Agfa-gevaert Ag

Fritz Rau

Franz Fruth

Heinrich Ermel

Gunther Schnall

Georg Fryda

Walter Franke

Hans J Vedder

Ottmar Wolf

Peter Lischinski

Wolfgang Ebner

Peter Lang

Johann Horvat

Jurgen Vossnacke

A microfilm printer with microvalue pixel generation comprises means for converting digital image values supplied to a computer into light signals, optical means for indicating the light signals on a microfilm per each micro image linearly, the converting means including a light valve line with light valve line elements controlled by the computer, the optical means including a reducing optical element.

Microfilm printer with microvalue pixel generation

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.

Tuner supply for electrostatic copiers

An electrostatic copier of the type wherein an electrostatic image pattern is formed on the photoconductive surface of a travelling endless carrier, to which pattern toner particles are attracted to form a visible image which is then transferred to an image carrier, has a toner removing apparatus for removing residual toner particles from the photoconductive surface. The apparatus has a roller adjacent the surface and a doctor blade above the roller which strips toner particles from the surface so that they fall onto the roller. During rotation of the roller these particles are stripped off the roller and enter through a slot into a tube in which a polygonal cross-section member rotates which entrains the particles and conveys them to another slot of the tube to eject them from this other slot into a storage chamber.

Toner removing apparatus

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.

Electrostatic-copier cleaning device

Growing community of inventors

Unterhaching, Germany

Fritz Rau