Wifo Wissenschaftliches Forschungs-institut A.g.

Wito Wissenschaftliches Forschungs-institut A.g.

Paul Heinzer

Helmut Wulz

Apparatus for fixing electrophotographic images carrying toner powder and comprising an upper heated fixing roller and a lower driven counter roller cooperating with the fixing roller to form a nip for the passage of image bearing sheets to be fixed, the fixing roller having a resilient tubular shell of metal or other material of high thermal conductivity.

Apparatus for fixing electrophotographic images

An electrophotographic copying machine which includes an endless and seamless image forming and transfer band of electrically conducting material having a coating of photoconductive material.

Electrophotographic copying machine with seamless image forming and

Apparatus for fixing electrophotographic images produced by an electrophotographic copying machine, comprising a conveyor belt for transporting image bearing sheets on its upper run and a planar heater which extends substantially parallel to the upper run and is disposed closely above it but out of contact with the sheets.

Electrophotographic copying machines

A photocopying machine which includes a band conveyor for transporting sheet material through the machine, the conveyor including end drums supporting a band of seamless and endless perforated metal with its upper run disposed over a suction chamber.

Growing community of inventors

Zurich, Switzerland

Paul Heinzer