Mitsubishi Chemical America, Inc.

Other

Rudolf E Cais

Dennis C Working

Santanu Debnath

Shinichi Suzuki

William D Himes

Jon Peter Zogg

William F Niederstadt

Frederick W Gerriets

Moto Makino

A coupling arrangement with an optical photoconductive drum including a drum interior surface having an electrically resistive coating surrounding and extending along a longitudinal axis. The drum interior surface includes first and second open ends. A flange including a flange interior surface is disposed in the first open end. A flange exterior surface is disposed outside of the first open end. A flange side surface connects the flange interior and exterior surface. A grounding plate is disposed in the first open end and includes an outwardly extending contact that contacts the drum interior surface and removes a portion of the electrically resistive coating to achieve electrical connection with the drum interior surface and to hold the flange.

Coupling arrangement including optical photoconductive drum and grounding plate

Electrophotographic photosensitive bodies which comprise a photosensitive layer on a conductive support, and which contain a wax having an ester group in their outermost layer, exhibit excellent durability and improved wear and printing resistance, without sacrificing their photosensitizability properties, such as chargeability and sensitivity, or ease and quality of application.

Electrophotographic photosensitive bodies

A device and method for reducing noise and/or vibration in an image forming apparatus. In a preferred form, an insert is disposed inside of a photosensitive drum, and the insert is a hollow tubular member including first and second members having surfaces oblique with respect to a longitudinal axis of the photosensitive drum, wherein the surfaces each face each other. The first and second members are moved relative to each other in order to change the overall diameter of the insert, such that upon insertion, the overall diameter can be made smaller than the inner diameter of the drum, and after insertion, the overall diameter of the insert can be increased such that the outer surface of the insert comes into contact with an inner surface of the drum. As such, the insert can be anchored to the interior of the drum without using adhesive and can be easily removed for recycling purposes.

Noise reducing device for photosensitive drum of an image forming

A device and method for reducing noise and/or vibration in an image forming apparatus. In a preferred form, an insert is disposed inside of a photosensitive drum, and the insert is a hollow tubular member having at least one slot extending through the tubular member so that the tubular member is resilient in a radial direction. The slot can be, for example, helical, so that the insert is a helical coil, with an outer diameter of the helical coil (in an uncompressed state) larger than an inner diameter of the photosensitive drum. The insert is radially compressed when it is inserted into the drum, so that the tendency of the insert to expand holds the insert in place within the drum. The insert reduces noise and vibration which can occur during operation of the photosensitive drum, and can also provide a supportive effect for the drum since the insert is urged in a radially outward direction against the inner surface of the drum.

Organic photoconductive imaging receptors in which the charge transport layer contains, as a binder, a copolycarbonate of 1,1-bis-(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane and 2,2-bis-(4-hydroxylphenyl)propane exhibit excellent wear resistance.

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Virginia Beach, VA, United States of America

Rudolf E Cais