Mailbox or sorter bin use sensing system

Details Mailbox or sorter bin use sensing system Mailbox or sorter bin use sensing system

1993-05-05

1994-07-12

Skaggs, H. Grant

Sheet feeding or delivering

Delivering

Multiple discharge

414274, 250561, 271298, 271176, 209534, B65H 3910

Patent

active

053281691

ABSTRACT:
In a multi-bin sheet collecting system for a reproduction apparatus, in which printed sheets may be directed an array of bins for job separation, sorting, and/or user mailboxing, to stack on a tray in a selected bin, the removal of printed sheet from individual bins is sensed to indicate the availability of those bins for receiving further printed sheets by an integral optical transmitter/receiver unit mounted in an aperture in each bin tray in an area to be overlaid by sheets stacked thereon. Each transmitter/receiver unit has a light transmitting element transmitting a first light beam in a first direction towards another transmitter/receiver unit in the next adjacent bin in the first direction, and a light beam receiving element for receiving a second light beam from a second, opposite direction and generating an electrical bin empty signal to a controller unless the second light beam is blocked by sheets in the tray of the adjacent bin. Where at least some of the bins are locked but individually openable for the removal of the sheets therefrom, the same integral optical transmitter/receiver units can also signal to the controller that their associated individual bin is open, and not reclosed, or not cleared of all sheets.

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