Oce-technologies B.v.

Sandor H G Joppen

Peter Joseph Hollands

Hermanus M A Wijshoff

Frank J H Nottelman

In a method for jetting a droplet of an electrically conductive fluid, a Lorentz force is generated in the electrically conductive fluid. The Lorentz force is directed into an actuation direction. The actuation direction is a direction opposite to the droplet ejection direction. A jetting device is provided for printing a droplet of an electrically conductive fluid.

Method for jetting droplets of an electrically conductive fluid

A method for selectively removing magnetically attractable toner particles from an image-forming device and an image-forming device for performing the same are provided. The image-forming device includes a cleaning magnet system, configured to provide an activatable second magnetic field. The method includes a step of switching the image-forming device into a cleaning mode, the cleaning mode including the steps of stopping the toner supply to the image-recording medium, rotating the rotatable sleeve in a second direction, opposite to the first direction, such that the magnetically attractable toner particles are transported out of the developing zone towards the cleaning magnet system, and activating the second magnetic field so as to remove the transported magnetically attractable toner particles from the rotating rotatable sleeve of the developing element.

Method for operating an image-forming device and an image forming device for application of the method

An inkjet printer including a cartridge for holding ink pellets and means for separating and releasing a single ink pellet and feeding it to the ink-supply unit of a printing head, the cartridge having at least one exit for releasing an ink pellet, wherein the separating and releasing means includes a rotatable shaft extending in a first transport direction provided with a spiralling member at the circumference of said shaft and a tangential movement confining member extending in a parallel direction with respect to said rotatable shaft, positioned at a distance from said spiralling member for confining the tangential movement of an ink pellet, engaging with said spiralling member to form a stable position for transporting said ink pellet in said first transport direction.

Inkjet printer with cartridge for ink pellets

An ink jet device utilizing hot melt ink, said device including an ink reservoir, a heater arranged to heat ink contained in the ink reservoir, and a ventilation conduit which is connected to a ventilation opening in a top wall of the ink reservoir, said ventilation conduit containing a channel running upwards through a heated area. The ink jet device includes an ink melting unit for supplying melted ink to the ink reservoir, said ink melting unit being arranged to enable melted ink to flow into the ink reservoir from above, said channel of the ventilation conduit being in thermal contact with the ink melting unit.

Ink jet device with a ventilation conduit

A device for conveying ink drops from a receiving station, where the ink drops originating from a printhead are received, to a discharge station, where the ink drops in a dried condition are discharged, wherein the device includes a conveyor belt for conveying the ink drops, the conveyor belt having a belt surface for supporting the ink drops during their conveyance from the receiving station to the discharge station, wherein at the discharge station the conveyor belt is provided with means for loosening at least a leading portion of the dried ink drops by changing the path of movement of the belt surface from one plane to another.

Device and method for handling ink drops

An inkjet printer provided with a dispensing device for dispensing ink pellets of substantially identical shape, said dispensing device including a duct for transporting the ink pellets from an upstream location to a downstream ink pellet separating unit, a first boundary means causing the ink pellets to form as a single layer in the duct, the layer disposed at a small angle relative to the horizontal plane, and a second boundary means causing the ink pellets form in a single row in the direction of flow in the duct directly preceding the separating unit, the row having a length such that it extends over at least two ink pellets.

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Grubbenvorst, Netherlands

Sandor H G Joppen