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:
Dec. 29, 2015
Filed:
Dec. 02, 2013
Tatsuhiko Okada, Kanagawa, JP;
Mamoru Yorimoto, Kanagawa, JP;
Daisaku Horikawa, Kanagawa, JP;
Yuichi Sakurada, Tokyo, JP;
Makoto Moriwaki, Kanagawa, JP;
Tatsuhiko Okada, Kanagawa, JP;
Mamoru Yorimoto, Kanagawa, JP;
Daisaku Horikawa, Kanagawa, JP;
Yuichi Sakurada, Tokyo, JP;
Makoto Moriwaki, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An image forming apparatus includes a recording head in which a plurality of nozzles for discharging liquid droplets; and a pattern forming unit configured to form a test pattern used for positional deviation adjustment including a first pattern serving as a reference pattern and a second pattern serving as an adjustment pattern. The first pattern and the second pattern each are a linear pattern that is parallel to a nozzle arrangement direction and has a disconnected portion. The disconnected portion of the first pattern and the disconnected portion of the second pattern are shifted from each other in the nozzle arrangement direction.