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:
Jun. 02, 1987
Filed:
Aug. 20, 1985
Applicant:
Inventors:
Osamu Asakura, Tokyo, JP;
Mineo Nozaki, Kawasaki, JP;
Masasumi Nagashima, Yokosuka, JP;
Yoshio Uchikata, Yokohama, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J / ;
U.S. Cl.
CPC ...
400121 ; 400120 ; 400303 ; 400322 ;
Abstract
A dot matrix printer comprises a head comprising a plurality of printing elements, a motor for moving the head, an oscillation source for supplying pulses for driving the motor, and varying means for varying the spacing between dots printed by the head at an integer ratio corresponding to the driving pulses put out from the oscillation source.