Ground plate for a photosensitive drum assembly
AssigneePentax Technologies Corporation
InventorEarl Charles Anderson, II
Life of this patent
Estimating the term…
Abstract
A ground plate for a photosensitive drum assembly including a planar member having a central portion and a plurality of legs extending from the central portion. Each of the legs includes at least one projection extending therefrom. The projections are configured to scratch the inner surface of a photosensitive drum to make electrical contact between the ground plate and the photosensitive drum. The ground plate also includes a central aperture including spring contacts for engagement with a ground pin.
Claims19
A ground plate for a photosensitive drum assembly, comprising:
- a substantially planar member, said substantially planar member including a central portion, and a plurality of legs extending from said central portion,
- each of said legs including a straight edge forming a portion of the outer periphery of the substantially planar member, said straight edges configured parallel to each other;
- at least one projection extending from each of said plurality of legs, each of said projections being configured to scratch an inner surface of a photosensitive drum in the photosensitive drum assembly to make electrical contact between said ground plate and the photosensitive drum.
A photosensitive drum assembly for an image forming device, said photosensitive drum assembly comprising:
- a photosensitive drum, said drum including a photosensitive layer on an outer surface thereof,
- a first end cap and a second end cap, said end caps being configured to fit into the ends of said drum;
- and
- a ground plate fixed to an inner face of said first end cap, said ground plate including a substantially planar member, said substantially planar member including a central portion, and a plurality of legs extending from said central portion, each of said legs including a straight edge forming a portion of the outer periphery of the substantially planar member, said straight edges configured parallel to each other;
- at least one projection extending from each of said plurality of legs, each of said projections being configured to scratch an inner surface of said photosensitive drum to make electrical contact between said ground plate and said photosensitive drum.
An image forming device comprising:
- a printer engine;
- and
- a photosensitive drum assembly mounted in said printer engine, said photosensitive drum assembly including:
- a photosensitive drum including a photosensitive layer on an outer surface thereof;
- a first end cap and a second end cap, said end caps being configured to fit into the ends of said drum;
- and
- a ground plate fixed to an inner face of said first end cap, said ground plate including a substantially planar member, said substantially planar member including a central portion, and a plurality of legs extending from said central portion, each of said legs including a straight edge forming a portion of the outer periphery of the substantially planar member, said straight edges configured parallel to each other;
- at least one projection extending from each of said plurality of legs, each of said projections being configured to scratch an inner surface of said photosensitive drum to make electrical contact between said ground plate and said photosensitive drum.
A ground plate for a photosensitive drum assembly, comprising:
- a substantially planar member, said substantially planar member including a central portion, and a plurality of legs extending from said central portion,
- at least one projection extending from each of said plurality of legs, each of said projections being configured to scratch an inner surface of a photosensitive drum in the photosensitive drum assembly to make electrical contact between said ground plate and the photosensitive drum;
- wherein said substantially planar member includes a two piece construction.
Dependencies are inferred from the claim text.