Canon F-1, Service Manual

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Technology > Controls > DADF > Jam Detection
Technology > Controls > DADF > Jam Detection
● Jam Type
Feed type
Occurrence
Section
Jam
code
Sensor name
Sensor
number
Jam type
Delay Stationary Residue
01
0001
Post-separation sensor 3 PCB2
Yes - -
0002 - Yes -
0042 - Yes -
0003
Delay detection sensor SR4
Yes - -
0043 Yes - -
0004 - Yes -
0044 - Yes -
0005
Registration sensor PCB3
Yes - -
0045 Yes - -
0006 - Yes -
0046 - Yes -
0007
Lead sensor 1 PCB4
Yes - -
0047 Yes - -
0008 - Yes -
0048 - Yes -
0009
Lead sensor 2 SR5
Yes - -
0049 Yes - -
0010 - Yes -
0050 - Yes -
0011
Delivery sensor PCB5
Yes - -
0051 Yes - -
0012 - Yes -
0052 - Yes -
0094 All feed type sensor - - - Yes
T-2-26
Others
Occurrence
Section
Jam
Code
Jam type Sensor name Sensor number
01
0090 DADF open
DADF open/closed
sensor 1/2
(reader: SR1, SR3)
0091 DADF user open
0092 Cover open
Cover open/closed
sensor
SR10
0093 Cover user open
0095 Pickup error
Post-separation sensor
1/2/3
SR2, SR3, PCB2
0071 Software timing error - -
0073
Lead roller 1
disengaging error
Disengaging HP
sensor 1
SR15
0074
Lead roller 2
disengaging error
Disengaging HP
sensor 2
SR16
0075
Pickup roller unit up/
down error
Pickup roller unit lifter
HP sensor
SR12
Note: Additional functions (Feeder Jam Recovery Method)
Recovery method can be specified in the case of jam in stream scanning mode of
original.
Setting method is available as below.
• From 1st Page: Reset all of originals to the original pickup tray after jam recovery. Once
the start key is pressed, the scanned originals up to the jam occurrence are fed idly and
the rest of the originals are to be scanned (default).
• From Stop. Original: Reset just the rest of originals which haven’t been scanned to the
original pickup tray. Once the start key is pressed, the rest of the originals are to be
scanned.
This equipment can perform the stream scanning with up to 300 sheets (80 g/m2).
However, for example, if a jam occurred at the 299th sheet while executing stream
scanning of 300 sheets of original, and starting from the 1st original sheet, it takes 2
min or more for idle-feeding. Then jam recovery time can be reduced by resuming from
the rest of the originals.
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