Sheet skew correcting apparatus and image forming apparatus

Details Sheet skew correcting apparatus and image forming apparatus Sheet skew correcting apparatus and image forming apparatus

2006-06-20

2006-06-20

Yan, Ren (Department: 2854)

Typewriting machines

Sheet or web

Including skew correction responsive to position of sheet or...

C400S582000, C271S229000, C271S236000, C271S246000, C271S258010

Reexamination Certificate

active

07063472

ABSTRACT:
A sheet skew correcting apparatus, incorporated in a printer or the like to correct a phenomenon of obliquely feeding a sheet called skewing. The apparatus includes a transporting path in which the sheet is transported, a pair of registration rollers, a pair of timing rollers disposed upstream from the registration rollers, and a paper guide having a first and a second curved portion and constituting the transporting path. When a sheet fed into the transporting path abuts against a contact point of a registration roller pair, the sheet is further transported by an arbitrary distance in the sheet transporting direction. First and second curves are then formed in the sheet in the first and second curved portions. Then the registration roller pair is rotated in the direction opposite to the sheet transporting direction, the front end of the sheet uniformly abuts against the contact point of the registration roller pair to correct skew.

REFERENCES:
patent: 4523832 (1985-06-01), Strutt et al.
patent: 5091754 (1992-02-01), Abe et al.
patent: 5156386 (1992-10-01), Kitajima et al.
patent: 5168317 (1992-12-01), Takano
patent: 5261754 (1993-11-01), Sugiura
patent: 5335904 (1994-08-01), Ryuzaki
patent: 5356263 (1994-10-01), Miller
patent: 5362041 (1994-11-01), Ryuzaki et al.
patent: 5392703 (1995-02-01), Makarchuk et al.
patent: 5702191 (1997-12-01), Kakizaki et al.
patent: 5727784 (1998-03-01), Sagawa
patent: 5787331 (1998-07-01), Ohkuma et al.
patent: 5881340 (1999-03-01), Stickney et al.
patent: 5933697 (1999-08-01), Onodera et al.
patent: 6155561 (2000-12-01), Mandel
patent: 6185403 (2001-02-01), Toyoshima et al.
patent: 6228441 (2001-05-01), Suzuki et al.
patent: 6402139 (2002-06-01), Kanno
patent: 6493534 (2002-12-01), Sawanaka et al.
patent: 6602008 (2003-08-01), Yamagishi et al.
patent: 6634634 (2003-10-01), Sugimura
patent: 6668711 (2003-12-01), Villiger
patent: 11-208940 (1999-08-01), None

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