Print stock guide for impact printers
US4011814A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 13, 1975 |
| Grant date | Mar 15, 1977 |
| Priority date | — |
| Expiry date | Nov 13, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J15/16
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
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 v…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.