Automatic document feeder and image forming apparatus having...

Details Automatic document feeder and image forming apparatus having... Automatic document feeder and image forming apparatus having...

2011-01-25

2011-01-25

Grant, II, Jerome (Department: 2625)

Facsimile and static presentation processing

Facsimile

Picture signal generator

C359S396000, C399S367000

Reexamination Certificate

active

07876479

ABSTRACT:
An automatic document feeder of an image forming apparatus capable of improving a duplex scanning or printing (copying) efficiency includes a single scan path having a document admission passage to admit a document to a document scanning part and a document discharge passage to discharge the scanned document, a duplex scan path having a first document reversing and waiting passage diverged separately from the document discharge passage on the single scan path at the rear of the document scanning part to reverse the document, one surface of which is scanned, and admit the reversed document again to the document scanning part, and a document re-reversing path having a second document reversing and waiting passage diverged separately from the document discharge passage on the single scan path at the rear of the document scanning part to reverse the document, both surfaces of which are scanned, again and send the re-reversed document to the document discharge passage.

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