Inkjet printing apparatus and inkjet printing method

US8939537B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8939537-B2
Application numberUS-201313796062-A
CountryUS
Kind codeB2
Filing dateMar 12, 2013
Priority dateApr 3, 2012
Publication dateJan 27, 2015
Grant dateJan 27, 2015

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Abstract

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By performing an average process of a result of a plurality of times of samplings by the temperature sensor provided on a printing element substrate, temperature of the printing element substrate is obtained. In this case, the number of times of samplings is determined on the basis of a simultaneously driven number in the printing element substrate. This enables the number of times of samplings for the temperature sensor to be determined depending on a simultaneously driven number at each time, and therefore while suppressing an influence of noise, the temperature of the printing element substrate can be measured in a highly reliable state where there is no separation from an actual temperature.

First claim

Opening claim text (preview).

What is claimed is: 1. An inkjet printing apparatus comprising: a print head having a printing element substrate provided with a printing element array in which a plurality of printing elements for ejecting ink are arranged in an arranging direction, and a temperature sensor; a first obtaining unit configured to obtain information regarding a number of simultaneously driven printing elements among the plurality of printing elements within a predetermined time interval; a secon…

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What does patent US8939537B2 cover?
By performing an average process of a result of a plurality of times of samplings by the temperature sensor provided on a printing element substrate, temperature of the printing element substrate is obtained. In this case, the number of times of samplings is determined on the basis of a simultaneously driven number in the printing element substrate. This enables the number of times of samplings…
Who is the assignee on this patent?
Canon Kk
What technology area does this patent fall under?
Primary CPC classification B41J2/0458. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Jan 27 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).