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:
Jul. 19, 1988

Filed:

Apr. 01, 1987
Applicant:
Inventors:

Tsuneo Yasui, Nagoya, JP;

Yoshiharu Hirai, Anjo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J / ;
U.S. Cl.
CPC ...
400323 ; 400322 ; 400 88 ;
Abstract

A battery powered serial printer having a print head for printing data on a printing sheet in a normal direction from the beginning of a line or in the reverse direction from the end of a line includes a drive unit for moving the print head in reciprocatory movement in the normal and reverse directions, and a device for judging whether the print head is printing characters in the normal direction or in the reverse direction. The serial printer further includes a correcting device responsive to voltage changes for delaying the initiation of the operation of printing characters by the print head at the least in either the normal direction and/or the reverse direction judged by the judging device, so as to bring the positions of characters printed in the normal direction into alignment with the positions of characters printed in the reverse direction.


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