Abstract: A mobile terminal and a method of controlling the operation of the mobile terminal are provided. The method includes operating a camera provided in a main body of the mobile terminal in a first camera mode, and displaying a screen corresponding to an operation selected during the first camera mode on a display module; and if a 360-degree rotation of the main body about a predetermined axial direction is detected, operating the camera in a second camera mode and displaying a screen corresponding to an operation selected during the second camera mode on the display module. Therefore, it is possible to easily switch the mobile terminal from one camera mode to another camera mode in accordance with the movement of the main body of the mobile terminal.

Abstract: An image forming apparatus includes a photosensitive body to be developed by a conductive toner, a charger which charges a surface of the photosensitive body with a surface potential, a power supply which supplies one of a normal charging power to perform a normal charging operation and a compensation charging power, having a different absolute value than the normal charging power and having the same polarity as the normal charging power, to the charger, and a controller which controls the power supply to supply the normal charging power and the compensation charging power to the charger, respectively, before and after a charging time at which a rear end contact surface of the photosensitive body contacting a rear end of a printing medium is charged by the charger.

Abstract: A biochip for monitoring hybridization is provided. The biochip includes a transparent substrate and a first probe region. The first probe region is disposed on the transparent substrate and has a plurality of analytical probes. The plurality of analytical probes are configured to bond to a sample having a fluorescence material. The plurality of analytical probes are used in analyzing the sample using fluorescence detection. The biochip further includes a second probe region disposed on the transparent substrate and having a plurality of monitoring probes used in monitoring hybridization according to a surface plasmon resonance in the second probe region. The biochip further includes a thin metal layer disposed between the second probe region and the transparent substrate.

Abstract: Provided are an integrated interface apparatus and a method for heterogeneous sensor networks. The integrated interface apparatus includes an application system interface for converting a query command of an application system into a sensor network command according to a common message protocol, analyzing a response message with respect to the sensor network command, and transmits the converted command to the application system; and a sensor network interface for converting the sensor network command according to characteristics of the corresponding sensor network, transmitting the converted sensor network command to the corresponding sensor network, converting sensing data of the respective sensor networks according to predefined data format, and transmitting the converted sensing data to the application system interface over the response message with respect to the sensor network command.

Abstract: An image forming apparatus includes a photosensitive body to be developed by a conductive toner, a charger which charges a surface of the photosensitive body with a surface potential, a power supply which supplies one of a normal charging power to perform a normal charging operation and a compensation charging power, having a different absolute value than the normal charging power and having the same polarity as the normal charging power, to the charger, and a controller which controls the power supply to supply the normal charging power and the compensation charging power to the charger, respectively, before and after a charging time at which a rear end contact surface of the photosensitive body contacting a rear end of a printing medium is charged by the charger.

Abstract: An apparatus and method for transferring content rights by a multimedia message in a mobile communication system are provided, in which a DRM server transmits a right object associated with contents to an MS, upon request of the MS, a transmitting MS generates, upon generation of an event triggering a right object transfer, the right object with content rights to be transferred and a storage right object with remaining content rights, stores the storage right object, and transmits a message including the right object to a receiving MS, and the receiving MS receives the right object by the message from the transmitting MS and stores the right object.

Abstract: An optical guide and an image forming apparatus which uses the optical guide in an eraser or an auxiliary transfer device. The optical guide guides light incident through one side in a lengthwise direction, makes the light in an effective width range of the lengthwise direction uniform and outputs the light. The optical guide includes a first surface on which a plurality of reflective slopes each having a stripe shape and forming a predetermined angle with respect to the lengthwise direction are discretely formed. Either an angle formed between the slopes and the lengthwise direction or an interval between the reflective slopes is varied. The optical guide further includes a second surface which is opposite to the first surface and is used as an output surface from which light reflected from the reflective slopes is output.

Abstract: An image forming device determines the replacement time of components depending on environment. The image forming device includes an engine part performing the printing job using a certain component upon receiving the print command, a printout counter counting the actual number of the printed sheets, an environment detector detecting a certain environmental information by checking status of each component, a memory containing the maximum number of the printable sheets of the component, and a controller driving the component by reading out the operating condition from the memory corresponding to the received environmental information and determining the replacement time of the component by determining the total number of the printed sheets by differentially compensating and accumulating the counted number of the printed sheets depending on the environmental information, and comparing with the maximum number of the printable sheets. Accordingly, accurate replacement time of the component can be estimated.

Abstract: A developing unit and a printing apparatus employing the same. A reflection mirror is installed in the developing unit at an angle to reflect an incident light beam toward an organic photoconductor (OPC) drum also installed in the developing unit. A latent image is formed on the surface of the OPC drum by the light beam.

Abstract: An image forming device determines the replacement time of components depending on environment. The image forming device includes an engine part performing the printing job using a certain component upon receiving the print command, a printout counter counting the actual number of the printed sheets, an environment detector detecting a certain environmental information by checking status of each component, a memory containing the maximum number of the printable sheets of the component, and a controller driving the component by reading out the operating condition from the memory corresponding to the received environmental information and determining the replacement time of the component by determining the total number of the printed sheets by differentially compensating and accumulating the counted number of the printed sheets depending on the environmental information, and comparing with the maximum number of the printable sheets. Accordingly, accurate replacement time of the component can be estimated.

Abstract: An optical guide and an image forming apparatus which uses the optical guide in an eraser or an auxiliary transfer device. The optical guide guides light incident through one side in a lengthwise direction, makes the light in an effective width range of the lengthwise direction uniform and outputs the light. The optical guide includes a first surface on which a plurality of reflective slopes each having a stripe shape and forming a predetermined angle with respect to the lengthwise direction are discretely formed. Either an angle formed between the slopes and the lengthwise direction or an interval between the reflective slopes is varied. The optical guide further includes a second surface which is opposite to the first surface and is used as an output surface from which light reflected from the reflective slopes is output.

Abstract: Disclosed is an electronic photograph forming apparatus including a supplying roller, a developing roller, a charging roller, a laser scanning unit (LSU), a transferring roller, an organic photoconductive (OPC) drum, a pre-transfer lamp (PTL), a controller, and a power supply. The organic photoconductive drum is charged by the charging roller. An electrostatic latent image is formed on the organic photoconductive drum by the laser scanning unit, and the electrostatic latent image is changed into a visible image by toner supplied from the developing roller. The pre-transfer lamp reduces the attached force of toner attached to the organic photoconductive drum to a predetermined level. The controller varies the voltage of the transferring roller according to a predetermined standard so that toner remaining on the transferring roller is transferred to the organic photoconductive drum while the organic photoconductive drum and the transferring roller are raced.

Abstract: An electrophotographic image forming apparatus. The image forming, apparatus includes an organic photoconductive (OPC) drum for forming an image, a charging roller for applying a high voltage to the OPC drum, a developing roller for supplying toner to the OPC drum, a doctor blade for regulating of a toner layer to a predetermined thickness on the developing roller, a supply roller for supplying the toner to the developing roller, an agitator for supplying the, toner to the supply roller, a first cleaning blade formed on a portion of a predetermined frame at a side of the OPC drum, for scraping non-transferred roller on the OPC drum after a transferring operation, and a second cleaning blade formed on another portion of the frame above the first cleaning blade, at a side of the charging roller, for completely scraping non-transferred toner which avoids the cleaning operation of the first cleaning blade.

Abstract: A method for manufacturing a print wire for a 24-pin dot printer head comprises the steps of first annealing an oil temper thin elongated wire rod at a predetermined rate to remove internal strains and eliminate distortions and imperfections after the oil temper wire rod is heated at a specified temperature for a specific length of time, cold forging the wire rod at room temperature or below a recrystallization temperature to form a needle cap having two successively different diameters at one end of the wire rod and then plating the entire wire rod including the needle cap with an electroless nickel material to reinforce possible cracks occurred during the cold forging process. The wire rod may be straightened and cut before or after the formation of a needle cap.