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:
Feb. 07, 2017
Filed:
Oct. 09, 2015
Tetsuya Muto, Tokyo, JP;
Shinichi Akatsu, Kanagawa, JP;
Akira Yoshida, Tokyo, JP;
Keita Gotoh, Kanagawa, JP;
Yuuichiroh Uematsu, Kanagawa, JP;
Tetsuya Muto, Tokyo, JP;
Shinichi Akatsu, Kanagawa, JP;
Akira Yoshida, Tokyo, JP;
Keita Gotoh, Kanagawa, JP;
Yuuichiroh Uematsu, Kanagawa, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
An image forming apparatus includes an image bearer to bear a black toner pattern formed with a black toner image under an increased exposure amount and an increased developing bias. A first optical sensor detects an amount of reflection light reflected by the black toner pattern on the image bearer. The first optical sensor includes a light-emitting element to emit light toward the black toner pattern on the image bearer and a light-receiving element to receive the reflection light reflected by the black toner pattern on the image bearer. A toner adhesion amount converter converts the amount of the reflection light detected by the first optical sensor into a toner adhesion amount of toner adhered to the image bearer and adjusts an image density according to the toner adhesion amount.