Patent · US Expired

Electrographic developing apparatus with toner flow director

US4435065A · kind A · utility

24Cited by
6References
8Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMar 10, 1982
Grant dateMar 6, 1984
Priority date
Expiry dateMar 10, 2002

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G15/0886
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

An electrographic developing apparatus having incorporated therein a toner supply device by which the toner concentration of the developer accommodated in a developer container can be maintained at a constant value substantially without requiring any toner concentration detector. The device has a toner tank having a bottom adapted to be contacted by the developer contained in a toner supply section of the container, and a developer moving device for forcibly moving a portion of the developer contained in a developing section of the container into the toner supply section when replenishing toner is dispensed from the tank.

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