Patent · US Expired

Image forming apparatus

US5815767A · kind A · utility

25Cited by
13References
30Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 16, 1997
Grant dateSep 29, 1998
Priority date
Expiry dateMay 16, 2017

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G2221/1666
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

In an image forming apparatus, a latent image electrostatically formed on a photoconductive element is developed by a two-ingredient type developer consisting of toner and carrier. The photoconductive element has a life coincident with the life of the developer. When the photoconductive element and developer reach the end of their life, they are replaced at the same time.

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