Print stock guide for impact printers

Details Print stock guide for impact printers Print stock guide for impact printers

1975-11-13

1977-03-15

Burr, Edgar S.

Printing

Bed-and-platen machines

Web

197133R, 226196, 242 76, B41F 108

Patent

active

040118142

ABSTRACT:
An impact printer is disclosed for imprinting characters in succession on print stock such as that comprising an elongated strip of label stock backing having a lower edge surface, an upper edge surface, a front surface and a back surface and further comprising a plurality of labels removably adhering to and spaced along a front surface of the elongated strip. The impact printer moves the print stock under tension along a predetermined path past a print station including a hammer capable of controllable, reciprocative movement in a predetermined plane to contact the back surface of the print stock. In order to maintain the print stock properly aligned in a vertical direction with respect to the hammer as it moves in its predetermined plane, a first guide includes a planar reference surface normal to the predetermined plane and is located in proximity to the print station and to the predetermined path of print stock movement. A second guide is located in proximity to the print station for urging the lower edge surface of the print stock into contact with the reference surface. The second guide includes a surface, against which the front surface of the label stock is pressed, whose vertical dimension is normal to the reference surface at a location adjacent the print station and which is inclined with respect to that normal at a location adjacent the supply position.

REFERENCES:
patent: 2522224 (1950-09-01), Hedinger
patent: 2916228 (1959-12-01), Wellington
patent: 3762317 (1973-10-01), Hamisch

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