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. 04, 2019
Filed:
Nov. 27, 2017
Canon Kabushiki Kaisha, Tokyo, JP;
Hiroyasu Nomura, Inagi, JP;
Nobuyuki Hirayama, Fujisawa, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A print element substrate that includes a plurality of heaters and a plurality of temperature sensors provided in correspondence with a plurality of nozzles, comprises: a selecting unit that selects one temperature sensor from the plurality of temperature sensors and output a temperature signal; a determining unit that determines a discharge state of the nozzle based on the temperature signal output by the selecting unit; an outputting unit that, based on a determination result output from the determining unit, externally outputs a signal indicating the discharge state of the nozzle corresponding to the selected temperature sensor; and a masking unit that, in accordance with a change in selection of the temperature sensor by the selecting unit, masks the determination result output from the determining unit to the outputting unit during a predetermined time from a timing of the change.