Ricoh Company, Ltd.

Wataru Hojo

Masahiro Ishida

Naoki Matsuda

Kohta Takenaka

Toshihiro Shimada

Hiroki Ishimitsu

Hideyuki Takemoto

Makoto Yoshioka

Yoshihide Ota

According to an aspect of the invention, an image forming apparatus includes an apparatus body, a sound absorbing device utilizing a Helmholtz resonator, and a hinged exterior cover operable to open and close relative to the apparatus body. The hinged exterior cover is a hinged cover configured to pivot about a pivot shaft arranged at a lower end portion of the hinged exterior cover. At least a part of the hinged exterior cover has a multiplex structure made by overlaying a plurality of plate-like members on one another. The sound absorbing device is formed by utilizing space between two plate-like members of the plurality of plate-like members making up the multiplex structure as a cavity of the Helmholtz resonator.

Image forming apparatus having a sound absorber

Image forming apparatus

An image forming device includes an image forming unit, an image reading unit arranged above an upper part of the image forming unit, a sheet ejection space between the image forming unit and the image reading unit, and a supporting unit arranged on the upper part of the image forming unit to surround at least two sides of the sheet ejection space in different directions. The image reading unit is secured to the upper part of the image forming unit through the supporting unit.

Image forming device

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Tokyo, Japan

Wataru Hojo