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:
Jun. 04, 2013
Filed:
Sep. 21, 2011
Noriyoshi Shoji, Chiba, JP;
Tomoki Ogura, Chiba, JP;
Kouhei Miyawaki, Chiba, JP;
Norimitsu Sanbongi, Chiba, JP;
Noriyoshi Shoji, Chiba, JP;
Tomoki Ogura, Chiba, JP;
Kouhei Miyawaki, Chiba, JP;
Norimitsu Sanbongi, Chiba, JP;
Seiko Instruments Inc., , JP;
Abstract
A printing apparatus includes a printing unit for performing printing by pressing a thermal head onto heat sensitive paper to heat the heat sensitive paper. A battery supplies a voltage to the thermal head, and a battery voltage detecting unit detects the voltage. A printing control unit changes, according to the detected voltage, a power-off time in which power supply from the battery to the thermal head is stopped. The printing control unit calculates the power-off time based on the detected voltage and the resistance of the thermal head and shortens the power-off time as the detected voltage becomes lower thereby shortening the overall printing time without shortening the life of the heating resistance elements of the thermal head.