Original Size Detection - Gestetner A294 Service Manual

2.1.5 ORIGINAL SIZE DETECTION

[G]
[F]
[A]
B301D104.WMF
The DF detects the original size by combining the readings of original length
sensor [A], and original width sensors-1 [B], -2 [C], and -3 [D].
Original Length
The original length sensor and the disk [E] (connected to the transport roller)
generate a pulse signal. The CPU counts pulses, starting when the leading edge of
the original turns on the registration sensor [F], until the trailing edge of the original
turns off the entrance sensor [G].
Original Width
The CPU detects original width using three original width sensors -1, -2, -3 as
shown above. Three small circles on the diagram indicate the positions of the
sensors.
SM
CÓPIA NÃO CONTROLADA
[B]
[C]
[D]
[E]
2-5
CÓPIA NÃO CONTROLADA
DOCUMENT FEEDER
B301D503.WMF
A294/A295