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:
Feb. 17, 1987
Filed:
Sep. 17, 1985
Seikosha Co., Ltd., Tokyo, JP;
Abstract
An impact dot printer has a print head which reciprocates back and forth in front of a rotationally driven platen to print dot matrix characters on a recording medium. The print head includes a single print hammer actuated by an electromagnetic driver. A succession of print timing signals are produced in synchronism with the rotational speed of the platen, and a home signal is generated each time the print head leaves its home position during the printing of each line. A control circuit initiates the printing of each line in response to the first print timing signal produced after generation of the home signal and controls the application of driving pulses to the electromagnetic driver so as to synchronize the actuation of the print hammer with the platen rotation.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile