Sheet supply roller for use in sheet supply unit

Details Sheet supply roller for use in sheet supply unit Sheet supply roller for use in sheet supply unit

1998-06-22

2000-07-04

Skaggs, H. Grant

Sheet feeding or delivering

Feeding and delivering

Separator and conveyor

271119, 271121, B65H 522

Patent

active

060827262

ABSTRACT:
A sheet supply unit for use in an image forming device. The sheet supply unit includes a sheet supply roller rotatable in a rotational direction. The sheet supply roller has a circumferential surface both made of a resilient member. The circumferential surface has a first contacting portion and a last contacting portion. The first contacting portion has a width which increases in the rotational direction, and the last contacting portion has a width which decreases in the rotational direction. This enables a sheet to smoothly come into contact with and separated from the circumferential surface. Therefore, the sheet is prevented from being damaged by a sharp increase of pressing force. Also, redundant supply of sheets can be prevented.

REFERENCES:
patent: 5374047 (1994-12-01), Tsukamoto et al.
patent: 5582399 (1996-12-01), Sugiura
patent: 5584475 (1996-12-01), Asada

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