Ricoh Company, Ltd.

Hiroki Orii

Hidetoshi Kami

Hideki Nakamura

Tadayoshi Uchida

Noboru Toriu

Ryohta Takahashi

Provided is an image forming apparatus including an image bearer capable of bearing a toner image, where a latent image is formed on the image bearer, a developing unit configured to develop the latent image formed on the image bearer with a toner, and a cleaning unit including a blade-shaped elastic body, where the elastic body is brought into contact with a surface of the image bearer, wherein a friction coefficient Ft/Fn between the image bearer and the elastic body is 0.85 or greater but 1.1 or less, and self-excited vibration WRFt(LMH) of shear force of the elastic body in a LMH band is 1.5 gf or greater but 3.5 gf or less.

Image forming apparatus

A photoconductor is used for an image-forming apparatus, and the photoconductor has a surface including irregularities having an arithmetic average roughness of 0.1 &#x3bc;m or more and 0.5 &#x3bc;m or less in a cycle length from 867 to 1,654 &#x3bc;m.

Growing community of inventors

Yamanashi, Japan

Hiroki Orii