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.

Date of Patent:
Feb. 27, 2001

Filed:

Jul. 27, 1998
Applicant:
Inventors:

Hideyuki Kokubo, Saitama, JP;

Tomoyoshi Nishimura, Saitama, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J 2/355 ;
U.S. Cl.
CPC ...
B41J 2/355 ;
Abstract

A thermal head has plural heating elements arranged in line in a main scan direction. The heating elements are supplied with a train of drive pulses while the thermosensitive recording sheet is conveyed in a sub scan direction crosswise to the main scan direction, for thermal recording to the recording material by one line. The heating elements are grouped into first and second groups. The drive pulse train for the first group of the heating elements is determined by starting the drive pulse train at a start of the one line. The drive pulse train for the second group of the heating elements is determined by ending the drive pulse train at an end of the one line.


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