Tuner supply for electrostatic copiers

US4237943A · kind A · utility

Assignee

• AGFA-Gervaert AG · DE

Inventors

• Heinrich Ermel
• Franz Fruth · Germering, DE
• Fritz Rau · Unterhaching, DE

Key dates

• Filing date: Apr 20, 1979
• Grant date: Dec 9, 1980
• Expiry date: Apr 20, 1999

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S222/01
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A developer device of an electrostatic copier has a housing provided with an upper opening for admission of toner. A toner supply container has an open side and cooperating parts on the container and housing seive to mount the container on the housing with the open side of the container facing downwardly into the opening so that toner runs from the container into the housing. A slidable closure member on the container can be moved to and fro across the open side to block and unblock the same at the will of a user.