Inkjet printing apparatus and determination method of driving pulse applied to inkjet printing apparatus

Patent metadata

Field	Value
Publication number	US-8944552-B2
Application number	US-201213644787-A
Country	US
Kind code	B2
Filing date	Oct 4, 2012
Priority date	Nov 16, 2011
Publication date	Feb 3, 2015
Grant date	Feb 3, 2015

Abstract

An inkjet printing apparatus includes a printhead including a temperature sensor and an element array formed by arraying a plurality of heat generation elements each of which generates a thermal energy required to discharge an ink in response to application of a driving pulse, a specifying unit configured to specify a portion used in printing of the element array, and a selection unit configured to select a driving pulse to be applied to the respective heat generation elements based on the portion specified by the specifying unit and a temperature of the printhead measured by the temperature sensor.

First claim

What is claimed is:

1. An inkjet printing apparatus comprising:
a printhead including a temperature sensor and an element array formed by arraying a plurality of heat generation elements, each of which generates thermal energy required to discharge ink in response to application of a driving pulse, wherein the printhead is configured such that a portion of the element array used for printing is changeable;
an obtaining unit configured to obtain information relating to the portio…

Assignees

• Canon Kk

Inventors

• Yasutani Jun

Classifications

• B41J2/0458

  Operations & Transport · mapped topic

• B41J2/04591

  Operations & Transport · mapped topic

• B41J29/02

  Operations & Transport · mapped topic

• B41J2/04543

  Operations & Transport · mapped topic

• B41J2/04598

  Operations & Transport · mapped topic