Patent · US Expired

Method and apparatus for image developing capable of using developer in a magnet brush form

US6449452B1 · kind B1 · utility

22Cited by
7References
53Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMay 10, 2000
Grant dateSep 10, 2002
Priority date
Expiry dateMay 10, 2020

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G15/0921
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

An image developing apparatus includes a latent image carrying member and a developer carrying member. The developer carrying member carries developer which forms a magnetic brush on a surface thereof and causes the magnetic brush to brush a surface of the latent image carrying member in the developing region so that the latent image on the latent image carrying member is visualized. In the apparatus, a developing nip is formed relatively small so that a time period in which a toner of the magnetic brush moves to the developer carrying member back from the latent image carrying member is reduced and a density of the magnetic brush is increased. A developing magnetic pole of the developer carrying member has specific half-angle and attenuation rate values.

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