Patent · US Expired

Electrostatographic developing device with toner dosage reservoir

US5852759A · kind A · utility

2Cited by

9References

16Claims

0Family size

Assignee

Agfa-Gevaert NV · BE

Inventors

Leo Vackier · 's-Gravenwezel, BE
Paul Konings · Westerlo, BE
Luc Van Goethem · Sint-Gillis-Waas, BE

Key dates

Filing date	May 19, 1997
Grant date	Dec 22, 1998
Priority date	—
Expiry date	May 19, 2017

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S222/01
WIPO fieldOptics
WIPO sectorInstruments

Abstract

An electrostatographic developing device (15) including a magnet roller (16), a chamber (41) for two-component developer, a holder (22) for toner and a toner dosage reservoir (45) with an opening closed by a magnetic plug (58) of developer, and a magnet (53) for controlling such magnetic plug.

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