Abstract: A developing device that attaches/detaches to/from a main body of an image forming apparatus includes a first frame that supports a photosensitive member, a second frame that supports a developing roller, and a connecting bracket in which a fixed supporter couples to a side portion of the first frame, a flexible supporter that couples to a side portion of the second frame, and an elastic arm connecting the fixed supporter and the flexible supporter to each other to provide an elastic force that may elastically bias the developing roller toward the photosensitive member, are integrally formed.

Abstract: A developing roller including a housing containing toner; and a developing roller installed in the housing and supplies the toner to an electrostatic latent image formed on a photoconductor, the developing roller including a cylindrical unit in the form of a hollow pipe and a power transmission unit connected to one end of the cylindrical unit and connected to a power transmission member for rotating the developing roller. Both ends of the cylindrical unit are supported by the housing and the power transmission unit is not restricted by the housing. Both ends of the cylindrical unit are supported by the housing and the power transmission unit is not restricted by the housing.

Abstract: A charging apparatus including a charging tube which has an outer surface contacting a photoconductive medium and electrically charges a surface of the photoconductive medium, a shaft which is disposed in the charging tube and to which a charging voltage is applied, and a conductive member which is connected to the shaft and contacts an inner surface of the charging tube. A friction coefficient between the conductive member and the inner surface of the charging tube may be less than a friction coefficient between the photoconductive medium and the outer surface of the charging tube, so that a slip phenomenon of the charging tube is prevented.

Abstract: A developing device that attaches/detaches to/from a main body of an image forming apparatus includes a first frame that supports a photosensitive member, a second frame that supports a developing roller, and a connecting bracket in which a fixed supporter couples to a side portion of the first frame, a flexible supporter that couples to a side portion of the second frame, and an elastic arm connecting the fixed supporter and the flexible supporter to each other to provide an elastic force that may elastically bias the developing roller toward the photosensitive member, are integrally formed.

Abstract: An image forming apparatus includes a photoconductor, a light scanning unit to irradiate light corresponding to image information, to the photoconductor so as to form an electrostatic latent image, and a developing unit arranged adjacent to an optical path of the light emitted from the light scanning unit and serving to feed developer to the photoconductor on which the electrostatic latent image is formed so as to form a visible image.

Abstract: A developing roller including a housing containing toner; and a developing roller installed in the housing and supplies the toner to an electrostatic latent image formed on a photoconductor, the developing roller including a cylindrical unit in the form of a hollow pipe and a power transmission unit connected to one end of the cylindrical unit and connected to a power transmission member for rotating the developing roller. Both ends of the cylindrical unit are supported by the housing and the power transmission unit is not restricted by the housing. Both ends of the cylindrical unit are supported by the housing and the power transmission unit is not restricted by the housing.

Abstract: An image forming apparatus, a developing agent container and a controlling method of the same that improves a supply rate of developing agent from a developing agent container to a developing device that provides the developing agent to an image carrier.

Abstract: A charging apparatus including a charging tube which has an outer surface contacting a photoconductive medium and electrically charges a surface of the photoconductive medium, a shaft which is disposed in the charging tube and to which a charging voltage is applied, and a conductive member which is connected to the shaft and contacts an inner surface of the charging tube. A friction coefficient between the conductive member and the inner surface of the charging tube may be less than a friction coefficient between the photoconductive medium and the outer surface of the charging tube, so that a slip phenomenon of the charging tube is prevented.

Abstract: A developing cartridge includes an image receptor which spreads developer on a printing medium, a developer storing part which stores a plurality of developers having a different material property and a different supplying order according to the concerned material property, and a developer feeding unit which sequentially transfers each of the developers to the image receptor according to the supplying order.

Abstract: An image forming apparatus includes a photoconductor, a light scanning unit to irradiate light corresponding to image information, to the photoconductor so as to form an electrostatic latent image, and a developing unit arranged adjacent to an optical path of the light emitted from the light scanning unit and serving to feed developer to the photoconductor on which the electrostatic latent image is formed so as to form a visible image.

Abstract: An image forming apparatus, a developing agent container and a controlling method of the same that improves a supply rate of developing agent from a developing agent container to a developing device that provides the developing agent to an image carrier.

Abstract: A developing cartridge includes an image receptor which spreads developer on a printing medium, a developer storing part which stores a plurality of developers having a different material property and a different supplying order according to the concerned material property, and a developer feeding unit which sequentially transfers each of the developers to the image receptor according to the supplying order.

Abstract: A developing unit and an image forming apparatus includes an image carrier, a developer container to contain a developer, a developer carrier to transfer the developer of the developer container to the image carrier, support brackets, fixed to the developer container, to rotatably support the developer carrier, frames to rotatably support the image carrier; and a hinge shaft fixed to each of the support brackets and supported by the frames.