Abstract:
PURPOSE: A method for offering exit information and a peripheral map of a subway station in a mobile communication terminal and a device are provided to recognize a destination location easily by offering the exit information and the peripheral map through a SyncML DM server. CONSTITUTION: If a user selects a corresponding service menu, a mobile communication terminal checks corresponding service information in a memory(300,302). In case the corresponding service information is not existed, a control unit requests a connection to a SyncML DM(Synchronization Markup Language Device Management) server(304). The control unit acquires the corresponding service information. The mobile communication terminal displays the service information(308). In case the corresponding service information is existed, the control unit checks need of updating of the corresponding service information(318).
Abstract:
본 발명은 액티브 핀의 제조 방법 및 이를 포함하는 트랜지스터에 관한 것이다. 절연층이 형성된 실리콘 기판을 식각하여 핀 구조를 형성하는 단계; 상기 핀 구조가 형성된 실리콘 기판 상에 금속층을 증착하여 실리사이드를 형성하는 단계; 및 상기 형성된 실리사이드를 제거하는 단계를 포함하는 액티브 핀 제조방법을 제공한다. 액티브 핀, 전계효과 트랜지스터, 오메가 게이트, 나노와이어
Abstract:
A device for preventing contamination of a developer is provided to prevent contamination of the developer without having an additional high-voltage resistor, and simplify circuit configuration by integrating a voltage supply unit and a voltage switch into a single board. A device for preventing the contamination of a developer includes a voltage supply unit(200), a voltage switch(300), and a central processing unit(100). The voltage supply unit supplies a voltage to a plurality of developers. The voltage switch provides the voltage supplied from the voltage supply unit to one of the plurality of developers according to a switching operation and grounds developers other than the developer to which the voltage is provided. The central processing unit controls the switching operation of the voltage switch.
Abstract:
A method and a device for updating a program of an image forming device with an RFID(Radio Frequency IDentification) are provided to install the program to the image forming device by reading information of an RFID tag attached to the image forming device with an RFID reader installed to a computer. The RFID reader(220) reads the RFID tag installed to the image forming device. The RFID tag(200) stores the information for the program used in the image forming device. A program updater(240) updates the program in case of need by using the read program information. An RFID tag updater(260) inputs the updated program information to the RFID tag attached to the image forming device. The program is a driver or firmware fit for the image forming device.
Abstract:
접촉불량을 막고, 제조단가를 최소화하는 접촉단자를 가지는 인쇄회로기판이 개시된다. 인쇄회로기판은, 전자제품의 동작을 제어 및 처리하는 회로부, 및 외부 장치와 전기적으로 연결하기 위하여 다수개의 소면적 단자부가 모여서 대면적을 구성하고 이 대면적을 통하여 외부장치와 전기적으로 연결하는 대면적 단자부를 갖는다. 본 발명의 대면적 단자부는 다수개의 크기 및 형상이 동일한 소면적 단자부가 일정 간격을 이격한 상태로 모여서 구성된다. 또한, 크기 및 형상은 다양한 형태로 구성될 수도 있다. 본 발명의 인쇄회로 기판은, 소면적 단자부가 모여서 대면적 단자부를 소면적 단자부가 모여서 대면적 단자부를 구성하므로, 납땜으로 인한 분균일한 표면상태의 불량을 막아주고, 외부단자와의 접촉특성을 향상시키며, 제조단가의 저렴화 및 제조공정의 단순화를 도모할 수 있다. 다수개의 소면적 단자부, 대면적 단자부, 접촉단자, 인쇄회로기판, PCB, 땜납, 납땜
Abstract:
A method of controlling a charging potential of an organic photoconductive cell (OPC) includes a first operation of applying two charging voltages Vc1 and Vc2 having respective duties D1 and D2 established in an engine controller unit (ECU) to a conductive roller via a high voltage power supply (HVPS) to charge the OPC, a second operation of measuring sensing voltages Vs1 and Vs2 through a sensing resistor Rs coupled to the conductive roller so that the ECU establishes a target charging current It and calculates a new charging voltage Vc3 and a new duty D3, a third operation of applying the new charging voltage Vc3 and the new duty D3 to the conductive roller via the HVPS to charge the OPC and measuring a charging current Ic3 of the conductive roller, and a fourth operation of comparing a difference between the charging current Ic3 of the conductive roller and the target charging current It with a tolerance value TOL to control the charging potential by using the target charging current when the difference is smaller than the tolerance value TOL. The method maintains the charging potential by compensating for a residual potential of the OPC, thus improving a performance of a printer.
Abstract:
PURPOSE: An apparatus for supplying a development high voltage is provided to realize a high quality printing by stably maintaining a metal shaft potential of each developers not executing a developing operation. CONSTITUTION: A high voltage power supply unit(142) provides a development high voltage to developing roll shafts(R_M,R_C,R_M,R_K) of a plurality of fixed developers(Y,C,M,K) by colors to move toner to an OPC(Organic Photo Conductor) drum from the plurality of fixed developers by colors. A high voltage driver(144) selectively outputs high voltage driving signals according to a print image to selectively apply the development high voltage to the plurality of fixed developers by colors. Power switches(S_Y,S_C,S_M,S_K) by developers switch power supply to the plurality of fixed developers by colors in response to the high voltage driving signals. A DC(Direct Current) power supply part(146) supplies DC power supply to the rest of the developers received the development high voltage.
Abstract:
PURPOSE: A method for measuring and controlling cleaning efficiency of a wet type electrophotographic printer is provided to effectively remove remaining toner to improve printing quality. CONSTITUTION: A cleaning unit removes remaining toner on a photosensitive belt, that has passed through a transfer roller(S5). The quantity of the remaining toner on the photosensitive belt is measured using a color toner concentration sensor(S6). The cleaning unit includes upper and low rollers. The upper roller comes into contact with the remaining toner on the photosensitive belt. The lower roller is located under the photosensitive belt, corresponding to the upper roller, and fastens the photosensitive belt. The color toner concentration sensor is located between the cleaning unit and a resetting device.