Sheet supplying apparatus having a plurality of pressurizing mea

Details Sheet supplying apparatus having a plurality of pressurizing mea Sheet supplying apparatus having a plurality of pressurizing mea

1992-03-10

1995-03-14

Grimley, A. T.

Photocopying

Contact printing

Light boxes

355 72, 271127, 271160, G03G 2100

Patent

active

053981081

ABSTRACT:
A sheet supplying apparatus having sheet container for stacking and supporting sheets, and sheet supplying device for feeding out the sheet contained in the sheet container by applying a feeding force to the sheet. Sheet container includes a shiftable intermediate plate on which the sheets are stacked and a plurality of pressurizing members for biasing the intermediate plate toward the sheet supplying device to urge the sheets stacked on the intermediate plate against the sheet supplying device, and each of the pressurizing members being selected in response to the used amount of the sheets stacked on the intermediate plate to apply a biasing force to the intermediate plate.

REFERENCES:
patent: 5002266 (1991-03-01), Kikuchi et al.
patent: 5019839 (1991-05-01), Watanabe et al.
patent: 5020788 (1991-06-01), Hatano et al.

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