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:
Mar. 12, 2019
Filed:
Mar. 27, 2017
Brother Kogyo Kabushiki Kaisha, Nagoya-shi, Aichi-ken, JP;
BROTHER KOGYO KABUSHIKI KAISHA, Nagoya-Shi, Aichi-Ken, JP;
Abstract
A liquid ejection head has a plurality of nozzles and has a plurality of drive elements configured to cause the plurality of nozzles to eject liquid. A temperature sensor is configured to detect a temperature of the liquid ejection head. A heat generator generates heat when the plurality of drive elements is driven. A controller is configured to: perform a determining process of determining, based on a particular parameter indicative of a temperature difference, whether the printer is in a first state where the temperature difference is constant or in a second state where the temperature difference varies with time, the temperature difference being a temperature difference between the temperature detected by the temperature sensor and an actual temperature of the liquid ejection head; and control the plurality of drive elements based on a determination result in the determining process.