Copying machine provided with an image reading apparatus for sca

Details Copying machine provided with an image reading apparatus for sca Copying machine provided with an image reading apparatus for sca

1997-05-16

2000-06-27

Beatty, Robert

Electrophotography

Document handling

Original

399370, 358300, 358444, G03G 1500

Patent

active

060816872

ABSTRACT:
An inverting document feeder feeds a document from the document tray to the position where the image reader reads the document, turns the document over, and then reads the second side. Document size determination sensors detects the document passing through, and determines the size of the document from detections signals of the width of the document and the time elapsed between the detection of the top end of the document and the detection of the bottom end of the document. When the top end of the document reaches the document reading position, image reading is started by a scanner, regardless of whether the document size has been determined or not. The image data thus obtained are written into and read out of a memory unit in a specified order. Even if the document reading has not been finished at the time of determining the document size, feeding of a copying sheet of a size corresponding to the document size is started, and the image data stored in the memory unit are read out to form an image on the copying sheet.

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