Ricoh Company, Ltd.

Ryouji Hirai

Yasuhiro Naoe

Hiroyuki Okuwaki

Yoshinori Hayashi

Kenichiroh Saisho

Jun Ando

Shinichi Ozaki

Tomoya Ohsugi

An optical scanning device includes a light source, a deflector that deflects a light beam from the light source, a first optical system that guides the light beam to the deflector, a second optical system that guides the light beam from the deflector to a surface to be scanned, and a housing that holds the light source and the deflector. At least one optical element included in the first optical system or the second optical system is attached to the housing via an intermediate member. The optical element is adjustable with respect to the intermediate member. The number of directions in which the optical element can be adjusted is two or more.

Optical scanning device and image forming apparatus

An optical scanner that performs scanning by deflecting plural light beams using a single deflector. The optical scanner includes plural pre-scanning optical systems configured to emit the plural light beams and each including a light source. A first of the pre-scanning optical systems emits a first of the light beams to be deflected by the deflecting unit. A second of the pre-scanning optical systems emits a second of the light beams and is disposed in the position different from a position of the first pre-scanning optical system in a rotational axis direction of the deflector.

Optical scanner and image forming apparatus

Growing community of inventors

Kanagawa, Japan

Ryouji Hirai