Patent application number | Description | Published |
20110097105 | IMAGE FORMING APPARATUS AND CONTROL METHOD THEREOF - Disclosed herein are an image forming apparatus and a control method thereof. In the image forming apparatus, an intermediate transfer member is provided with a position identification mark, to enable sensing of a position of the intermediate transfer member after a cleaning unit is completely spaced apart from the intermediate transfer member. An image formation/transfer position can be controlled in response to a sensing signal of the position identification mark, so that respective colors of developer images may be formed and transferred to the same position on the intermediate transfer member in a state in which contact between the cleaning unit and the intermediate transfer member is released. This minimizes and/or prevents color discrepancy between the respective colors of developer images. | 04-28-2011 |
20130136500 | Multi-Pass Type Image Forming Apparatus - A multi-pass type image forming apparatus allows driving-couplings to couple with and separate from an image-carrier and developing units simultaneously. The apparatus includes a main body, a cover to open or close the main body, an image-carrier unit including an image-carrier and first driven-coupling connected to the image-carrier, developing units including a developing roller and a second driven-coupling connected to the developing roller, first and second driving-couplings to transmit drive power to the first and second driven-couplings, a link unit to move in a first direction in linkage with opening/closing operations of the cover, and a guide unit to be rotatable about the first driving-coupling in linkage with the link unit, the guide unit being moved when rotated about the first driving-coupling so as to couple or separate the first and second driving-couplings to or from the first and second driven-couplings. | 05-30-2013 |
20130164035 | Image Forming Apparatus And Power-Transmission Assembly of The Same - An image forming apparatus having an improved power-transmission assembly to drive a developing cartridge mounted in a main body of the apparatus. The apparatus includes a main body, at least one driving coupling unit rotatably located in a side region of the main body, at least one driven coupling unit connected to a rotator inside a developing cartridge, and a coupling holder in which the driving and driven coupling units are connected to each other to enable a power-transmission from the driving coupling unit to the driven coupling unit. The driving coupling unit includes a first spherical portion to come into contact with one side of an inner surface of the coupling holder when received in the coupling holder. The driven coupling unit includes a second spherical portion to come into contact with the other side of the inner surface of the coupling holder when received in the coupling holder. | 06-27-2013 |
20150177672 | IMAGE FORMING APPARATUS AND METHOD OF CONTROLLING MOTOR - An image forming apparatus includes an image forming unit configured to perform a printing operation by using a plurality of photosensitive media, a plurality of motors configured to drive the plurality of photosensitive media, and a motor controller configured to control a phase and a velocity of the other motor based on a periodic velocity of one motor from among the plurality of motors. | 06-25-2015 |
20150344250 | PAPER FEEDING UNIT AND IMAGE FORMING APPARATUS HAVING THE SAME - A paper feeding apparatus for an image forming apparatus includes a first paper feeding roller to convey a print medium loaded in a first paper feeding tray; a first one-way rotation transmission member disposed coaxially on the first paper feeding roller to transmit a first one-way rotational force to the first paper feeding roller; a second paper feeding roller to convey a print medium loaded in a second paper feeding tray disposed to be spaced apart from the first paper feeding tray; a second one-way rotation transmission member disposed coaxially on the second paper feeding roller to transmit a second one-way rotational force to the second paper feeding roller; a drive source for generating a rotational force to rotate the first and second paper feeding rollers; a first power transmission member disposed between the first one-way rotation transmission member and the drive source to transmit power of the drive source to the first one-way rotation transmission member; and a second power transmission member disposed between the second one-way rotation transmission member and the drive source to transmit the power of the drive source to the second one-way rotation transmission member, wherein when the drive source rotates in one direction, the first paper feeding roller conveys the print medium from the first paper feeding tray by the first one-way rotation transmission member, and when the drive source rotates in an opposite direction, the second paper feeding roller conveys the print medium from the second paper feeding tray by the second one-way rotation transmission member. | 12-03-2015 |
20160070199 | POWER TRANSMITTING APPARATUS AND IMAGE FORMING APPARATUS IMPLEMENTING THE SAME - A power transmitting apparatus includes a shaft, first and second passive members mounted on the shaft to be rotatable, and a driving member that is mounted on the shaft and rotates in connection with a driving source, and that according to a rotation direction, slides toward the first and second passive members along the shaft, so as to selectively establish a power connection with the first and second passive members. | 03-10-2016 |
Patent application number | Description | Published |
20140153928 | COMMUNICATION APPARATUS IN WIDEBAND WIRELESS OPTICAL COMMUNICATION SYSTEM BASED ON FREE SPACE, AND TRANSMISSION AND RECEPTION METHOD USING THE SAME - In a wireless optical communication system in which communication is performed based on a free space and a plurality of the communication apparatuses are arranged in a ring form around a central office terminal (COT), the communication apparatus monitors optical signals received in a first direction or in a second direction opposite to the first direction, and selects a first path through which the optical signals in the first direction are received and a second path through which the optical signals in the second direction are received. The communication apparatus converts an optical signal having a predetermined unique wavelength from among the optical signals received through the selected path into a signal of a frequency domain having a plurality of subcarriers, and obtains packet data mapped to each of the subcarriers. | 06-05-2014 |
20150163089 | METHOD AND APPARATUS FOR MANAGING RESOURCES OF TRANSPORT NETWORK - Provided is a method and apparatus for managing resources of a transport network, the method including monitoring a fault occurring in a transfer path, and registering, when the fault occurs in the transfer path, a normal link of a second layer assigned to an operation path of a first layer in which the fault occurs. | 06-11-2015 |
20150188625 | METHOD FOR REALIZING TIME REDUCTION IN SHARED MESH NETWORK - Provided herein is a method for realizing time reduction in shared mesh protection, the method including, in a protection path node, in response to a resource being used for a first protection path by a node, receiving a resource use request for setting a second protection path from another node; activating a protection switch through comparison of priorities of protection paths at the resource use request received; and transmitting, by the activation of a protection switch, to a next protection path node a first shared mesh protection message where a revert (RT) message for the first protection path and a protection switch (SF) message for setting a second protection path are multiplexed. | 07-02-2015 |
20150229398 | LINK ACTIVATION METHOD AND APPARATUS FOR PROTECTION PATH - Provided is a method and apparatus for activating a link between a first node and a second node for transmission of a lower order optical channel data unit (ODU), in which the link may be activated based on a first adaptation function between a higher order ODU and the lower order ODU performed by the second node and a second adaption function between the higher order ODU and the lower order ODU performed by the first node, and may also be activated when the first node receives an activation message from a third node, a preceding node of the first node. | 08-13-2015 |
20150229523 | VIRTUAL EXTENSIBLE LOCAL AREA NETWORK (VXLAN) SYSTEM OF AUTOMATICALLY CONFIGURING MULTICASTING TUNNEL FOR SEGMENT OF VIRTUAL EXTENSIBLE LOCAL AREA NETWORK ACCORDING TO LIFE CYCLE OF END SYSTEM AND OPERATING METHOD THEREOF - Provided is an operating method of a database server in a Virtual eXtensible Local Area Network (VXLAN) system including a network administrator, the database server, a switch and at least one end system. The database server may maintain a table including information about a network profile and information about a service profile, receive, from the switch, a request for information on a virtual station interface (VSI) type corresponding to a request message for setting up and canceling a VXLAN service that the switch receives from the at least one end system, retrieve a network property corresponding to the VSI type from the table in response to the request, and provide the retrieved network property to the switch. | 08-13-2015 |
20150281075 | METHOD AND APPARATUS FOR PROCESSING ADDRESS RESOLUTION PROTOCOL (ARP) PACKET - A method and apparatus for processing an address resolution protocol (ARP) packet that searches, with respect to an ARP packet received from an end system, for a media access control (MAC) address of another end system indicated by the received ARP packet, transmits a proxy response packet to the end system that transmits an ARP packet using the found MAC address, and thus reduces an overload of a Layer | 10-01-2015 |
Patent application number | Description | Published |
20100053938 | BACKLIGHT ASSEMBLY AND A DISPLAY DEVICE HAVING THE SAME - A backlight assembly comprising: a plurality of fluorescent lamps each including a lamp tube having a fluorescent layer, a discharge gas contained in the lamp tube, a first electrode disposed in the lamp tube, and a conductive terminal capacitively coupled to the first electrode; and a lamp socket which secures the plurality of fluorescent lamps. | 03-04-2010 |
20100201718 | LIGHT EMITTING LAMP, BACKLIGHT ASSEMBLY AND DISPLAY DEVICE HAVING THE SAME - A light emitting lamp, a backlight assembly and a display device including the same are provided. The light emitting lamp includes a lamp tube longitudinally extended along an extension line, and a plurality of set electrodes disposed on a periphery of the lamp tube and along the extension line. The periphery of the lamp tube is divided into a first region and a second region by a plane including the extension line, and each of the set electrodes includes a first electrode disposed on the first region and a second electrode disposed on the second region. | 08-12-2010 |
20130220902 | PLC SYSTEM FOR AUTOMATICALLY CONTROLLING PID FOR MAINTAINING TARGET WATER QUALITY VALUE BY DEPOSITING WATER TREATMENT CHEMICAL - A PLC system for automatically controlling PID for controlling the target value for residual chemicals in a water treatment facility, according to the present invention, comprises: a PID control software; a main control room computer for generating a PID control command regarding chemical deposit amount and relaying same to a field control PLC in a chemical room; the field control PLC in the chemical room for receiving a PID control command signal from the main control room computer and performing computing and control; and a chemical depositor in the chemical room for receiving the control signal from the field control PCL and depositing the indicated amount of chemicals, wherein the main control room computer calculates an initial setting value for the chemical deposit amount and generates the PID control command. | 08-29-2013 |
20150182741 | MEDICAL PATCH - A medical patch having an electric potential generating structure which is attachable to a wound to thus regenerate injured skin tissues is provided. The medical patch includes a unit patch having a piezoelectric potential generating structure. The unit patch includes a first layer, a second layer and a piezoelectric nanomaterial disposed between the first and second layers. | 07-02-2015 |
20150188028 | SELF-POWERED GENERATOR, METHOD OF FABRICATING THE SAME AND PIEZOELECTRIC ENERY-HARVESTING DEVICE USING THE GENERATOR - A self-powered generator is provided. The generator includes a piezoelectric nanorod member layer that includes a first layer; a second layer; and a plurality of piezoelectric nanorods disposed between the first and second layers. The piezoelectric nanorod is a biaxially-grown nanorod. When mechanical energy is applied from an outside, an upper half and a lower half of each of the plurality of piezoelectric nanorods generate piezoelectric potentials having opposite polarities, the upper half and the lower half being on both sides of a longitudinal axis along an axis perpendicular to the longitudinal axis. | 07-02-2015 |