ARDF Operation
Pick-Up and Separation
The ARDF uses an FRR (feed & reverse roller) system.
Setting paper moves the feeler, causing the original set sensor to inform the
CPU that the ARDF is ready to feed.
Press → short time lag → DF feed clutch engages → DF motor starts.
The motor drives the DF pickup roller, DF feed roller, DF separation roller, and
transport roller. The pickup roller drives the top sheet(s) between the feed and
separation roller, where the top sheet is separated and fed to the transport rollers.
Clutch Operation
The DF feed clutch is provided to stop feeding when the original is fed to the inverter tray in double-sided
mode. If the DF feed clutch does not stop the pick-up, feed and separation rollers in double-sided mode,
the next original is fed while the first original is at the inverter tray and an original jam occurs.
Original Transport and Exit
Single-Sided Originals
6. Detailed Section Descriptions
272
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