Image forming apparatus

Details Image forming apparatus Image forming apparatus

2009-06-05

2011-10-25

Bollinger, David H (Department: 3653)

Sheet feeding or delivering

Feeding

With means to align sheet

C271S242000, C271S258020, C271S266000, C271S270000

Reexamination Certificate

active

08042806

ABSTRACT:
An image forming apparatus according to an exemplary embodiment of the invention includes a registration roller and a control portion. The registration roller is disposed on an upstream side of an image forming portion in a sheet conveying direction to convey a sheet to the image forming portion. The control portion controls to convey the sheet toward the registration roller at predetermined timing after temporarily stopping the sheet at a plurality of stop positions. The plurality of stop positions is set on an upstream side of the registration roller in the sheet conveying direction. The control portion conveys the sheet at predetermined timing from one of the plurality of stop positions when the plurality of sheets is continuously conveyed to the image forming portion. One of the plurality of stop positions does not become continuously identical.

REFERENCES:
patent: 7751771 (2010-07-01), Ubayashi
patent: 2006/0051145 (2006-03-01), Ubayashi
patent: 2007/0145677 (2007-06-01), Hancock
patent: 2008/0211177 (2008-09-01), Obuchi et al.
patent: 2008/0296836 (2008-12-01), Akiyama et al.
patent: 2009/0218762 (2009-09-01), Terada
patent: 2010/0014884 (2010-01-01), Roppongi
patent: 2002-029649 (2002-01-01), None

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