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:
Aug. 10, 2004
Filed:
Apr. 22, 2003
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A first array state has a first nozzle group provided with first nozzles arranged at an array pitch d , and second nozzle groups each provided with first nozzles arranged at an array pitch d . The second nozzle groups are disposed on both sides of a nozzle array, and the first nozzle group is disposed therebetween. A second array state has a first nozzle group provided with second nozzles arranged at the array pitch d , and second nozzle groups each provided with second nozzles arranged at an array pitch d . The second nozzle groups are disposed on both sides of a nozzle array, and the first nozzle group is disposed therebetween. A diameter of each first nozzle is set greater than that of each second nozzle , and a volume of an ink droplet discharged is also greater. The array pitch d is set greater than the array pitch d , and the array pitch d is set smaller than the array pitch d and the array pitch d . This can prevent occurrence of a white stripe upon solid printing.