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:
Jun. 27, 2017
Filed:
May. 20, 2016
Nisca Corporation, Minamikoma-gun, Yamanashi-ken, JP;
Yuichi Aihara, Yamanashi-ken, JP;
Yasutake Ohshiro, Yamanashi-ken, JP;
NISCA CORPORATION, Minamikoma-gun, Yamanashi-ken, JP;
Abstract
The printing apparatus includes a ribbon laid between spools, and DC motors for rotating these spools. A CPU drives the motor without tension, calculates the rotation velocity of the motor based on the rotation amount of the motor, applies the calculated rotation velocity and supplies current in driving the motor, by calculating a drive current for providing the DC motor with a same rotation velocity as a rotation velocity of a reference DC motor based on a difference between a rotation speed of the DC motor in driving the DC motor at a predetermined supply current in a state in which the ribbon is broken, or the ribbon is separated from the supply spool, and a rotational speed of the reference DC motor in driving the reference DC motor at the predetermined supply current, and controls the motor driver to supply the calculated drive current.