The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 29, 1990
Filed:
Feb. 10, 1989
Wolfgang Hendrischk, Neu-Ulm, DE;
Mannesmann AG, Duesseldorf, DE;
Abstract
A printhead for dot matrix printing has several styli arranged in one or two vertical columns so that the tips are arranged in one or two mouthpieces being independently movable. High-speed printing operates with a matrix per character having a number of horizontal line positions and as many vertical print positions as there are styli in a column. High-quality printing involves increasing the resolution in both directions, the number of horizontal positions possibly exceeding the number of vertical positions (the latter being an integral multiple larger than one of the numbers of styli in one column). Various structures are disclosed to shift one or two such mouthpieces in vertical direction.