Ricoh Company, Ltd.

Anzen Motor Car Co., Ltd.

Kiyoshi Masuda

Yutaka Fukuda

Yukio Higuchi

Toshihiko Chisaki

Katsuichi Ohta

Hirofumi Yamanami

Kenji Seki

Satomi Mochizuki

A method and system for measuring sensitivity of an electrophotography photoconductor. The sensitivity is determined using changing information of the surface potential of the photoconductor and an exposure amount information which is precisely obtained by measuring relative illuminance on the surface of the photoconductor with a photo-sensor disposed between a shutter performing ON/OFF operations of light and the photoconductor while the photoconductor is exposed to light. Then, a changing curve of digitized measured relative illuminance is integrated from a rising point thereof to a point thereof at a time when the surface potential information becomes a specified value.

Method and system for measuring sensitivity of electrophotographic

A wheel examining system for examining a two-axle or three-axle vehicle is provided. The wheel examining system includes a wheel examining apparatus for examining a wheel in particular as to its alignment. A wheel guide apparatus is provided for guiding a wheel into a predetermined examining site. The wheel guide apparatus includes a plurality of rollers arranged in different levels and orientations so that the wheel may be smoothly and properly guided into the examining site. A three-axle vehicle examining system includes three different examining sections one of which may be shifted in a transverse direction to determine a discrepancy in alignment of three axles. A wheel examining apparatus includes a roller clamp unit which includes left-hand contact rollers and right-hand contact rollers which may be brought into the opposite sides of a wheel. A pair of left-hand and right-hand angle detectors are provided in association with the left-hand and right-hand contact rollers to thereby detect the orientations of the opposite sides of a wheel independently. A floating support structure constructed by using a plurality of linear motion guide units is also provided.

Wheel examining apparatus

This invention relates to a repeatedly usable photosensitive material for electrophotography, comprising an electroconductive substrate, a photosensitive layer and an intermediate layer located between said electroconductive substrate and said photosensitive layer, characterized in that said intermediate layer comprises an electroconductive polymer and an inorganic white pigment.

Layered photosensitive material for electrophotography

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Numazu, Japan

Kiyoshi Masuda