Patent · US Expired

Developing device with a magnetic brush turning plate

US4980728A · kind A · utility

4Cited by
6References
12Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 29, 1988
Grant dateDec 25, 1990
Priority date
Expiry dateAug 29, 2008

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G15/09
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A developing device for a copier is comprised of a developer roller having a shaft rotatably supported by its developing tank and a magnet structure affixed to this supporting shaft and having a plurality of magnet poles on its external peripheral surface. An arcuate brush forming plate is disposed between the developer roller and the photoreceptor of the copier. One end of this plate is formed to scrape developing agent attached to the developer roller such that it can be transported onto this brush forming plate.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.