Image forming apparatus

Details Image forming apparatus Image forming apparatus

2006-01-23

2010-06-08

Nguyen, Judy (Department: 2854)

Electrophotography

Document handling

Copy

C399S361000, C399S381000

Reexamination Certificate

active

07734243

ABSTRACT:
In an image forming apparatus of the present invention, an idle roller once stops rotating when a front edge of a sheet conveyed reaches the idle roller. The idle roller restarts rotating at such a timing that a front edge of a toner image on a photoreceptor and a front edge of an image writing position on the sheet are aligned with each other. Then, even if a rear edge of the sheet is still in the idle roller, the idle roller stops rotating when the front edge of the sheet is sandwiched between a transfer roller and the photoreceptor. By carrying out such operations, it is possible to avoid by a very simple way an occurrence of a slip phenomenon that is a phenomenon of slipping of the sheet with respect to the photoreceptor while suppressing a reduction in image quality as much as possible. In addition, it is also possible to surely secure a blank space formed at a rear edge portion of the sheet.

REFERENCES:
patent: 4128327 (1978-12-01), Sugiyama et al.
patent: 5159393 (1992-10-01), Hiroshima et al.
patent: 63257769 (1988-10-01), None
patent: 3-101769 (1991-04-01), None
patent: 9-68874 (1997-03-01), None
patent: 09244317 (1997-09-01), None
patent: 9-301556 (1997-11-01), None
patent: 10-129893 (1998-05-01), None
patent: 10-254204 (1998-09-01), None
patent: 10254204 (1998-09-01), None
patent: 2001-5310 (2001-01-01), None
patent: 2004-149265 (2004-05-01), None
Machine translation of JP 10254204 A.
Machine Translation of JP 09244317 A.

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