Hitachi, Ltd.

Tokyo Rope Mfg. Co., Ltd.

Hitachi Building Systems Co., Ltd.

Tomio Hayano

Tetsuro Akasaki

Shoji Ukei

Kazuhiro Wakamatsu

Isamu Terashima

Junichi Matsuno

Hiroyuki Tadokoro

Atsuya Fujino

Masaru Nakano

Toshiyuki Moriya

Takashi Sekiya

Ippei Furukawa

Takashi Teramoto

Naoaki Noguchi

Taichi Maeda

Shizuo Tsuruta

Tomohisa Hayakawa

Daisuke Asai

Takayuki Hagiwara

Tomoharu Ohnishi

In an elevator wire ropestructured by twisting a plurality of schenkels, each schenkelbeing formed by twisting a plurality of strands, each strandbeing formed by twisting a plurality of fine steel wiresto, the interior of the wire rope being filled with a resin, and the surface of the wire rope being covered with a resin, wherein the direction in which the fine steel wirestoand the strandsare twisted and the direction in which the schenkelsare twisted are mutually opposite, and the diameter dof the inscribed circle of the plurality of twisted schenkelsis smaller than the diameter dof the schenkel

Elevator wire rope

An image forming apparatus in which a distance along a photosensitive belt from a cleaning unit to an exposing position is set to be shorter than a distance from the rear end of a print image to the front end of the following print image, so that a latent image is not formed by an exposing unit when a joint of the photosensitive belt passes the cleaning unit.

Image forming apparatus with reduced latent image vibration caused by photosensitive belt joint

Engaging shafts and are protruded coaxially with a drive roller and driven rollers around which a photosensitive belt is rotatably wrapped inside a photosensitive belt casing, and are positioned in engagement with an engaging groove in a side plate of a frame and with a curved surface formed in a guide rail that guides the photosensitive belt casing. This enables the photosensitive belt to be precisely opposed to an intermediate transfer drum and to developing devices, and to be easily attached to and positioned in the apparatus or detached therefrom.

Image forming apparatus with positioning member of frame engaging shaft

The present invention relates to a desk-top type color electro-photographic apparatus which is easy in use, small in size and light in weight, wherein maintenance such as changing its photosensitive member can be performed by a user and color adjustment is performed with high accuracy of less than 100 .mu.m. Developing units for four colors are placed in a rank, a single endless-belt-shaped photosensitive member being placed below them to form an approximately oval shape, the photosensitive member being touched with a transfer member on its major axis side to transfer each color of images. In addition to this, the photosensitive member is employed a cartridge type for easiness of user's maintenance and constructed such that highly accurate positioning between the body of apparatus and the cartridge can be performed. Effect of the eccentricity of pulleys is decreased by means of making the pulleys wrapped with the photosensitive member have the identical diameter and making the diameter of the transfer member integer times as large as that of the pulley.

Color electro-photographic apparatus with endless-belt-shaped

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Hitachi, Japan

Tomio Hayano