Patent · US Expired

Electrophotographic printer having a gravity driven toner recycling unit

US5289249A · kind A · utility

12Cited by
6References
5Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 6, 1992
Grant dateFeb 22, 1994
Priority date
Expiry dateMay 6, 2012

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G21/105
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

An electrophotographic printer which includes a developing device for developing an electrostatic latent image formed on the surface of a photoconductor by adhering a developer thereto, a cleaning device for collecting the developer which remains on the photoconductor for reuse after the transference of the developer, and a toner recycling route for flowing the collected developer from the cleaning device back to the developing device by gravity. The photoconductor is exposed to a light source prior to the developer being applied to the surface of the photoconductor.

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