Canon DU7-1101-000 Service Manual page 90

CHAPTER 2 OPERATIONS
Jam code
Machine Copier
J-16 0016 Reversal pickup fault
J-19 0019 Original over sensor
J-22 0022 Separation delay
J-23 0023 Pickup delay
J-24 0024 Pickup leading edge
skew
J-25 0025 Pre-reversal delay
J-31 0031 Pickup stationary
2-74
COPYRIGHT © 1999 CANON INC.
Jam type Sensor
PI 4
S1
S4
S4
S2
S4
S5
S3
S3
S1
PI 4
S3
S2
Table 2-301-2
CANON ADF FOR iR600 REV.0 JAN. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
Conditions
When reversing an original, the pre-reversal
sensor detected the original after moving the
original for a specific length.
Before picking up an original, the reversal sensor
detected an original when the belt motor had been
operated for a specific time.
When performing separation, the separation
sensor did not detect an original when the original
had been moved for a specific distance (171
mm). (2nd and subsequent sheets)
When performing separation, the pre-registration
roller did not detect an original even though the
separation sensor had detected the leading edge
of an original and the original had been moved for
a specific length (about 93 mm).
When performing separation, the discrepancy in
timing between when the separation sensor
detected the leading edge of an original and the
skew sensor detected it was 25 mm or more in
terms of feeding length.
When performing pre-reversal, the post-
registration roller sensor did not detect an original
after the reversal motor (M1) had been operated
for 50 mm in terms of feeding length.
When performing pre-reversal, the reversal
sensor does not detect an original after the post-
registration roller paper sensor had detected the
leading edge of an original and the original had
been fed for a specific length (100 mm).
While performing pre-reversal, the pre-reversal
sensor did not detect an original after the reversal
motor (M1) had been stopped.
When picking up an original, the post-registration
sensor did not detect paper after the reversal
motor had been operated for 40 mm in terms of
feeding length.
When picking up an original, the pre-registration
roller paper sensor still detected an original after
the reversal motor (M1) has been driven and the
original had been moved for a specific length (330
mm for small; 660 mm for large).