Sheet feeder system and method

Details Sheet feeder system and method Sheet feeder system and method

1994-11-23

1997-04-22

Merritt, Karen B.

Sheet feeding or delivering

Feeding

Separators

271122, 271263, 271902, B65H 352, B65H 712

Patent

active

056223633

ABSTRACT:
A sheet feeder may include a feed roller for compelling a sheet from a stack of sheets into a sheet path and a pair of separation rollers rotating in the same direction for urging sheets along the sheet path. The separation rollers may be selectively and separately disengaged from their motive source in coordination with operation of a motor for the feed roller to provide multiple checks for sheet multifeeds. At each check, extra sheets are returned to the stack of sheets.

REFERENCES:
patent: 3857559 (1974-12-01), McInerny
patent: 4494747 (1985-01-01), Graef et al.
patent: 4928951 (1990-05-01), Fukui
patent: 5029837 (1991-07-01), Uchiyama
patent: 5052836 (1991-10-01), Genno
patent: 5172899 (1992-12-01), Tajims
patent: 5316284 (1994-05-01), Bolognese et al.
patent: 5435538 (1995-07-01), Billings et al.
Abbiate et al., "Document Autofeed Mechanism and Multifeed Detection", IBM Technical Disclosure Bulletin, vol. 22 No. 11, Apr. 1980.

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