Patent · US Active

Image forming apparatus and process cartridge

US7693465B2 · kind B2 · utility

1Cited by
10References
6Claims
0Family size

Assignee

Inventor

Key dates

Filing dateOct 10, 2008
Grant dateApr 6, 2010
Priority date
Expiry dateOct 10, 2028

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G15/0907
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

An image forming apparatus and process cartridge which uses a two-component developer comprising a toner and a carrier. By using toner and carrier having a small-particle size, deterioration of the toner fluidity over time can be avoided, and further by maintaining stable toner charge even in a low-humidity environment, stable high-quality image formation can be achieved. The occurrence of adherence of carrier to the solid portions of the toner image is reduced in addition to the occurrence of adherence of carrier to the edge portions, and image abnormalities, toner scattering and the like are prevented.

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