Patent · US Active

Method for developing an electrostatic latent image

US7968267B2 · kind B2 · utility

2Cited by
10References
23Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 28, 2010
Grant dateJun 28, 2011
Priority date
Expiry dateApr 28, 2030

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G2221/0005
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

The purpose is to provide, in a development apparatus using a two-component developer, a compact development apparatus, image forming apparatus and development method that prevents carrier deterioration and that can carry out good image formation over a long time period. In a development apparatus using a developer in which are mixed a toner, a carrier, and opposite polarity particles that are charged to a polarity opposite to the charging polarity of the toner, the surface charge density of the opposite polarity particles should be in the range of 0.5 to 3.0 times the surface charge density of the carrier.

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