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:
Jan. 22, 2019
Filed:
Dec. 05, 2016
Muneaki Iwata, Kanagawa, JP;
Muneaki Iwata, Kanagawa, JP;
Ricoh Company Ltd., Tokyo, JP;
Abstract
An image forming apparatus includes: a photoconductor drum; an optical scanner, having a light source, configured to scan the photoconductor drum with light to form a latent image; a developer configured to develop an image, based on the latent image; a cycle detector configured to detect a rotation cycle of the photoconductor drum, to produce a cyclic signal indicative of the rotation cycle; a density detector configured to detect density of the image; a measurer configured to measure the rotation cycle at each rotation, based on the cyclic signal; a generator configured to generate, based on the density, a correcting value for correcting intensity of the light, the correcting value having a correction cycle based on a measurement result of the measurer; and an adjuster configured to adjust the correction cycle based on the rotation cycle measured at each rotation, so that the correction cycle matches the rotation cycle.