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:
Aug. 25, 2009
Filed:
Jan. 16, 2007
Applicants:
Ryoh Idehara, Hyogo, JP;
Nobuhiko Kita, Osaka, JP;
Kazuyoshi Kondo, Osaka, JP;
Tadashi Okano, Ibaraki, JP;
Genta Hagiwara, Ibaraki, JP;
Kaoru Tada, Ibaraki, JP;
Inventors:
Ryoh Idehara, Hyogo, JP;
Nobuhiko Kita, Osaka, JP;
Kazuyoshi Kondo, Osaka, JP;
Tadashi Okano, Ibaraki, JP;
Genta Hagiwara, Ibaraki, JP;
Kaoru Tada, Ibaraki, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/00 (2006.01); G03G 15/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
An image forming apparatus includes a cover frame that holds a held shaft of an optical writing unit to allow a free movement thereof and urges the optical writing unit in a predetermined direction by using an urging coil spring to bring the held portion shaft of the optical writing unit separated from the writing operation position into contact with a contact target portion thereof.