Toner conveying roll and developing apparatus

Details Toner conveying roll and developing apparatus Toner conveying roll and developing apparatus

1998-07-27

2000-02-15

Pendegrass, Joan

Electrophotography

Image formation

Development

399283, G03G 1508

Patent

active

060262656

ABSTRACT:
A toner conveying roll including a rotary shaft, and a surface layer provided around the rotary shaft and formed from a foam elastic body, and wherein the surface layer has a projection extended along an axial direction, and the projection has a substantially trapezoidal cross section. A developing apparatus includes a developing container containing developer, a developer bearing member provided at an opening portion of the developing container and adapted to bear and convey the developer, and a scrape and supply rotary member for scraping and supplying developer while contacting with the developer bearing member, and wherein the scrape and supply rotary member has a surface layer made of foam elastic body and has a projection extending in an axial direction.

REFERENCES:
patent: 5086728 (1992-02-01), Kinoshita
Patent Abstracts of Japan, vol. 018, No. 441, 28 Aug. 17, 1994.
Patent Abstracts of Japan, vol. 017, No. 372, Jul. 13, 1993.

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