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. 04, 1998
Filed:
Apr. 19, 1995
Ryoichi Koizumi, Yokohama, JP;
Masahiko Ogawa, Hino, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A printing head according to the present invention resets the count value of a counter in response to an externally supplied signal, and thereafter, counts a signal supplied upon input of an image signal. A decoder generates a selection signal in accordance with the count value, thereby selecting a divided heat-generating element group in units of 32 clocks. Furthermore, an electric current is supplied to heat-generating resistors which belong to the selected heat-generating element group, thereby performing a printing operation. With this printing head, a printer, which can be controlled by a smaller number of control signals, can be realized.