Document transport and detection apparatus

Details Document transport and detection apparatus Document transport and detection apparatus

1990-03-16

1992-05-05

Skaggs, H. Grant

Sheet feeding or delivering

Feeding

By means to convey sheet

271272, 198624, 198781, B65H 702

Patent

active

051101157

ABSTRACT:
An apparatus for moving a document 10 along a track 12 comprises conductive driven members 16 and idler member 18 together with circuit 54 for detecting electrical continuity there-between. Presence of an insulating document 10 between the members 16, 18 breaks an electrical circuit. The driven member 16 has a motor 36 controlled by a motor control switch 38b which can receive a control signal 40 to switch the motor on and another control signal 42 to switch the motor off. Space along a track, drive sets 14 cooperate to move a document along the track 12 with only 2 drive sets switched on at any time and without need for central control.

REFERENCES:
patent: 3609735 (1971-10-01), Dauterman et al.
patent: 3868666 (1975-02-01), Hartwig et al.
patent: 4243216 (1981-01-01), Mazumder
patent: 4548394 (1985-10-01), Koyama et al.
patent: 4558373 (1985-12-01), Plasencia et al.
patent: 4563633 (1986-01-01), Johnson et al.

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