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. 02, 2015
Filed:
Jun. 10, 2014
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/165 (2006.01); B41J 2/045 (2006.01);
U.S. Cl.
CPC ...
B41J 2/04541 (2013.01); B41J 2/04521 (2013.01); B41J 2/04523 (2013.01); B41J 2/0455 (2013.01); B41J 2/04563 (2013.01); B41J 2/0458 (2013.01); B41J 2/04588 (2013.01); B41J 2/04598 (2013.01);
Abstract
An embodiment of this invention relates to an element substrate that implements size reduction of the element substrate and simplification of the arrangement as well as a highly-reliable print operation, a printhead using the same, and a printing apparatus including the printhead. In the element substrate according to this embodiment, the slope of a ramp wave is changed to generate a plurality of pulses using one reference voltage. The slope of the ramp wave can be changed by changing the mirror ratio or the capacitance of a comparator as well as by changing the resistance of a DAC.