Konica Minolta Business Technologies, Inc.

Tetsuo Sano

Ichiro Demizu

Yohei Nakade

Junpei Shouno

Yuusuke Okuno

Hirofumi Nakagawa

Yoshikazu Aoki

Eiichi Yoshida

Takuya Okada

Izumi Mukoyama

Susumu Sudo

Disclosed are a heating fixing belt and a fixing device by which good long-term durability is achieved, and a process for forming the heating fixing belt. The heating fixing belt comprises a resistance heating layer formed of a resin in which at least a conductive substance is dispersed, a parting layer laminated on the resistance heating layer and a pair of electrodes for supplying electric power to the resistance heating layer, which are respectively stacked and provided on both end portions of the resistance heating layer in such a manner that at least parts thereof come into contact with the resistance heating layer, wherein the electrodes are each composed of a metal mesh sheet. In the heating fixing belt, the metal mesh sheet forming the electrode preferably has an aperture ratio of 10 to 60.

Heat fixing belt with metal mesh electrodes, a fixing device using the belt and a method for making the belt

A cleaning device for an intermediate transferring member, comprising:

Cleaning device for intermediate transferring member and image-forming apparatus equipped with the same

Cleaning device for intermediate transferring member and image-forming apparatus

A developing device has a developer bearing member, a housing adapted to accommodate a developer, and a supply roller adapted to supply the developer within the housing for the developer bearing member. The supply roller has an outer circumferencial foam layer made of resin or rubber. The foam layer has an air permeability of 150-200 ml/cm/s, a hardness of 50-200 N, and an average cell density of 20-40 per 25 mm width.

Image forming apparatus with toner supplying roller

A developing roller has a surface layer composed of a binder resin having an SP value in the range of 7.5 to 9.0, and roughness-imparting particles made from a resin having an SP value that has a difference from the SP value of the resin of 2 or less in the absolute value thereof. The roughness-imparting particles are dispersed in the binder resin. A developing device is provided with the developing roller. An image-forming apparatus is provided with the developing device equipped with the developing roller.

Developing roller having specific surface layer, developing device provided with the developing roller and image-forming apparatus provided with developing device equipped with the developing roller

An image forming apparatus has an electrostatic latent image bearing member capable of bearing an electrostatic latent image thereon, and a developer apparatus having a developer material for visualizing the electrostatic latent image into a visualized image. The developer apparatus includes a developer material bearing member, a housing adapted to accommodate a developer material, and a supply roller adapted to supply the developer material within the housing for the developer material bearing member. The supply roller has an outer circumferential foam layer. The foam layer is made of resin foam or rubber foam and has an air permeability of 5 ml/cm/s or less, a density of 50-200 kg/m, and a hysteresis loss ratio of 35-45%.

Image forming apparatus with developer supply roller

A developing roller for use in an image-forming apparatus includes a substrate, a silicone-based elastic layer formed on the substrate, and a surface-coating layer formed at the outermost surface. The surface-coating layer has a thickness of not less than 3.5 &#x3bc;m with an amount of detection of silicon-atom-containing substances on the surface of the developing roller being set to not more than 2.5, and a developing device equipped with the developing roller.

Developing roller for use in image-forming apparatus and developing device equipped with the same

A developing roller for use in an image-forming apparatus, the roller including:

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Toyokawa, Japan

Tetsuo Sano