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:
May. 27, 2014
Filed:
Jan. 02, 2013
Fujifilm Corporation, Tokyo, JP;
Yoshiaki Inoue, Kanagawa, JP;
FUJIFILM Corporation, Tokyo, JP;
Abstract
A discharge defect of a nozzle in an apparatus that forms an image on a medium by discharging liquid from a liquid discharge head based on image data is accurately detected. A discharge defect of a nozzle is detected by comparing data (reference data) of a reference image with read data obtained by reading an output image. In this case, a mark for matching the read pixel and the nozzle position with each other is recorded on the medium, and the correspondence relationship is specified by reading the mark. In addition, data items that are converted to have the nozzle resolution by performing a filtering process corresponding to the human visual characteristics for both the data of the reference image and the data of the read image are compared with each other, thereby detecting a discharge defect of a nozzle.