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. 30, 2009
Filed:
Oct. 24, 2006
Ryoh Idehara, Hyogo, JP;
Nobuhiko Kita, Osaka, JP;
Kazuyoshi Kondo, Osaka, JP;
Tadashi Okano, Ibaraki, JP;
Genta Hagiwara, Osaka, JP;
Kaoru Tada, Osaka, JP;
Ryoh Idehara, Hyogo, JP;
Nobuhiko Kita, Osaka, JP;
Kazuyoshi Kondo, Osaka, JP;
Tadashi Okano, Ibaraki, JP;
Genta Hagiwara, Osaka, JP;
Kaoru Tada, Osaka, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
In an image forming apparatus, a photoreceptor carries a latent image on its looped surface. An optical writing unit moves between an operating position at which writing of a latent image is performed on the looped surface of the photoreceptor and a standby position at which writing is not performed. A developing device develops the latent image carried on the photoreceptor. A reference position member is located at a reference position for positioning the optical writing unit. A positioning member positions the optical writing unit. A bias coil spring biases the reference position member so that the reference position member contacts the positioning member.