Abstract: A developer cartridge includes a housing including a developer discharger having a developer outlet, and a container extending from the developer discharger, a movable member located in the container and movable in a direction of changing a volume of the container, and a flexible containing member configured in a bag shape having at least one open end connected to a wall of the container and another end connected to the movable member.

Abstract: A developer cartridge includes a housing including a developer discharger having a developer outlet, and a container extending from the developer discharger, a movable member located in the container and movable in a direction of changing a volume of the container, and a flexible containing member configured in a bag shape having at least one open end connected to a wall of the container and another end connected to the movable member.

Abstract: An image forming apparatus includes a toner cartridge that has an inner shutter and an outer shutter and is attached to and detached from a main body through a door disposed on a main body. The outer shutter moves to a position in which toner is allowed to be discharged through a toner outlet of the toner cartridge when the toner cartridge is loaded into the main body, and the inner shutter moves to an open position in which the toner outlet is opened by being interlocked in a closing operation of the door after the toner cartridge is loaded into the main body.

Abstract: A photoreceptor cartridge and an image forming apparatus having the photoreceptor cartridge. The photoreceptor cartridge includes: a first assembly configured to include a first frame and a photoreceptor that is installed at the first frame; a second assembly configured to include a second frame that is detachably combined with the first frame and a cleaning unit that is installed at the second frame and cleans a surface of the photoreceptor; at least one first pressing member configured to press the cleaning unit to the photoreceptor; and at least one second pressing member configured to press the cleaning unit into an opposite direction to a direction in which the first pressing member presses the cleaning unit.

Abstract: A photoreceptor cartridge and an image forming apparatus having the photoreceptor cartridge. The photoreceptor cartridge includes: a first assembly configured to include a first frame and a photoreceptor that is installed at the first frame; a second assembly configured to include a second frame that is detachably combined with the first frame and a cleaning unit that is installed at the second frame and cleans a surface of the photoreceptor; at least one first pressing member configured to press the cleaning unit to the photoreceptor; and at least one second pressing member configured to press the cleaning unit into an opposite direction to a direction in which the first pressing member presses the cleaning unit.

Abstract: An image forming apparatus includes a body, a developing unit detachably installed within the body, and a body cover installed at one side of the body, to open or close an opening for installation of the developing unit. The developing unit includes a developing cartridge provided with a waste developing agent outlet, and a developing agent cartridge provided with a waste developing agent inlet. The waste developing agent outlet is closed by a second shutter member when the opening is opened. The waste developing agent inlet is closed by a first shutter member when the developing agent cartridge is separated from the developing cartridge. Accordingly, there is no leakage of waste developing agent during replacement of the developing cartridge or developing agent cartridge.

Abstract: An image forming apparatus includes a toner cartridge that has an inner shutter and an outer shutter and is attached to and detached from a main body through a door disposed on a main body. The outer shutter moves to a position in which toner is allowed to be discharged through a toner outlet of the toner cartridge when the toner cartridge is loaded into the main body, and the inner shutter moves to an open position in which the toner outlet is opened by being interlocked in a closing operation of the door after the toner cartridge is loaded into the main body.

Abstract: An image forming apparatus includes a body, a developing unit detachably installed within the body, and a body cover installed at one side of the body, to open or close an opening for installation of the developing unit. The developing unit includes a developing cartridge provided with a waste developing agent outlet, and a developing agent cartridge provided with a waste developing agent inlet. The waste developing agent outlet is closed by a second shutter member when the opening is opened. The waste developing agent inlet is closed by a first shutter member when the developing agent cartridge is separated from the developing cartridge. Accordingly, there is no leakage of waste developing agent during replacement of the developing cartridge or developing agent cartridge.

Abstract: A developing unit and an image forming apparatus including the developing unit. The image forming apparatus includes a main body, a developing cartridge detachably mounted at the main body while having a photosensitive body to form an electrostatic latent image, a toner cartridge detachably mounted at the main body to supply the developing cartridge with toner, at least one first position regulating member provided at the developing cartridge, the first position regulating member to regulate a relative position between the developing cartridge and the toner cartridge when the toner cartridge is mounted at the main body, and at least one second position regulating member provided at the toner cartridge, the second position regulating member to come into contact with the first position regulating member to regulate the relative position between the developing cartridge and the toner cartridge.

Abstract: A toner cartridge for use in an image forming apparatus which includes a paper feeding unit, a developing unit, a transfer unit, and a fixing unit is provided. The toner cartridge may include a fresh toner storage to accommodate therein a fresh toner before use, a waste toner storage to accommodate therein a waste toner introduced through a waste toner inlet, and a waste toner moving device to move the waste toner introduced through the waste toner inlet of the waste toner storage away from the waste toner inlet. The waste toner storage may be arranged under the fresh toner storage in a manner in which an upper portion of the waste toner storage may be formed of a bottom of the toner storage.

Abstract: A developing agent container package unit includes a packing case, a developing agent container received inside the packing case and storing developing agent, and a supporting member to support the developing agent container so that the developing agent container is inclined with respect to one side surface of the packing case.

Abstract: An image forming apparatus including: a toner cartridge to store toner; a developer to develop an image on a printing medium using the toner from the toner cartridge; and a waste toner container to store waste toner removed from the developer, wherein the waste toner container includes: a first transporting unit provided near a waste toner inlet; and a second transporting unit provided at a point where the waste toner transported by the first transporting unit falls to transport the waste toner to a farthest point from the waste toner inlet.

Abstract: An image forming apparatus includes a toner cartridge that has an inner shutter and an outer shutter and is attached to and detached from a main body through a door disposed on a main body. The outer shutter moves to a position in which toner is allowed to be discharged through a toner outlet of the toner cartridge when the toner cartridge is loaded into the main body, and the inner shutter moves to an open position in which the toner outlet is opened by being interlocked in a closing operation of the door after the toner cartridge is loaded into the main body.

Abstract: A developing unit capable of dispersing a pressure of developer used therein includes a developer housing to contain the developer and a blocking member to divide the developer housing into a first section and a second section, the second section including a developing member disposed therein to transfer the developer onto a photosensitive medium and to store the developer, the blocking member being detachably mounted in the developing unit. When the blocking member is detached from the developing unit, the first section is connected to the second section, so that the pressure of developer inside the developer housing can be spread evenly.

Abstract: A developing unit capable of dispersing a pressure of developer used therein includes a developer housing to contain the developer and a blocking member to divide the developer housing into a first section and a second section, the second section including a developing member disposed therein to transfer the developer onto a photosensitive medium and to store the developer, the blocking member being detachably mounted in the developing unit. When the blocking member is detached from the developing unit, the first section is connected to the second section, so that the pressure of developer inside the developer housing can be spread evenly.

Abstract: A developing agent container package unit includes a packing case, a developing agent container received inside the packing case and storing developing agent, and a supporting member to support the developing agent container so that the developing agent container is inclined with respect to one side surface of the packing case.

Abstract: An image forming apparatus including: a toner cartridge to store toner; a developer to develop an image on a printing medium using the toner from the toner cartridge; and a waste toner container to store waste toner removed from the developer, wherein the waste toner container includes: a first transporting unit provided near a waste toner inlet; and a second transporting unit provided at a point where the waste toner transported by the first transporting unit falls to transport the waste toner to a farthest point from the waste toner inlet.

Abstract: A structure to maintain a steady rotation speed of an optical photoconductor in an electrophotographic image forming apparatus. The structure includes a frame; an optical photoconductor which has a cylindrical shape on an outer surface of which an electrostatic latent image is formed by an optical scan, the optical photoconductor comprising a looped protrusion protruding from an end portion in a lengthwise direction of the optical photoconductor and a rotation shaft installed to be capable of rotating with respect to the frame; a damper installed at an end of the optical photoconductor, the damper comprising a core having a through hole, through which the rotation shaft of the optical photoconductor passes, and a wing, which extends from an outer circumference of the core, contacts and presses an inner circumference of the looped protrusion; and a rotation preventing unit which prevents the damper from rotating depending on rotation of the optical photoconductor.