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:
Aug. 05, 1980
Filed:
Jun. 21, 1978
Edward H Lau, Old Westbury, NY (US);
Redactron Corporation, Hauppauge, NY (US);
Abstract
A printer has a horizontally movable carrier which supports a print head including a print element on which are disposed type characters in a two dimensional array with the element controllably movable by motors in two degrees of freedom to selectively position each type character opposite a record-medium-carrying platen for printing. The print head is on a rocker having a cam follower which cooperates with a cam on a shaft driven by a variable speed motor which is also on the carrier. During printing the motor speed is controlled so that the print element is driven against the platen with a force related to the particular character being printed. The motor speed is further controlled so that there is not only a minimum wait between the printing of successive characters but there are also minimum accelerations and decelerations of the motor.