Samsung Electronics Co., Ltd.

Sam-seok Choi

Dong-hoon Park

Myoung-su Baek

Jeong-hun Pang

Seung-gweon Lee

Seung-Yoon Lee

Jean-Man Sur

Jong-moon Eun

Jin-Hyung Lee

Hyung-Won Yoon

Disclosed is a toner cartridge including a gear for rotating a rotatable member, for example, an agitator, of the toner cartridge and a support for rotatably supporting the gear. The gear includes a gear body, a coupling portion coupled to an end of the rotational shaft of the rotating member and a first position determining portion. The support includes a second position determining portion having a shape that corresponds to the shape of the first position determining portion so that the first and second position determining portions are capable of being coupled to each other. The gear is rotatable with the first and second position determining portions coupled to each other.

Toner cartridge and image forming apparatus including the same

A developing cartridge and a developing device capable of preventing developer leak which may occur during replacement of a developer containing unit, and an image forming apparatus having the same are provided. The image forming apparatus includes an image forming apparatus body where a transfer path for a printing medium is formed, and a developing device for developing a visible image. The developing device may include, for example, developing cartridge, a developer containing unit, which contains a supply of developer therein, and which is detachably disposed in the developing cartridge to form a developer transfer path fluidly communicating with the developing cartridge, and a shutter unit which closes the developer transfer path when the developer containing unit is removed from the developing cartridge.

Developer cartridge, developing device, and image forming apparatus having the same

A toner cartridge, a developing device, and an image forming apparatus, in which a memory is provided in the cartridge to be accessible by an image forming apparatus are disclosed. The image forming apparatus includes a developing device detachably attached to the body the image forming apparatus, and a toner cartridge detachably disposed in the developing cartridge, which includes a memory accessible from a surface of the toner cartridge exposed outside the developing cartridge when the toner cartridge is installed in the developing cartridge.

Memory, toner cartridge, developing device and image forming apparatus having the same

The present general inventive concept relates to a toner cartridge locking apparatus, which includes a rotation handle rotatably disposed at a first end of a toner tank, and having a locking blade formed at an outer circumferential surface thereof, and a hooking portion disposed at a developing unit to which the toner tank is mounted, wherein when the rotation handle is rotated in a predetermined angle, the locking blade of the rotation handle is inserted into the hooking portion.

Toner cartridge locking apparatus, image forming apparatus having the same, toner cartridge, and mounting and dismounting method for a toner cartridge

A toner supplying apparatus includes a toner tank to hold toner, a supplying part that protrudes into the toner tank to discharge the toner from the toner tank, and a toner agitating member to rotate within the toner tank to agitate the toner in almost an entire inner space of the toner tank, including a location on a top surface of the supplying part that projects into the toner tank.

Toner agitator, toner supplying apparatus including the same, and method of supplying toner

A toner cartridge has a control board mounted therein and an electrophotographic image forming apparatus using the same. The toner cartridge includes a toner tube having a mounting part on which a control board is mounted, a control board cover for covering the mounting part to mount the control board therein, and a sealing cover for sealing the toner tube.

Toner cartridge having control board mounted therein and electrophotographic image forming apparatus using the same

A toner cartridge horizontally installed in an electrophotographic printer having a photoreceptor drum where an electrostatic latent image is formed by charging and exposure, and contributing to toner supply and development by being fixedly coupled to in the electrophotographic printer. The toner cartridge includes a housing filled with toner of a predetermined color, a development roller rotatably installed on the housing to face the photoreceptor drum and to supply the toner to the photoreceptor drum to develop an image by a difference in electrical potential, a supply roller rotatably installed in the housing in contact with the development roller and to control the toner to adhere to the development roller, and a guide member coupled to the housing to be disposed under the supply roller and to guide supply of the toner. When a diameter of the development roller is D, the diameter Dsatisfies an inequality that 10.4&#x2266;D&#x2266;22.1 mm.

Toner cartridge and electrophotographic printer employing the same

An electrophotographic color image forming apparatus is provided having a plurality of developing units that respectively include developer rollers to develop an electrostatic latent image formed on a photoconductor by applying toner to the electrostatic latent image. A plurality of toner cartridges respectively include agitators and are arranged in a lengthwise direction of the developer roller to supply toner to the developing units. A plurality of shafts are connected to each other through a universal joint to transmit rotational motion of a driving motor to the agitators.

Electrophotographic color image forming apparatus

A waste toner transporting apparatus which transfers waste toner removed from a photosensitive drum to a waste toner housing is provided. The waste toner transporting apparatus includes a toner transporting plate arranged substantially above a cleaning blade. A transporting member is installed at one end of the toner transporting plate and has a cam follower arranged on an opposite side of the toner transporting plate. A driving cam contacts the cam follower and converts rotational motion into linear reciprocating motion to enable the toner transporting plate to reciprocate on the cleaning blade.

Waste toner transporting apparatus and toner cartridge having the same

A toner cartridge of an electrophotographic image forming apparatus. The toner cartridge of the electrophotographic image forming apparatus includes a developing roller that develops an electrostatic latent image formed on an outer circumferential surface of a photosensitive drum, a toner supplying roller that supplies toner onto the developing roller, a seal bracket that is installed above and apart from the toner supplying roller, an outer seal film including an end adhered to the seal bracket and the other end contacting an outer circumference of the developing roller, and an inner seal film that is adhered to an inner surface of the seal bracket so that an end of the inner seal film contacts an outer circumference of the supplying roller.

Toner cartridge used with an electrophotographic image forming apparatus

A developing cartridge is provided including a first frame on which a photosensitive drum is arranged, a second frame which is pivotably coupled to the first frame, and a developing roller which is coupled to the second frame. A pair of gap maintaining elements configured to facilitate maintenance of a constant developing gap are arranged on both ends of the developing roller. The developing roller and the pair of gap maintaining elements are arranged on the second frame to pivot in a direction opposite to a pivoting direction of the second frame.

Developing cartridge and electrophotographic image forming apparatus employing the same

A toner cartridge including a guide member that guides supplying operation of toner. The toner cartridge includes a housing, in which a toner of a predetermined color is filled, a first coupling portion and a second coupling portion within the housing that are formed at predetermined positions of an inner wall of the housing; a developing roller, part of which is exposed outside of the housing, installed rotatably on the housing to supply the toner to a photosensitive medium and to develop an image; a supplying roller that attaches the toner to the developing roller; and the guide member that guides the toner supply and is coupled to the first and second coupling portions. Both ends of the guide member are coupled to the first and second coupling portions such that the guide member is flexed when being installed in the housing.

Growing community of inventors

Suwon-si, South Korea

Sam-seok Choi