Utec Corporation LLC

Hiraoka H.i. Laboratory Co., Ltd.

Chiseki Yamaguchi

Naoya Hamada

Yuji Hiraoka

Tomohiro Kamitani

Shunsuke Umezawa

Naoki Moribe

Takuo Wariishi

A Faraday cage includes a casing structured by a first housing having a first outer cover made of a conductive material, and a first inner cover made of a conductive material, which is accommodated in the first outer cover and is electrically insulated from the first outer cover, and a second housing having a second outer cover made of a conductive material, which fits the first outer cover, and a second inner cover made of a conductive material, which is accommodated in the second outer cover and is electrically insulated from the second outer cover, the first and second housings being separable from each other; and a filter cartridge disposed inside the casing configured to be separable into two pieces, which accommodates therein a first filter for collecting fine particles sucked in from the outside the casing.

Faraday cage and device having same

Filter cartridge

Stable developing can be made with no inferior image, irrespective of variations in factors relating to the developing function, which affect the developing function, such as a variation in surrounding circumstance, surface potentials of an electrostatic latent image carrier medium and a developer carrier medium or the like. When surface potential sensors serving as a means for detecting a factor relating to the developing function detect variations in the surface potentials of latent image carrier medium or developer carrier medium, voltages applied from power sources, to conductivity regulating member, developer carrier medium and electrically conductive developer supply member are controlled so that the volume of the developer sticking to the electrostatic latent image carrier medium is maintained to be constant. The developer carrier medium transfers a thin layer of the developer to a developing section opposing a photosensitive body and the developer is shifted in an electric field between the surface potential of the electrostatic latent image section on the photosensitive body and the surface potential of the developer carrier medium so as to effect developing.

Developer unit utilizing a non-magnetic single component developer

Growing community of inventors

Saitama, Japan

Chiseki Yamaguchi