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US 6,647,231 B2Granted
Electrically conductive member and image forming apparatus equipped with the same
AssigneeFuji Xerox Co., Ltd.
InventorEiji Funabashi
Life of this patent
Estimating the term…
Abstract
The present invention discloses: (1) an electrically conductive member including: a cylindrical base body; and electrically conductive powder sealed inside of the cylindrical base body in a substantially flowable state, or (2) an electrically conductive member including: a cylindrical base body; and electrically conductive powder sealed inside of the cylindrical base body so as not to completely fill the inner volume thereof, or (3) an electrically conductive member including: a cylindrical base body; and electrically conductive powder sealed inside of the cylindrical base body so as to fill only from 20 to 95% of the inner volume thereof. Moreover, the present invention discloses an image forming apparatus equipped with any of the electrically conductive members.
Claims38
An electrically conductive member, for use in an image forming apparatus, the electrically conductive member comprising:
- a cylindrical base body;
- and
- electrically conductive powder sealed inside of said cylindrical base body in a substantially flowable state.
An electrically conductive members, for use in an image forming apparatus, comprising:
- a cylindrical base body;
- and
- electrically conductive powder sealed inside of said cylindrical base body so a not to completely fill the inner volume thereof.
An electrically conductive members, for use in an image forming apparatus, comprising:
- a cylindrical base body;
- and
- electrically conductive powder sealed inside of said cylindrical base body at a fill fraction in the range of from 20 to 95% of the inner volume thereof.
An image forming apparatus comprising:
- an image bearing member;
- and charging means contacting said image bearing member to charge a surface of said image bearing member,
- wherein said charging means comprises an electrically conductive member including:
- a cylindrical base body;
- and electrically conductive powder sealed inside of said cylindrical base body in a substantially flowable state.
2 more elements
An image forming apparatus comprising:
- an image bearing member;
- and charging means contacting said image bearing member to charge a surface of said image bearing member, wherein said charging means comprising an electrically conductive member including:
- a cylindrical base body;
- and
- electrically conductive powder sealed inside of said cylindrical base body so as not to completely fill the inner volume thereof.
2 more elements
An image forming apparatus comprising:
- an image bearing member;
- and charging means contacting said image bearing member to charge a surface of said image bearing member, wherein said charging means comprising an electrically conductive member including:
- a cylindrical base body;
- and
- electrically conductive powder sealed inside of said cylindrical base body at a fill fraction in the range of from 20 to 95% of the inner volume thereof.
2 more elements
An image forming apparatus comprising:
- an image bearing member;
- and transfer means contacting said image bearing member to transfer a toner image on a surface thereof onto a transfer substrate,
- wherein said transfer means comprises an electrically conductive member including:
- a cylindrical base body;
- and electrically conductive powder sealed inside of said cylindrical base body in a substantially flowable state.
2 more elements
An image forming apparatus comprising:
- an image bearing member;
- and transfer means contacting said image bearing member to transfer a toner image on a surface thereof onto a transfer substrate,
- wherein said transfer means comprises an electrically conductive member including:
- a cylindrical base body;
- and electrically conductive powder sealed inside of said cylindrical base body so as not to fill the inner volume thereof to the full.
2 more elements
An image forming apparatus comprising:
- an image bearing member;
- and transfer means contacting said image bearing member to transfer a toner image on a surface thereof onto a transfer substrate,
- wherein said transfer means comprises an electrically conductive member including a cylindrical base body;
- and electrically conductive powder sealed inside of said cylindrical base body at a fill fraction in the range of from 20 to 95% of the inner volume thereof.
1 more element
An image forming apparatus comprising:
- an image bearing member;
- charging means contacting said image bearing member to charge a surface thereof;
- first transfer means contacting said image bearing member to transfer a toner image on the surface thereof to an intermediate transfer member;
- and second transfer means contacting said intermediate transfer member to transfer a toner image on a surface thereof to a transfer substrate,
- wherein at least one of said charging means, said first transfer means and said second transfer means comprises an electrically conductive member including:
- a cylindrical base body;
- and electrically conductive powder sealed inside of said cylindrical base body in a substantially flowable state.
4 more elements
An image forming apparatus comprising:
- an image bearing member;
- charging means contacting said image bearing member to charge a surface thereof;
- first transfer means contacting said image bearing member to transfer a toner image on the surface thereof to an intermediate transfer member;
- and second transfer means contacting said intermediate transfer member to transfer a toner image on a surface thereof to a transfer substrate,
- wherein at least one of said charging means, said first transfer means and said second transfer means comprises an electrically conductive member including:
- a cylindrical base body;
- and electrically conductive powder sealed inside of said cylindrical base body so as not to fill the inner volume thereof to the full.
4 more elements
An image forming apparatus comprising:
- an image bearing member;
- charging means contacting said image bearing member to charge a surface thereof;
- first transfer means contacting said image bearing member to transfer a toner image on the surface thereof to an intermediate transfer member;
- and second transfer means contacting said intermediate transfer member to transfer a toner image on a surface thereof to a transfer substrate,
- wherein at least one of said charging means, said first transfer means and said second transfer means comprises an electrically conductive member including a cylindrical base body;
- and electrically conductive powder sealed inside of said cylindrical base body at a fill fraction in the range of from 20 to 95% of the inner volume thereof.
3 more elements
An image forming apparatus comprising:
- an image bearing member;
- charging means contacting said image bearing member to charge a surface thereof;
- first transfer means contacting said image bearing member to transfer a toner image on the surface thereof to an intermediate transfer member;
- and second transfer means contacting said intermediate transfer member to transfer a toner image on a surface thereof to a transfer substrate,
- wherein at least one of said charging means, said first transfer means and said second transfer means comprises an electrically conductive member including:
- a cylindrical base body;
- and electrically conductive powder sealed inside of said cylindrical base body in a substantially flowable state and
- said electrically conductive powder includes magnetic powder,
- said image forming apparatus further comprising:
- magnetic field forming means forming a magnetic field in which said electrically conductive powder is attracted to said image bearing member or said intermediate transfer member.
7 more elements
An image forming apparatus including:
- an image bearing member;
- charging means contacting said image bearing member to charge a surface thereof;
- first transfer means contacting said image bearing member to transfer a toner image on the surface thereof to an intermediate transfer member;
- and second transfer means contacting said intermediate transfer member to transfer a toner image on a surface thereof to a transfer substrate,
- wherein at least one of said charging means, said first transfer means and said second transfer means comprises an electrically conductive member including:
- a cylindrical base body;
- and electrically conductive powder sealed inside of said cylindrical base body so as not to fill the inner volume thereof to the full and
- said electrically conductive powder includes magnetic powder,
- said image forming apparatus further including:
- magnetic field forming means forming a magnetic field in which said electrically conductive powder is attracted to said image bearing member or said intermediate transfer member.
7 more elements
An image forming apparatus comprising:
- an image bearing member;
- charging means contacting said image bearing member to charge a surface thereof;
- first transfer means contacting said image bearing member to transfer a toner image on the surface thereof to an intermediate transfer member;
- and second transfer means contacting said intermediate transfer member to transfer a toner image on a surface thereof to a transfer substrate,
- wherein at least one of said charging means, said first transfer means and said second transfer means comprises an electrically conductive member including a cylindrical base body;
- and electrically conductive powder sealed inside of said cylindrical base body at a fill fraction in the range of from 20 to 95% of the inner volume thereof and
- said electrically conductive powder includes magnetic powder,
- said image forming apparatus further including:
- magnetic field forming means forming a magnetic field in which said electrically conductive powder is attracted to said image bearing member or said intermediate transfer member.
6 more elements
An image forming apparatus comprising:
- an image bearing member;
- first transfer means contacting said image bearing member to transfer a toner image on the surface thereof to an intermediate transfer member in the shape of an endless belt;
- and second transfer means contacting said intermediate transfer member to transfer a toner image on a surface thereof to a transfer substrate,
- wherein said second transfer means comprises an electrically conductive member including:
- a cylindrical base body;
- and electrically conductive powder sealed inside of said cylindrical base body in a substantially flowable state and
- said electrically conductive powder includes magnetic powder,
- said image forming apparatus further comprising:
- magnetic field forming means forming a magnetic field in which said electrically conductive powder is attracted to a support member provided at a position opposite said second transfer means on an inner peripheral section of said intermediate transfer member.
6 more elements
An image forming apparatus comprising:
- an image bearing member;
- first transfer means contacting said image bearing member to transfer a toner image on the surface thereof to an intermediate transfer member in the shape of an endless belt;
- and second transfer means contacting said intermediate transfer member to transfer a toner image on a surface thereof to a transfer substrate,
- wherein said second transfer means comprises an electrically conductive member including:
- a cylindrical base body;
- and electrically conductive powder sealed inside of said cylindrical base body so as not to completely fill the inner volume thereof and
- said electrically conductive powder includes magnetic powder,
- said image forming apparatus further comprising:
- magnetic field forming means forming a magnetic field in which said electrically conductive powder is attracted to a support member provided at a position opposite said second transfer means on an inner peripheral section of said intermediate transfer member.
6 more elements
An image forming apparatus comprising:
- an image bearing member;
- first transfer means contacting said image bearing member to transfer a toner image on the surface thereof to an intermediate transfer member in the shape of an endless belt;
- and second transfer means contacting said intermediate transfer member to transfer a toner image on a surface thereof to a transfer substrate,
- wherein said second transfer means comprises an electrically conductive member including a cylindrical base body;
- and electrically conductive powder sealed inside of said cylindrical base body at a fill fraction in the range of from 20 to 95% of the inner volume thereof and
- said electrically conductive powder includes magnetic powder,
- said image forming apparatus further comprising:
- magnetic field forming means forming a magnetic field in which said electrically conductive powder is attracted to a support member provided at a position opposite said second transfer means on an inner peripheral section of said intermediate transfer member.
5 more elements
Dependencies are inferred from the claim text.