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:
Jun. 04, 2013
Filed:
Aug. 09, 2010
Katsuyuki Kitao, Kanagawa, JP;
Katsuyuki Kitao, Kanagawa, JP;
Ricoh Company, Limited, Tokyo, JP;
Abstract
An image forming apparatus includes: an obtaining unit that radiates light from a light-emitting unit onto the image carrier and that obtains an output value of a light-receiving unit having received the light reflected from the image carrier; a light amount setting unit that calculates a required light amount value and that sets a light amount adjusting value; a detecting unit that detects a pattern image on the image carrier and by judging whether an output value obtained by radiating light of the light amount adjusting value exceeds a predetermined threshold; and a controller that controls image formation on the image carrier based on a detected result, wherein the detecting unit reduces the threshold when the required light amount value exceeds the limiting value depending on degree of the excess.