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:
Jul. 01, 2014
Filed:
Feb. 09, 2012
Takahiro Aida, Tokyo, JP;
Takahiro Aida, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The number of head contacts, which increases along with an increase in the number of ink colors and nozzles used in a printhead and the length of the printhead, can be decreased. To accomplish this, a reception unit, which receives a serialized control parameter having an identification code indicating a normal drive pulse for discharging ink or a pulse short enough not to discharge ink, is arranged on the head substrate of a printhead. Further, a normal pulse generation unit, which generates the normal drive pulse based on a received control parameter, and a short pulse generation unit, which generates the short pulse based on a received control parameter, are arranged on the head substrate. Based on the identification code of the control parameter, it is controlled to output the normal drive pulse or short pulse.