Ricoh Company, Ltd.

Nobuhiro Shima

Yoshihide Ohta

Takayuki Nishi

Hiroki Ishimitsu

Kazuyuki Ito

Katsuhiro Hoshi

Takeshi Saito

Yuki Sato

Kazuhiro Kobayashi

Keiichi Shimizu

Hidetoshi Yano

Hiromitsu Takagaki

Naoki Iwata

Hiroaki Murakami

Tetsuji Nishikawa

Ichiro Komuro

Kazuhiro Nishido

Takashi Kuwayama

Shigeki Sawa

Jo Ebara

An image forming apparatus includes a scanner to read an image on an original and an electric box disposed below the scanner and extended horizontally with respect to the scanner. The electric box includes an electric cabinet having a box shape and an electrical device disposed inside the electric cabinet.

Image forming apparatus

An image forming apparatus includes an outer cover, an interior device spaced apart from the outer cover, and an accommodating recess interposed between the outer cover and the interior device. The accommodating recess accommodates an arbitrary part of the image forming apparatus.

Image forming apparatus including an electronics container designed to permit an overall efficient structure

An image forming apparatus includes an electric wire and an electric box. The electric box extends substantially horizontally and includes a wire connector coupled to the electric wire. A body face exposes the wire connector. An outer cover covers the body face. The outer cover includes a slot and a wire accommodator. The slot is disposed opposite the wire connector to expose the wire connector to an outside of the image forming apparatus. The wire accommodator accommodates the electric wire.

Image forming apparatus including an outer cover and a subsidiary cover

A state determining device includes a current detecting unit, a state determining unit, and a notifying unit. The current detecting unit detects a current value of a drive current which flows into a drive motor that rotary-drives a driven unit with a drive force according to the drive current. Based on the drive current value detected by the current detecting unit, the state determining unit determines a state of a driving system including the driven unit. The notifying unit notifies a user of a determination result of the state determining unit.

State determining device, image processing apparatus, state determining method, and computer program product

In a developing device for an image forming apparatus, a developing roller has dielectric portions and conductive portions distributed regularly or irregularly over the surface thereof. The surfaces of the dielectric portions are smaller in height than the surfaces of the conductive portions. The difference in height is greater than one-half of the volumetric mean particle size of a toner. A charge opposite in polarity to a charge to be deposited on the toner is deposited on the dielectric portions. The dielectric portions, or recesses, each has a width more than three times as great as the volumetric mean particle size of the toner and a depth less than five times the volumetric particle size. The dielectric portions may be greater in height than the conductive portions and may be implemented as spiral grooves inclined more than 30 degrees relative to the axis of rotation of the developing roller. The developing roller may be moved at a higher linear velocity than a photoconductive drum.

Developing device for an image forming apparatus

Growing community of inventors

Kanagawa, Japan

Nobuhiro Shima