Image forming device and sheet transport device

Details Image forming device and sheet transport device Image forming device and sheet transport device

2007-05-11

2010-02-02

Mackey, Patrick H (Department: 3653)

Sheet feeding or delivering

Feeding

With means to interrupt feeding

C271S263000, C271S265040

Reexamination Certificate

active

07654523

ABSTRACT:
This sheet multifeed determination device is capable of accurately detecting a sheet multifeed state, and the sheet multifeed determination device includes: a separating member side sheet speed detecting part which detects a transport speed of a sheet surface on the separating member side of a sheet transported to a nip unit of a paper feed roll and a separating member pressure-contacting mutually; a multifeed sheet detecting part which detects presence of plural sheets in the course of being transported through the nip unit; and a multifeed state determination part which determines not to be in a multifeed state of sheets when the sheet speed detected by the separating member side sheet speed detecting part is V2≦0 and determines to be in the multifeed state of sheets in the case of V2>0 in a condition where the multifeed sheet detecting part detects multifed sheets.

REFERENCES:
patent: 4072854 (1978-02-01), Oshima et al.
patent: 5172900 (1992-12-01), Uno et al.
patent: 6231041 (2001-05-01), Jacques
patent: 59-12029 (1984-01-01), None
patent: 61-46946 (1986-03-01), None
patent: 4-164748 (1992-06-01), None
patent: 5-32356 (1993-02-01), None
patent: 6-72580 (1994-03-01), None
patent: 6-312857 (1994-11-01), None
patent: 7-172629 (1995-07-01), None
patent: 7-215538 (1995-08-01), None
patent: 8-198478 (1996-08-01), None
patent: 9-150990 (1997-06-01), None
patent: 10-45272 (1998-02-01), None
patent: 11-301885 (1999-11-01), None
patent: 2000-95390 (2000-04-01), None
patent: 2001-106391 (2001-04-01), None
patent: 2003-72988 (2003-03-01), None

Affiliated with

Also associated with

Rating

Image forming device and sheet transport device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Image forming device and sheet transport device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image forming device and sheet transport device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4149819