Electrostatic-copier cleaning device

US4071296A · kind A · utility

Assignee

• Agfa-Gevaert NV · BE

Inventors

• Heinrich Ermel
• Franz Fruth · Germering, DE
• Georg Fryda · Munich, DE
• Peter Lang · Gelnhausen, DE
• Fritz Rau · Unterhaching, DE
• Jurgen Vossnacke

Key dates

• Filing date: Feb 17, 1976
• Grant date: Jan 31, 1978
• Expiry date: Feb 17, 1996

Classification

• Technology area (CPC G): Physics
• CPC primary: G03G21/007
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A cleaning device for an electrostatic copier of the type having an endless travelling charge carrier provided with a photosensitive surface which is electrostatically chargeable to form a latent image to which toner particles are attracted for subsequent transfer to an image carrier. The cleaning arrangement removes residual toner particles from the surface prior to the next electrostatic charging thereof and is in form of a cleaning cartridge that can be inserted into and removed from the copier in toto. The cartridge has a leading open end and instrumentalities at this end which engage the photosensitive surface of the charge carrier when the cartridge is inserted into the copier. Elastically deformable sealing elements are provided on the cartridge and at least in part bound the open end thereof, yieldingly engaging the photosensitive surface in response to the insertion of the cartridge into the copier.