Printing apparatus and control method therefor

US8944562B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8944562-B2
Application numberUS-201313864614-A
CountryUS
Kind codeB2
Filing dateApr 17, 2013
Priority dateMay 7, 2012
Publication dateFeb 3, 2015
Grant dateFeb 3, 2015

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

The invention has been made to prevent ink adhesion or an ink discharge failure caused by ink adhesion due to evaporation of volatile components of ink which occurs when the ink receptor of a printhead is exposed to air for a long time. If an inkjet printhead and an ink tank containing ink to be supplied to the printhead are attached to a carriage, the ink supply port of the ink tank is pressed to the ink receptor of the printhead. In this arrangement, the presence/absence of attachment of the ink tank to the carriage is detected. If it is detected that the ink tank is not attached to the carriage, a suction operation for the printhead is performed and controlled to suck out ink from the nozzles of the printhead.

First claim

Opening claim text (preview).

What is claimed is: 1. A printing apparatus comprising: a printhead having a plurality of nozzles for discharging ink; an ink tank configured to store ink to be supplied to the printhead and detachably attached to the printhead; a carriage to which the printhead and the ink tank are mounted; a detection unit configured to detect whether or not the ink tank is attached to the printhead; a suction unit configured to perform a suction operation of sucking out ink from the pri…

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Frequently asked questions

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What does patent US8944562B2 cover?
The invention has been made to prevent ink adhesion or an ink discharge failure caused by ink adhesion due to evaporation of volatile components of ink which occurs when the ink receptor of a printhead is exposed to air for a long time. If an inkjet printhead and an ink tank containing ink to be supplied to the printhead are attached to a carriage, the ink supply port of the ink tank is pressed…
Who is the assignee on this patent?
Canon Kk
What technology area does this patent fall under?
Primary CPC classification B41J2/16532. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Feb 03 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).