Paper cassette for image forming apparatus

Details Paper cassette for image forming apparatus Paper cassette for image forming apparatus

2005-09-06

2005-09-06

Bollinger, David H. (Department: 3653)

Sheet feeding or delivering

Feeding

Pack holders

C271S171000

Reexamination Certificate

active

06938893

ABSTRACT:
A paper cassette for an image forming apparatus includes a cassette body, a pair of aligning plates, paper separating fingers, and a biasing member. The cassette body has a knock-up plate on which paper is stackable. The pair of aligning plates are disposed on the paper cassette body and moving in a widthwise direction for aligning paper stacked on the knock-up plate in the widthwise direction. The paper separating fingers are disposed on the aligning plates and are vertically movable to a predetermined distance above the aligning plates, for pressing against two corners of a leading edge of an uppermost sheet of paper stacked on the knock-up plate. The biasing member is connected to at least a side of one of the paper separating fingers, for increasing a relative downward pressure exerted by the paper separating finger on the uppermost sheet of paper stacked on the knock up plate.

REFERENCES:
patent: 4780740 (1988-10-01), Fukae
patent: 4828245 (1989-05-01), Shimogawara
patent: 5163670 (1992-11-01), Sellers et al.
patent: 5238238 (1993-08-01), Shinohara et al.
patent: 5975517 (1999-11-01), Lim
patent: 5992843 (1999-11-01), Lee
patent: 6332610 (2001-12-01), Hiura
patent: 6435499 (2002-08-01), Tomatsu
patent: 04140239 (1992-05-01), None
patent: 04173628 (1992-06-01), None
patent: 05139561 (1993-06-01), None
patent: 06199441 (1994-07-01), None

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