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:
Aug. 23, 2016
Filed:
Apr. 06, 2015
Yuichi Aihara, Yamanashi-ken, JP;
Yasutake Ohshiro, Yamanashi-ken, JP;
Yuichi Aihara, Yamanashi-ken, JP;
Yasutake Ohshiro, Yamanashi-ken, JP;
NISCA CORPORATION, Minamikoma-Gun, Yamanashi-Ken, JP;
Abstract
To provide a printing apparatus capable of preventing the image quality from deteriorating, the printing apparatus is provided with a ribbonlaid between spools, DC motors Mr, Mrfor rotating these spools, driver for supplying driving power to the motors, encoders for detecting rotation amounts of the motors, and controller that controls the driver. A CPU drives the motor without the tension due to the ribbonbeing applied, calculates the rotation velocity of the motor based on the rotation amount of the motor detected in the encoder, applies the calculated rotation velocity and the supply current in driving the motor to the relationship between the rotation velocity and the supply current in a reference motor, and calculates the supply current for providing the same rotation velocity as the rotation velocity in driving the reference motor with the supply current of the time the motor is driven.