
Pickup stationary S3
1
Pickup stationary S2
2
T02-301-02
COPYRIGHT © 2001 CANON INC.
Conditions of detection
At time of operation, the separation sensor
does not detect an original although an origi-
nal is assumed to have been moved over a
specific length (171 mm). (2nd original and
later)
At time of separation, the pre-registration
roller paper sensor does not detect an origi-
nal although an original is assumed to have
been moved over a specific distance (about
93 mm) after the separation sensor has de-
tected the leading edge of an original
At time of separation, the discrepancy in
timing of detection of the training edge of an
original between the separation sensor and
the skew sensor is 25 mm or more in terms
of feed length.
At time of pre-reversal, the post-registration
roller sensor does not detect an original after
the reversal motor (M1) has been driven for
an equivalent of 50 mm.
At time of pre-reversal, the reversal sensor
does not detect an original although an origi-
nal is assumed to have been moved over a
specific distance (100 mm) after the post-
registration roller sensor has detected its
leading edge.
At time of pre-reversal, the pre-reversal sen-
sor does not detect an original after the re-
versal motor (M1) has stopped.
At time of pickup, the post-registration roller
sensor does not detect an original although
an original is assumed to have been moved
40 mm after the reversal motor has been
started.
At time of pickup, the pre-registration roller
paper sensor remains on although an original
is assumed to have been moved over a spe-
cific distance (330 mm for small-size, 660
mm for large-size) after the reversal motor
(M1) has been started.
2000 2000 2000 2000 CANON DADF-J1 REV.0 MAR.2001