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US 8,559,848 B2Granted
Charging member assembly usable with body to be charged and charging apparatus for image forming apparatus
AssigneeSamsung Electronics Co., Ltd.
InventorsJi-Won Moon, Mi-Na You
Life of this patent
Estimating the term…
Abstract
Disclosed is a charging apparatus usable with an image forming apparatus that includes a body to be charged; a housing to rotatably support the body to be charged, a charging member to charge a surface of the body to be charged to a predetermined electric potential, a cleaning member to clean foreign materials remaining on the surface of the body to be charged, and a cleaning member supporting bracket disposed in the housing to support the cleaning member and the charging member.
Claims21
A charging apparatus usable with an image forming apparatus, comprising:
- a housing;
- a body to be charged rotatably supported in the housing;
- a charging member disposed on a charging roller shaft and adjacent the body to be charged, the charging member being configured to charge a surface of the body to be charged to an electrical potential;
- a cleaning member configured to clean the surface of the body to be charged;
- a cleaning member supporting bracket disposed in the housing and configured to support the cleaning member,
- wherein the charging member is supported by the cleaning member supporting bracket and a pair of charging member supporting holders, each comprising a plurality of contact plates each of which has a groove corresponding to an outside diameter of the charging roller shaft;
- a pair of elastic members, one in each charging member supporting holder, each disposed between the cleaning member supporting bracket and the charging member supporting holder;
- and
- a charging member cleaning roller disposed adjacent the charging member in a stationary charging member cleaning roller supporting bracket to remove contaminants from the charging member via rotational, non-translational movement,
- wherein the plurality of contact plates is arranged to be parallel and spaced apart from each other, and the groove formed in each of the plurality of contact plates is in contact with the charging roller shaft.
7 more elements
A charging apparatus usable with an image forming apparatus, comprising:
- a housing;
- a body to be charged movably supported in the housing;
- a charging member disposed on a charging roller shaft and adjacent the body to be charged, the charging member being configured to charge a surface of the body to be charged to an electrical potential, and the charging roller shaft having rigid portions at opposite ends thereof;
- a cleaning member configured to remove unwanted material from the surface of the body to be charged;
- a supporting frame formed of a rigid body, the supporting frame being disposed in the housing to support the rigid portions of the charging member;
- a pair of charging member supporting holders, each comprising a plurality of contact plates each of which has a groove corresponding to an outside diameter of the charging roller shaft;
- a pair of elastic members, one in each charging member supporting holder, each disposed between the supporting frame and the charging member supporting holder;
- and
- a charging member cleaning roller disposed adjacent the charging member in a stationary charging member cleaning roller supporting bracket remove contaminants from the charging member via rotational, non-translational movement,
- wherein the plurality of contact plates is arranged to be parallel and spaced apart from each other, and the groove formed in each of the plurality of contact plates is in contact with the charging roller shaft.
7 more elements
A developing apparatus for an image forming apparatus including a housing accommodating therein a body to be charged, comprising:
- a charging member disposed on a charging roller shaft and adjacent the body to be charged, the charging member being configured to charge a surface of the body to be charged;
- a cleaning member configured to clean the surface of the body to be charged;
- left and right charging member supporting holders each configured to support respective one of opposite ends of the charging member, each of the charging member supporting holders comprising a plurality of contact plates each of which has a groove corresponding to an outside diameter of the charging roller shaft;
- a pair of elastic members, one in each charging member supporting holder, each disposed between a cleaning member supporting bracket and the charging member supporting holder;
- the cleaning member supporting bracket disposed in the housing, the cleaning member supporting bracket supporting thereon the cleaning member, the left charging member supporting holder, and the right charging member supporting holder;
- and
- a charging member cleaning roller disposed adjacent the charging member in a stationary charging member cleaning roller supporting bracket remove contaminants from the charging member via rotational, non-translational movement,
- wherein the plurality of contact plates is arranged to be parallel and spaced apart from each other, and the groove formed in each of the plurality of contact plates is in contact with the charging roller shaft.
5 more elements
Dependencies are inferred from the claim text.