Canon DADF-R1 Service Manual page 89

6) The machine moves the 1st and 2nd originals using the transport belt; rotating it over a specific distance after
the trail edge of the 2nd original has moved past the pre-registration roller paper sensor (S2) to determine the
stop position for the 2nd original.
The machine moves the 1st original in the direction of delivery, stopping it on the copyboard glass.
Pre-registration roller
paper sensor(S2)
In the case of a large-size original, the machine controls the distance between sheets so that only a single original
is on the copyboard glass at a time in step 6.
B. Sequence of Operation (single-sided original)
A4 Single-Sided Originals; Fixed Reading
COPY
Start key ON
separates
1st original
Original sensor (S6)
Pickup roller home
position sensor (PI 7)
Pickup roller height
sensor 1/2 (PI 8/9)
Stopper plate
solenoid (SL2)
DOWN
Pickup motor (M3)
Separation
clutch (CL)
Separation
motor (M4)
Reversal motor (M1)
Belt motor (M2)
Delivery motor (M5)
: motor reverse rotation
2nd original
moves 1st original in
reads 1st original delivery direction
separates 2nd original reads 2nd original
separates 3rd original
UP DOWN UP DOWN
1st original
F-3-40
delivers 1st original
moves 2nd original in
delivery direction
reads 3rd direction
UP
F-3-41
Chapter 3
delivers 2nd original
moves 3rd original in
delivery direction
delivers 3rd
original
UP
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