Mannesmann Aktiengesellschaft

Kurt Roehrer

Gerhard Lohrmann

A feeder for a printer serves for guiding and/or advancing the record carrier. Tractors (1a and 1b) placed in a pair are provided. The tractors (1a and 1b) have hinged parts which can be adjusted in different hinged positions by pivoting bearings (11). To provide hinged part on printers, particularly dot matrix printers, with simple pivoting bearings that can be produced economically and to eliminate a special fastener for the pivoted positions, a spring steel wire piece (18) cut to length serves as a pivot pin (17) and for fixing of the closed and open end positions of the hinged part (10). The spring steel wire piece (18) is put under tension by bending.

Feeder for a printer

Single sheet feeding from a stack is provided by placing the stack onto flat bars defining a stack bottom and being part of a pivotable frame. That frame includes holddown fingers engaging the top sheet at its front edges, and, two separating rollers are provided laterally offset and at a higher level; the rollers are reversibly driven to pull the top sheet out from under the fingers, and upon reversing the rollers slide that sheet towards a platen drum being selectively drivingly coupled to the separating rollers.

Growing community of inventors

Niederstotzingen, Germany

Kurt Roehrer