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:
Apr. 24, 2012
Filed:
Aug. 13, 2010
Satoru Imai, Nagano-ken, JP;
Satoru Imai, Nagano-ken, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A thermal printer comprising a printing control unit for correcting current dot printing data supplied from a host based on a previous dot history, and supplying the dot printing data to a print head unit. In accordance with the invention, the printing control unit comprises a line buffer unit for accumulating the current dot printing data; a shift register unit for getting and passing the current dot printing data and previous dot history data from the line buffer unit to a logic circuit unit, which is capable of changing data logic for driving the print head unit based on output from the shift register unit; a configuration registration unit for storing configuration data for setting the data logic of the logic circuit unit according to an energizing pattern; a node control circuit unit for switching the logic circuit unit to output data to the print head unit; and a sequencer unit for controlling the timing of the shift register units, the logic circuit units, and the node control circuit unit.