Advancing material of indeterminate length – With material-responsive control means – To regulate longitudinal movement of material
Patent
1990-12-20
1993-11-09
Stodola, Daniel P.
Advancing material of indeterminate length
With material-responsive control means
To regulate longitudinal movement of material
226 24, 226 45, 355308, 355316, 400708, B65H 2304
Patent
active
052595447
ABSTRACT:
An automatic document feeder (ADF) for use with an electrophotographic copier, digital copier or similar image recorder for selectively feeding ordinary documents in the form of separate sheets and a continuous document in the form of computer form (CF) paper. Sprocket holes formed through the CF paper are sensed to controllably transport and stop the CF paper on the basis of the number of sensed holes. Even when the sprocket holes are partly deformed or practically lost due to breakage, the positions where they should exist are surely sensed to control the transport and stop of the CF paper. Sensors responsive to the sprocket holes do not have to be shifted in matching relation to the width of CF paper and, therefore, eliminates the need for a complicated structure.
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patent: 4320960 (1982-03-01), Ward et al.
patent: 4462527 (1984-07-01), Taylor et al.
patent: 4485949 (1984-12-01), Gebhart et al.
patent: 4526309 (1985-07-01), Taylor et al.
patent: 4834277 (1989-05-01), Gomoll et al.
Bowen Paul T.
Ricoh & Company, Ltd.
Stodola Daniel P.
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