Sheet feeding apparatus, and document feeding apparatus and...

Details Sheet feeding apparatus, and document feeding apparatus and... Sheet feeding apparatus, and document feeding apparatus and...

2007-08-28

2010-10-26

Karmis, Stefanos (Department: 3653)

Sheet feeding or delivering

Feeding

By means to convey sheet

C271S262000, C271S263000

Reexamination Certificate

active

07819400

ABSTRACT:
The present invention provides a sheet feeding apparatus including an overlapped feeding detection apparatus which can securely detect overlapped feeding as to a sheet being fed, and a document feeding apparatus and an image processing apparatus including the sheet feeding apparatus. A paper feeding apparatus1bincludes a paper feed tray11, a pickup roller61, a paper roller63, a sorting roller64, feeding rollers66a, resist rollers67, a paper ejection roller73, a passage detection sensor69, an overlapped feeding detection sensor68and a second detection apparatus71. Recording paper is delivered from the paper feed tray11by the pickup roller61according to a printing instruction from a user. The recording paper is fed to the resist rollers67through the paper roller63, the sorting roller64, the feeding rollers66aand the passage detection sensor69. The recording paper temporarily stops at the resist rollers67. In this case, the overlapped feeding detection sensor68detects overlapped feeding of the recording paper.

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patent: 09-235033 (1997-09-01), None
patent: 2006-188354 (2006-07-01), None

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