Patent · US Expired

Light memory removing system in an electrophotographic copying machine

US4416536A · kind A · utility

17Cited by
3References
5Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 5, 1982
Grant dateNov 22, 1983
Priority date
Expiry dateMay 5, 2002

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G2221/1687
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

An electrophotographic copying machine includes a housing which is separated into an upper body and a lower body along a path of a copy paper in order to facilitate the removal of a jammed paper. When the housing is separated into the upper and lower bodies, a light memory effect is created on a photosensitive drum due to the ambient light. When the upper body is closed after removal of the jammed paper, a light memory removing operation is conducted, wherein a transcription unit and an erase unit are activated without transferring a copy paper.

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