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12 February 1992
ORIGINAL FEED
6.4 ORIGINAL SIZE DETECTION
[C]
[B]
[A]
The DF determines original size (both width and length) through the use of
the original width sensor [A, rear of DF], registration sensor [A, center of DF],
and pulse generator sensor [B]. The original's length is calculated by
counting the number of pulses from the pulse generator [C] while the
registration sensor is on.
The original width sensor is turned on when the original width is 204 mm (8")
or more. It is in the same position (front to back) as the original width sensor
in the copier.
Original size detection is necessary for APS, AMS and the feed-in/feed-out
timing of the DF.
11
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