Abstract: The present invention relates to a positive electrode active material and a lithium secondary battery including the same, and more particularly, to a bimodal-type positive electrode active material including a first lithium composite oxide, which is a small particle, and a second lithium composite oxide, which is a large particle, these particles having different particle diameters, wherein the positive electrode active material makes it possible to prevent deterioration in electrochemical properties and stability thereof, which are generated due to non-uniform formation of a coating layer at least partially coating surfaces of the small and large particles, a positive electrode including the positive electrode active material, and a lithium secondary battery using the same.

Abstract: A semiconductor package includes a redistribution substrate having a first side and an opposite second side. A plurality of redistribution patterns are in the redistribution substrate, and a semiconductor chip is on the first side of the redistribution substrate. A plurality of metal pillars are positioned around and spaced apart from a periphery of the semiconductor chip and are connected to the redistribution patterns. A plurality of solder balls are on the second side of the redistribution substrate. Each of the metal pillars includes a third side facing the first side of the redistribution substrate, and an opposite fourth side. The fourth side has a square or octagonal shape in plan view.

Abstract: A button device for an electronic device is provided including a frame part including a conductive material, a button part movably coupled to the frame part, an inner conductive part which is disposed in the button part to be moved with the button part and receives electrostatic energy caused by an electrostatic capacitance of the frame part, a support part coupled to the frame part to elastically support the button part, and an adhesive conductive part which is coupled to the frame part, is bonded to a touch panel unit, and comes into contact with the inner conductive part to transfer the electrostatic energy of the inner conductive part to the touch panel unit when the button part moves.

Abstract: Provided is an operating device comprising: an operation part which is inserted into an insertion hole portion of a glass part and has a locking protrusion portion having a protruding shape on the side surface thereof; and a locking rotation part which is disposed in a position opposite to the side surface of the operation part so as to allow or lock the movement of the locking protrusion portion, the locking rotation part comprising: a frame part having an inner hole portion into which the operation part is inserted; and a hollow hole part rotatably disposed in the frame part and communicating with the inner hole portion.

Abstract: Provided is an operating device comprising: an operating part for receiving an operating signal; a frame part having an inner hole part into which the operating part is inserted; a lock part rotatably provided to the frame part, and inserted into a side surface of the operating part by a rotating operation so as to restrict the movement of the operating part; and a moving part which is connected to the lock part and which moves in a linear direction or rotates the lock part by a rotating operation.

Abstract: A capacitive button interface device is provided and includes: a touchscreen; a capacitive button which can be attached to or detached from the touchscreen; an input device which can input an operation control command; a storage unit for storing setting information and a program for registering the capacitive button; and a control unit which detects information of the capacitive button attached to the upper surface of the touchscreen and stores or registers the information in the storage unit, and which detects an input of the capacitive button for which registration is complete and performs an operation corresponding to the capacitive button.

Abstract: Provided is an operating device comprising: an operation part which is inserted into an insertion hole portion of a glass part and has a locking protrusion portion having a protruding shape on the side surface thereof; and a locking rotation part which is disposed in a position opposite to the side surface of the operation part so as to allow or lock the movement of the locking protrusion portion, the locking rotation part comprising: a frame part having an inner hole portion into which the operation part is inserted; and a hollow hole part rotatably disposed in the frame part and communicating with the inner hole portion.

Abstract: Provided is an operating device comprising: an operating part for receiving an operating signal; a frame part having an inner hole part into which the operating part is inserted; a lock part rotatably provided to the frame part, and inserted into a side surface of the operating part by a rotating operation so as to restrict the movement of the operating part; and a moving part which is connected to the lock part and which moves in a linear direction or rotates the lock part by a rotating operation.

Abstract: An image forming apparatus and a transfer device disclosed herein are configured to move positions of transfer rollers to perform different modes of printing operation, such as black-and-white and color printing. The image forming apparatus may include a plurality of photosensitive bodies, on each of which an image may be formed, and a plurality of transfer units. Each transfer unit includes a transfer roller arranged to correspond to an associated one of the photosensitive bodies and an elastic member configured to press the transfer roller to the corresponding photosensitive body. The image forming apparatus further includes a slider configured to move along a linear direction. The slider is configured to cause at least one of the transfer rollers of the transfer units move away from the corresponding photosensitive body. The slider may be driven by a drive unit.

Abstract: An image forming apparatus includes a first belt roller which has a first roller shaft, a second belt roller which is disposed parallel with the first roller shaft and slidingly approaches and departs from the first roller shaft, and has a second roller shaft, a belt which is driven in circulation by the first belt roller and the second belt roller, an elastic tension member which elastically pushes the second belt roller to be separated from the first belt roller and a belt cleaning unit which is supported by the second roller shaft and is movable between a cleaning position contacting a surface of the belt and a stand-by position departed from the surface of the belt.

Abstract: An image forming apparatus capable of preventing meandering of a transfer belt. The image forming apparatus includes a main body, including an image forming unit; and a transfer device to transfer an image formed by the image forming unit to a printing medium. The transfer device includes a transfer belt; at least one pair of rollers to rotatably support the transfer belt; a supporting unit to rotatably support both ends of the pair of rollers; and an eccentric unit to movably support a first end of a first roller of the pair of rollers with respect to the supporting unit, the first end deviating from an axis of the first roller.

Abstract: Disclosed is an image forming apparatus with an improved structure for mounting or dismounting a cleaning device. An image forming unit includes an image carrier for transporting a developer image. A cleaning device includes a cleaning member to remove residual developer from the image carrier. The cleaning device is mounted or dismounted to/from the image forming unit by moving along a first direction and along a second direction. A first guide device includes a restraining unit to generally restrict movement of the cleaning device in the second direction when the cleaning device moves in the first direction, and a receiving unit to receive the restraining unit so as to allow the cleaning device to move in the second direction when desirable.

Abstract: An image forming apparatus and a transfer device disclosed herein are configured to move positions of transfer rollers to perform different modes of printing operation, such as black-and-white and color printing. The image forming apparatus may include a plurality of photosensitive bodies, on each of which an image may be formed, and a plurality of transfer units. Each transfer unit includes a transfer roller arranged to correspond to an associated one of the photosensitive bodies and an elastic member configured to press the transfer roller to the corresponding photosensitive body. The image forming apparatus further includes a slider configured to move along a linear direction. The slider is configured to cause at least one of the transfer rollers of the transfer units move away from the corresponding photosensitive body. The slider may be driven by a drive unit.

Abstract: Disclosed is an image forming apparatus with an improved structure for mounting or dismounting a cleaning device. An image forming unit includes an image carrier for transporting a developer image. A cleaning device includes a cleaning member to remove residual developer from the image carrier. The cleaning device is mounted or dismounted to/from the image forming unit by moving along a first direction and along a second direction. A first guide device includes a restraining unit to generally restrict movement of the cleaning device in the second direction when the cleaning device moves in the first direction, and a receiving unit to receive the restraining unit so as to allow the cleaning device to move in the second direction when desirable.

Abstract: An image forming apparatus includes a transfer belt having a light penetrating portion formed at one side of an edge portion of the transfer belt, a protection tape adhered to both sides of the edge portion to cover the light penetrating portion, and a guide member attached to one side of the protection tape. A plurality of rotation rollers drive the transfer belt in a caterpillar-type manner and include a guide groove formed at both ends of each rotation roller such that the guide member is inserted therein. A sensing body receives one end of the transfer belt to be positioned therein. A first sensing element and a second sensing element are disposed at both sides of the transfer belt such that a second distance from a transfer surface of the transfer belt to the second sensing element is longer than a first distance from the other surface of the transfer belt to the first sensing element.

Abstract: An apparatus and method of driving a transfer belt are disclosed. The apparatus and method comprise driving the transfer belt provided in an image forming apparatus by a predetermined distance when the transfer belt has been stopped for a predetermined time, and thus varying the contact portion with a plurality of rollers provided on the transfer belt. Image contamination due to deformation on the belt can be avoided. Additionally, because the rotation time of the driving source can be set to a predetermined time during the power-saving mode, power consumption can be minimized.

Abstract: An image forming apparatus capable of preventing meandering of a transfer belt. The image forming apparatus includes a main body, including an image forming unit; and a transfer device to transfer an image formed by the image forming unit to a printing medium. The transfer device includes a transfer belt; at least one pair of rollers to rotatably support the transfer belt; a supporting unit to rotatably support both ends of the pair of rollers; and an eccentric unit to movably support a first end of a first roller of the pair of rollers with respect to the supporting unit, the first end deviating from an axis of the first roller.

Abstract: An image forming apparatus includes a first belt roller which has a first roller shaft, a second belt roller which is disposed parallel with the first roller shaft and slidingly approaches and departs from the first roller shaft, and has a second roller shaft, a belt which is driven in circulation by the first belt roller and the second belt roller, an elastic tension member which elastically pushes the second belt roller to be separated from the first belt roller and a belt cleaning unit which is supported by the second roller shaft and is movable between a cleaning position contacting a surface of the belt and a stand-by position departed from the surface of the belt.

Abstract: An image forming apparatus includes a transfer belt onto which a toner image formed on an outer surface of a photosensitive medium is transferred. The transfer belt moves along a predetermined closed path while being supported by a plurality of rollers. A protection unit protects the transfer belt by being attached to at least one of an inner surface and an outer surface of a non-transferring region of the transfer belt. A control unit controls the transfer belt so that an overlapping part where the protection unit is attached to the transfer belt, and a seam part where two ends of the transfer belt are connected stops at a predetermined location after printing. The image forming apparatus substantially prevents partial loss of an image by preventing wrinkles in the transfer belt.

Abstract: An image forming apparatus includes a transfer belt having a light penetrating portion formed at one side of an edge portion of the transfer belt, a protection tape adhered to both sides of the edge portion to cover the light penetrating portion, and a guide member attached to one side of the protection tape. A plurality of rotation rollers drive the transfer belt in a caterpillar-type manner and include a guide groove formed at both ends of each rotation roller such that the guide member is inserted therein. A sensing body receives one end of the transfer belt to be positioned therein. A first sensing element and a second sensing element are disposed at both sides of the transfer belt such that a second distance from a transfer surface of the transfer belt to the second sensing element is longer than a first distance from the other surface of the transfer belt to the first sensing element.