Photocopying – Contact printing – Light boxes
Patent
1993-07-06
1996-03-26
Braun, Fred L.
Photocopying
Contact printing
Light boxes
G03G 2100, G03G 1500
Patent
active
055025560
ABSTRACT:
An automatic document feeder, for conveying plural documents to an image reading section of a scanner includes; a first conveyer for separately conveying each of the plural documents from a document stack section to the scanner for reading an image on each of the plural documents at the scanner; a second conveyer for conveying the documents from the scanner to document reversing rollers, the document reversing rollers turning over the documents; a third conveyer for conveying the documents from the document reversing rollers to the scanner; and a document discharger for discharging the documents from the scanner to a document stack section of the apparatus. In the operation of the document feeder, while a first document is conveyed and turned over by one of the second conveyer, the document reversing rollers, and the third conveyer after a reading operation of the scanner to read an image on a first surface of the first document, a second document is started to be conveyed by the first conveyer; and when the first document is conveyed to the scanner so that an image on a second surface of the first document is read by the scanner, the second document is conveyed to a waiting position.
REFERENCES:
patent: 4264067 (1981-04-01), Adams et al.
patent: 4264187 (1981-04-01), Rhodes
patent: 4384782 (1983-05-01), Acquaviva
patent: 4456236 (1984-06-01), Buddendeck
patent: 4705389 (1987-11-01), Maekawa et al.
patent: 5258817 (1993-11-01), Acquaviva
patent: 5343281 (1994-08-01), Yamada
Braun Fred L.
Konica Corporation
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