Scanner Unit
D014/D015/D078/D079 6-16 SM
ARDF Mode
The CPU checks the APS sensors after the platen has been lowered.
By-pass Mode
The APS sensors are ignored when copy paper is fed from the by-pass tray, but the
by-pass tray can handle a variety of sizes and orientations. To accomplish this:
The machine always assumes short-edge feed for paper on the by-pass tray.
Width is measured by a sensor inside the by-pass tray.
The bypass tray cannot measure length, so the registration sensor determines the
length of the paper using clock pulses.
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