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:
Jan. 17, 1995
Filed:
Mar. 22, 1993
Applicant:
Inventor:
Kesayoshi Iguchi, Fujisawa, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J / ;
U.S. Cl.
CPC ...
40012403 ; 4001201 ;
Abstract
A printer driving apparatus for a line printer comprises: a measuring circuit to measure the number of print dots; and a driving circuit which can change drive timings of dots of a print head in correspondence to a print ratio in each print cycle. When the number of print dots is small, an interval between strobes is narrowed. When it is large, an interval between strobes is widened. Thus, a high-speed printing can be performed in the case of using the power source of the same capacity. When a high-speed printing is not required, the capacity of the power source can be reduced.