Patent · US Expired

Electrophotographic process and apparatus of two revolutions/copy, wet developing type

US4311780A · kind A · utility

15Cited by
0References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 8, 1980
Grant dateJan 19, 1982
Priority date
Expiry dateApr 8, 2000

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G21/0088
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

An electrophotographic process and apparatus of two revolutions/copy, wet developing type is provided in which a corona discharger provides the combined functions of a charging and an image transfer, and in which a combined developing and cleaning unit is used. The unit includes a combined developing and cleaning roller which is driven for rotation in different directions and at different speeds during the developing and the cleaning step.

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