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:
Sep. 14, 1999
Filed:
Feb. 02, 1998
Masafumi Kawaura, Nagoya, JP;
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Abstract
When performing printing by the ink jet head 13, the control unit 78 controls the step motor 75 to rotate counterclockwise by the first number of steps corresponding to the paper feeding quantity of one-line and, after the paper feeding of one-line, to rotate clockwise by the second number of steps smaller than the first number of steps to thereby rotate the paper supply roller 70 clockwise through the middle gear 74 and the driven gear 73, during which the back-tension generated in the paper sheet S is removed. Accordingly, a constant paper feeding quantity can be maintained without regard to the back-tension, providing a stable paper feeding accuracy. Since the back-tension has been removed from the paper sheet S whenever characters and the like are printed on the paper sheet S, in combination of the stable paper feeding accuracy, high printing quality can be obtained without the occurrence of white lines in the printed characters.