Siemens Aktiengesellschaft

Oce Printing Systems Gmbh

Guenter Rosenstock

Joachim Heinzl

Erich Kattner

Gerhard Wagner

Gerd Goldmann

Wilfried Kindler

Andreas Eckardt

A fixing station for fixing toner images on a carrier material is provided in a printer or copier. A flap or shutter mechanism having a plurality of flaps or shutters that are pivotable into an open and into a closed position are arranged between a heat radiation source and the carrier material for controlling fixing of the toner to the carrier material.

Fixing station for fixing toner images on a carrier material with a

Apparatus for the ejection of ink droplets having a fluid filled channel having a discharge opening at one end, and a cross-sectional expansion at the other, so that pressure waves within the channel produce by a tubular transducer are reflected from the cross-sectional expansion with reversal of operational sign or polarity. Unipolar pulses having symmetrically and trailing edges excite the transducer, and the droplet is ejected from the discharge opening as a result of the superimposed directed and reflected pressure waves produced by the transducer.

Apparatus and method for ejecting ink droplets

A printing head for an ink mosaic printing device is provided with a plurality of diagonally extending ink ducts having downstream ends converging at a printing location on the printing head to form a printing grid pattern. The downstream leading ends of the ducts are formed with wedge-shaped tapered portions, each having a leading edge wall carrying a discharge orifice for ink droplets. By virtue of this construction of the ink ducts, more ink ducts may be used to form the grid pattern and the various discharge orifices may be placed closer to one another to provide higher printing resolution.

Arrangement for a printing head in ink mosaic printing devices

A device for ink printing equipment in office, data or telex machines and the like, for controlling the supply from ink reservoir to the printing head of the machine in which the ink reservoir is movable from a normal position in which ink may be supplied to the machine, to an inoperative position in which supply of ink to the machine is cut off.

Ink controlling device for ink printing equipment in office machines and

An ink for a recording device, particularly for an ink recording device in which the ink is given off by means of pressure in a direction towards the recording carrier by a recorder head, which is spaced from the record member, and in which a vacuum is formed in the ejecting chamber.

Ink for a recording device

A pressure roller bar for ink recording devices is disclosed wherein the rollers are formed with ink absorbing surface portions. The roller may have a synthetic body with a circumferential recess receiving a replaceable felt ring which projects radially outwardly of remaining portions of the roller.

Ink absorbent pressure rollers for ink recording devices

A protective and cleaning combination shield and wiper for ink jet recording device writing heads is provided which consists of a shield member mounted on the writing head and movable between a blocking position in front of the orifices of the writing head and an operating position spaced from and clear of the orifices. The shield is equipped with a resilient wiping arm which wipes across the face of the writing head during movement between the positions.

Protective and cleaning device for writing heads in ink recorder devices

The invention is directed to drive systems for the writing head carriages of printing systems, particularly ink jet writing systems wherein the writing carriage is linearly moved for line printing by means of a non-reversing motor. Various connection systems and kinetic energy storage systems are disclosed.

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Munich, Germany

Guenter Rosenstock