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:
Nov. 15, 1988
Filed:
May. 18, 1987
Masato Takami, Hirakata, JP;
Akio Akao, Hirakata, JP;
Sanyo Electric Co., Ltd., , JP;
Abstract
The present invention relates to a method and a circuit for enhancing a fine line in the direction perpendicular to the arraying direction of the printing elements (i.e., in the direction of moving the printing paper) of a line printer which prints by applying either thermal elements or wires giving dot impact, and in which, for example, supposing the successive 4 printing elements comprising A, B, C and D, when the printing element C prints black and all others do white, the printing element C prints black and the other print while, the printing element B is made to print black to enhance a fine line by printing with two printing elements, so that the total visibility of the fine line is improved.