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:
Dec. 15, 1992
Filed:
Feb. 06, 1992
Applicant:
Inventor:
Hiroki Kawamura, Aichi, JP;
Assignee:
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J / ;
U.S. Cl.
CPC ...
400697 ; 101 9303 ; 310 14 ; 4001573 ;
Abstract
Upon operation of an erasure key for erasing a printed character, a correction ribbon is moved in an erasure position according to rotation of a motor, and then, the motor is continuously rotated forward at a current I2 larger than a current I1 in a print operation. Therefore, a print hammer is accelerated to a speed V2 higher than a speed V1 in the print operation, to strike a platen at the speed V2. In the erasing operation, no pressing operation is performed after the stroke. Rather, the print hammer is immediately returned and the ink is removed.