Title: Matrix printer comprising one or more stackable groups of printing wires

Abstract: A matrix printer comprising one or more identical groups of printing wires which are guided in ducts in stackable plates of synthetic material. In the case of a plurality of stacked groups, the distance at the area of the printing ends of the wires between two adjacent ducts in two different groups equals the distance between two adjacent ducts of the same group. Different paper widths can be accomodated and characters of different dimensions, curves, patterns and so-termed negative characters can be printed without movement of the groups.

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Inventors: Jorigny, Gerard Andre (Villiers-sur-Marne, FR)
Royer, Jacques (Vincennes, FR)
Trichard, Georges Edmond (Chennevieres-sur-Marne, FR)

Application Number: 487017
Filing Date: 1974-07-10
Publication_date: 1976-08-24
Assignee: U.S. Philips Corporation (New York, NY)
Primary Class(es): 400/124.14 101/93.05, 400/29, 400/216.2, 400/694
Other Classes:
US Patent Ref:

2869455	Jan, 1959	Knutsen	101/93.
3018722	Jan, 1962	Saltz et al.	101/93.
3584575	Jun, 1971	Distl	197/1.
3672482	Jun, 1972	Brumbaugh et al.	197/1.
3795298	Mar, 1974	Kodis	197/1.

Other Refs: 1,405,348

May, 1964	FR

Primary Examiner: Rader, Ralph T.
Assistant Examiner:
Attorney: Trifari; Frank R.