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. 18, 2004
Filed:
Oct. 30, 2001
Masayuki Hachinoda, Nara, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A printing apparatus includes a defect detection unit, and when print data to cause all of one line to be blank is inputted to a thermal head, in parallel with printing of a blank line, a transistor for short-circuiting a current detection resistor becomes in an OFF state, the current detection resistor is made conductive, values of currents flowing through respective heaters are compared with a predetermined comparison signal in order of first to fourth strobes for dividing a heater array of the thermal head, and the defect of the thermal head is detected from this comparison result.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile