Mannesmann Aktiengesellschaft

Thomas Werner

Gerhard Lohrmann

Gunther Engelhardt

Guenter Engelhardt

A paper stacking apparatus is for an office machine, wherein the office machine has a forward end and a rear end and includes rollers for sequentially supplying sheets of paper upwardly along a generally vertical path. The sheets extend transversely of the office machine. The path is located between the front end and the rear end. The paper stacking apparatus includes a support frame located above the rollers for sequentially supplying said sheets. A paper guide element is mounted within the support frame in alignment with the path. A forward stacker is mounted on the support frame forwardly of the paper guide element. A rear stacker is mounted on the support frame rearwardly of the paper guide element. The paper guide element is selectively movable to a forward position and to a rear position. The paper guide element at the forward position directs the sheets to the forward stacker for forward to rear stacking of the sheets thereon. The paper guide element at the rear position directs the sheets to the rear stacker for rear to forward stacking of the sheets thereon.

Paper stacking apparatus for office machines

A printing platen particularly for matrix printers is comprised of an aluminum or synthetic body carrying a thin layer of a ceramic material, preferably aluminum oxide, titanium oxide, chromium dioxide or a blend thereof. Such a platen is sufficiently frictional and hard for withstanding the impact of high speed print hammers or needles.

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Neu-Ulm, Germany

Thomas Werner