Patent · US Expired

Electrophotographic developer, process for producing the same, and method of forming image

US6818371B2 · kind B2 · utility

2Cited by
3References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 1, 2002
Grant dateNov 16, 2004
Priority date
Expiry dateAug 1, 2022

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G9/0902
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

An electrophotographic developer comprising at least one element selected from the group consisting of boron and phosphorus in a content of 0.1 to 100 ppm, which the developer is excellent in flowability and shelf stability, does not give image defects such as occurrence of white stripes and attains almost constant image quality even when the ambient conditions including temperature and humidity fluctuate. A production process of a polymerized toner used in the developer, a production process of the developer, and an image forming process.

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