Oce Printing Systems Gmbh

Josef Ranner

Bernhard Schlageter

Reinhold Schmidl

Joseph Knott

Bernd Schoch

Klaus Ströl

Christian Heil

René Froeschl

In a method or device for dosing toner material in an electrophotographic printer or copier, toner material is introduced into at least one bucket chamber rotatably arranged in an opening at a bottom of a toner reservoir. The bucket chamber has a paddle wheel which seals the opening of the toner reservoir. As the paddlewheel rotates, toner material in the bucket chamber is conveyed into a region. The toner material conveyed from the paddlewheel is further conveyed with a screw conveyor. Also a toner reservoir is provided having a toner removal opening shaped to accommodate at least a portion of a paddlewheel.

Device and method for dosing toner material in an electrophotographic printer or copier

In a method and device to separate toner material and air from a toner material-air mixture, and first operating phase at toner material-air mixture is supplied to a filter so that air flows through the filter in a first direction. In a second operating phase, the flow of air through the filter in a first direction is interrupted such that toner material deposited on the filter is loosened. In a second operating phase, air flows through the filter in a direction approximately opposite to the first direction. Also in a method device for dosing toner material in an electrophotographic printer or copier, toner material is introduced into at least one bucket chamber rotatably arranged in an opening at a bottom of a toner reservoir. The bucket chamber has a paddle wheel which seals the opening of the toner reservoir. As the paddlewheel rotates, toner material in the bucket chamber is conveyed into a region. The toner material conveyed from the paddlewheel is further conveyed with a screw conveyor. Also a toner reservoir is provided having a toner removal opening shaped to accommodate at least a portion of a paddlewheel.

A method of conveying toner material from a refill container is provided, wherein a refill container having an opening for the discharge of toner material is arranged in a receptacle device in a first substantially upright position. In this first position, the opening is closed by a closing device. The refill container is swiveled into the second position with bottom opening with the aid of the receptacle device. Toner material is taken from the refill container via a discharge opening provided in the closing device. Further, the invention relates to a device for conveying toner material and to an associated toner refill container.

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Ebersberg, Germany

Josef Ranner