Sheet conveying device, image forming apparatus and method...

Details Sheet conveying device, image forming apparatus and method... Sheet conveying device, image forming apparatus and method...

2008-09-23

2008-09-23

Mackey, Patrick (Department: 3653)

Sheet feeding or delivering

Feeding

Separators

C271S125000, C271S274000

Reexamination Certificate

active

11189821

ABSTRACT:
The sheet paper conveying device comprises: paper supply rollers at least part of which rotate to convey the sheet paper in a prescribed direction; separation rollers that rotate in the direction reverse to the sheet paper conveying direction or rotates jointly with the paper supply roller; auxiliary rollers that clamp the sheet paper jointly with the paper supply rollers and freely rotate; a first pressurizing member to press the separation rollers against the paper supply roller side; and a second pressurizing member to press the auxiliary roller against the paper supply roller side.

REFERENCES:
patent: 4083555 (1978-04-01), Irvine et al.
patent: 4613127 (1986-09-01), Wishart et al.
patent: 5207788 (1993-05-01), Geib et al.
patent: 5350168 (1994-09-01), Sheridan
patent: 6000689 (1999-12-01), Furuki et al.
patent: 6672579 (2004-01-01), Araki et al.
patent: 63-171737 (1988-07-01), None
patent: 2-209275 (1990-08-01), None
patent: 3-182445 (1991-08-01), None
patent: 2000-302279 (2000-10-01), None

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