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. 18, 2011
Filed:
Sep. 25, 2006
Takeshi Yamakawa, Kanagawa, JP;
Hiroshi Yoshizawa, Kanagawa, JP;
Katsunori Shoji, Kanagawa, JP;
Masanori Namba, Tokyo, JP;
Takeshi Yamakawa, Kanagawa, JP;
Hiroshi Yoshizawa, Kanagawa, JP;
Katsunori Shoji, Kanagawa, JP;
Masanori Namba, Tokyo, JP;
Ricoh Company, Limited, Tokyo, JP;
Abstract
An optical scanning device, that outputs a light beam through an emission window in an optical housing to scan a surface, may include a shutter member that closes or opens the emission window. The shutter member may include a first opening, that may allow the light beam passed through the emission window to pass the first opening, and a second opening, that may be at a position corresponding to an insertion operation of a cleaning member for cleaning the emission window. The shutter member may include a first opening, that may be on a front surface of the shutter member to allow the light beam passed through the emission window to pass the first opening, and a second opening, that may be on a side surface of the shutter member to allow a cleaning member to be inserted through the second opening for cleaning the emission window.