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:
Oct. 27, 2020
Filed:
Jul. 19, 2019
Toshiba Tec Kabushiki Kaisha, Shinagawa-ku, Tokyo, JP;
Shigeru Morino, Numazu Shizuoka, JP;
TOSHIBA TEC KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A print head includes a memory, an input and output unit, and a plurality of light emitting elements. The memory is configured to store a first light quantity value obtained by measuring a light quantity of each of the plurality of light emitting elements when supplied with a first reference current value, and a light quantity difference value between the first light quantity value and a second light quantity value obtained by measuring a light quantity of each of the plurality of light emitting elements when supplied with a second reference current value. The input and output unit is configured to output the first light quantity value and the light quantity difference value and receive a correction value determined based on the first light quantity value and the light quantity difference value. The light emitting elements are configured to emit light based on a correction current value corresponding to the correction value.