Canon NP6251 Service Manual page 703

CHAPTER 11 TROUBLESHOOTING
RDF Jam Code
RDF-D1
Type
Original left
behind
Original pulled
out
Original pulled S15, S27
out
Lever idle S29, S30
rotation
Left pick-up
trailing edge
skew
Left pick-up
fault
Left pick-up
delay
Registration
delay
Left pick-up
skew
Left pick-up
stationary
Right pick-up
delay
Right registra- S16, S17
tion delay
Right registra- S17, S20
tion delay
Right pick-up
stationary
Right pick-up S15, S16
leading edge
skew
Right pick-up S15, S16
trailing edge
skew
11-172
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Sensor
S5 The belt motor (M3) rotates in reverse. S5 detects
an original.
S1, S2 Pick-up motor (M1) turns on. S2 does not detect an
original for a specific period of time. S1 does not
detect an original.
The pick-up motor (M1) and the pick-up clutch (CL1)
turn on. S15 does not detect an original for a specific
period of time. S27 does not detect an original.
The re-circulating bar swings idly without coming
into contact with an original.
S3, S4 Left pick-up is executed. The original left S3 and S4
with a discrepancy of 8 mm in timing.
S3 Edge feeding is executed. The entire original
leaves S3.
S3 The pick-up motor (M1) turns on. The original is fed for
an equivalent of 500 mm. S3 does not detect the original.
S2, S3 S2 detects an original. The original is fed for an
equivalent of 60 mm. S3 does not detect the original.
S3, S4 Left pick-up is executed. TS3 and S4 detect the
original with a discrepancy of 10 mm in timing.
S3 S3 detects an original for an equivalent of 660 mm
or more.
S15 The pick-up motor (M1) turns on. The original is fed for an
equivalent of 500 mm. S15 does not detect the original.
S16 detects an original. The original is fed for an
equivalent of 160 mm. S17 does not detect the original.
S17 detects an original. The original is fed for an
equivalent of 130 mm. S20 does not detect an original.
S17 S17 detects an original for an equivalent of 266 mm
or more.
Right pick-up is executed. S15 and S16 detect the
original with a discrepancy of 15 mm or more in
timing.
Right pick-up is executed. The original leaves S15
and S16 with a discrepancy of 15 mm or more in
timing.
Table 11-708
CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Chronological sequence Code
19
21
66
03
11
13
22
23
24
31
61
62
63
64
65
71