Patent · US Expired

Cleaning devices for use in electrophotographic apparatus

US4253761A · kind A · utility

8Cited by
9References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 6, 1977
Grant dateMar 3, 1981
Priority date
Expiry dateApr 6, 1997

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G21/0041
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A cleaning device for use in an electrophotographic apparatus for removing developer toners remaining on the surface of the photosensitive element after transfer printing a developed image therefrom to a receptor sheet. The cleaning device is provided with a cleaning device comprising a resilient inner member and an outer member provided thereon and frictionally contacted with the element to generate triboelectrical charges of opposite polarity to that of charges existing on the photosensitive element, at the time of being in frictional contact therewith.

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