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:
May. 20, 1986
Filed:
Jan. 13, 1984
Yoh Matsushita, Yokohama, JP;
Ricoh Company, Ltd., , JP;
Abstract
A thermal recording head driving control system for controlling the activation of heat-producing elements mounted on a substrate is provided. The driving control system includes a shift register having a number of bits corresponding to the heat-producing elements. The image data stored in the shift register is serially supplied to one input terminal of an AND gate which has its the other input terminal connected to receive a control pulse and its output terminal connected to supply an activation pulse to the thermal recording head. The activation pulse is formed from the image signal depending upon the condition of the control pulse which is determined by the temperature of the substrate on which the heat-producing elements are mounted and the activation history of each of the heat-producing elements. Specifically, the same image data is repetitively supplied to the shift register over a predetermined number of times at a speed much faster than the line scanning speed along the linear array of heat-producing elements, wherein the number of activation pulses produced is controlled by changing the binary state of the control pulse.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile