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US 8,011,652 B2Granted
Sheet feed device and image forming apparatus
AssigneeFuji Xerox Co., Ltd.
InventorsKazuyuki Tsukamoto, Shin Takeuchi, Minoru Ohshima, Yoshinari Iwaki, Takao Furuya, Kaoru Yoshida
Life of this patent
Estimating the term…
Abstract
A sheet feed device includes an air flow generating part that generates an air flow for floating a sheet; a feed member that feeds a sheet by rotating, while applying a load to the top one of sheets stacked; and a transport condition sensing unit that is positioned not to obstruct an air flow generated by the air flow generating part and senses a transport condition of a sheet fed by the feed member.
Claims17
A sheet feed device comprising:
- an air flow generating part that generates an air flow for floating a sheet;
- a feed member that feeds a sheet by rotating, while applying a load to the top one of sheets stacked;
- a transport condition sensing unit that is positioned not to obstruct an air flow generated by the air flow generating part and senses a transport condition of a sheet fed by the feed member, the transport condition including, at least, displacement of the sheet fed by the feed member;
- and
- a load adjustment unit that adjusts the load applied to a sheet by the feed part, based on a result of sensing of the transport condition sensing unit.
2 more elements
An image forming apparatus comprising:
- an image forming part that forms an image on a sheet;
- a sheet feed device that feeds a sheet to the image forming part;
- and
- an air flow generating part that generates an air flow for floating a sheet to be fed by the sheet feed device,
- the sheet feed device including:
- a feed member that feeds a sheet by rotating, while applying a load to the top one of sheets stacked,
- a transport condition sensing unit that senses the transport condition of a sheet fed by the feed member, the transport condition including, at least, displacement of the sheet fed by the feed member, and the transport condition sensing unit being positioned not to obstruct an air flow generated by the air flow generating part;
- and
- a load adjustment unit that adjusts the load applied to a sheet by the feed part, based on a result of sensing of the transport condition sensing unit.
6 more elements
An image forming apparatus comprising:
- an image forming part that forms an image on a sheet;
- and
- a sheet feed device that feeds a sheet to the image forming part,
- the sheet feed device including:
- a feed member that feeds a sheet by rotating, while applying a load to the top one of sheets stacked,
- a transport condition sensing unit that senses a transport condition of a sheet fed by the feed member, the transport condition including, at least, displacement of the sheet fed by the feed member, and the transport condition sensing unit being positioned not to obstruct an air flow for floating a sheet;
- and
- a load adjustment unit that adjusts the load applied to a sheet by the feed part, based on a result of sensing of the transport condition sensing unit.
5 more elements
Dependencies are inferred from the claim text.