Abstract: A computing resource management system using software modularization in a cluster computing environment in which computing devices are connected, including an application process running on each computing device and an algorithm processing process configured to run independently of the application process and perform task processing on the application process, the computing resource management system including: a task managing system configured to receive a task request message from an application process requiring a task from each computing device; a process managing system configured to confirm an algorithm processing process of computing devices connected to the cluster computing environment, and determine whether there is an algorithm processing process in an idle state to which the application process requested for a task will be assigned; and a performed managing system configured to confirm a result of an application process whose task is performed by the algorithm processing process.

Abstract: An image forming apparatus according to the present general inventive concept includes a transfer unit configured to transfer an image formed on a photoreceptor to a transfer medium, a power supply unit configured to supply transfer power to the transfer unit, a density sensor unit configured to sense a density of the image transferred to the transfer medium, and a control unit configured to control the power supply unit so that the transfer power supplied to the transfer unit is adjusted, wherein the density sensor unit is allowed to move from a first position for sensing a density of sample patches formed on the transfer medium to a second position for sensing a density of a reference reflective plate, and the control unit performs a sensor compensation mode and a density compensation mode.

Abstract: A door latch assembly of a vehicle includes an outer handle lever connected to a door outside handle. An opening lever is configured to pivot in a door opening direction when the outer handle lever pivots. A pawl lever is coaxially connected to the opening lever and configured to pivot with the opening lever in the door opening direction in a door unlocked state. A door locking and unlocking device is configured to pivot the opening lever and the pawl lever in the door unlocked state in the door opening direction. A claw lever is restricted by the pawl lever to lock a striker when the door is locked and is released from the pawl lever to release the striker when the door is opened.

Abstract: A door latch assembly of a vehicle includes an outer handle lever connected to a door outside handle. An opening lever is configured to pivot in a door opening direction when the outer handle lever pivots. A pawl lever is coaxially connected to the opening lever and configured to pivot with the opening lever in the door opening direction in a door unlocked state. A door locking and unlocking device is configured to pivot the opening lever and the pawl lever in the door unlocked state in the door opening direction. A claw lever is restricted by the pawl lever to lock a striker when the door is locked and is released from the pawl lever to release the striker when the door is opened.

Abstract: A detection device detecting a state of a toner image, an image forming apparatus including a detection device and method of detection are provided. The detection device includes a detector having a light window where light passes through and detecting a state of a toner image formed on an image bearing member via the light window, and a cleaner removing a pollutant attached to a surface of the light window. The cleaner includes an adsorption unit formed of a conductive material and reciprocating while being in contact with the surface of the light window and a voltage applying unit applying a voltage for adsorbing the pollutant to the adsorption unit.

Abstract: An image forming apparatus, a method, and a non-transitory computer-readable recording medium are provided. The apparatus includes an image former configured to form patches for print density calibration on an image forming medium, a print density sensor configured to sense a print density for the plurality of reflective patches formed on the image forming medium, a calculator configured to calculate calibration coefficients of the sensor based on the sensed print densities, and a calibrator configured to perform the print density calibration using the calculated calibration coefficients.

Abstract: A detection device detecting a state of a toner image, an image forming apparatus including a detection device and method of detection are provided. The detection device includes a detector having a light window where light passes through and detecting a state of a toner image formed on an image bearing member via the light window, and a cleaner removing a pollutant attached to a surface of the light window. The cleaner includes an adsorption unit formed of a conductive material and reciprocating while being in contact with the surface of the light window and a voltage applying unit applying a voltage for adsorbing the pollutant to the adsorption unit.

Abstract: An image forming apparatus according to the present general inventive concept includes a transfer unit configured to transfer an image formed on a photoreceptor to a transfer medium, a power supply unit configured to supply transfer power to the transfer unit, a density sensor unit configured to sense a density of the image transferred to the transfer medium, and a control unit configured to control the power supply unit so that the transfer power supplied to the transfer unit is adjusted, wherein the density sensor unit is allowed to move from a first position for sensing a density of sample patches formed on the transfer medium to a second position for sensing a density of a reference reflective plate, and the control unit performs a sensor compensation mode and a density compensation mode.

Abstract: A line interface unit in which a circuit to detect a calling line and a ring signal includes a connecting unit connected to a public switched telephone network (PSTN) to individually detect the calling line and the ring signal and to commonly use an insulating circuit electrically insulated from PSTN. A circuit to detect the calling line and the ring signal is simply implemented so that economical burden can be reduced.

Abstract: A paper feeding device to sense various sizes of paper according to a sensing voltage output from a sensor and an image forming apparatus having the same includes a body to receive paper in which an image is printed thereon. The image forming apparatus further includes a paper feeding device to feed paper into the body. The paper feeding device includes a paper tray in which paper is loaded, and paper guides that are slidably installed to the paper tray to guide left and right ends of paper loaded in the paper tray in a paper feeding direction. A light reflector is installed to be moved in linkage with the paper guides and includes a stepped reflection surface. A sensor emits light to the light reflector and receives the light reflected by the light reflector to determine the sizes of paper.

Abstract: A line interface unit in which a circuit to detect a calling line and a ring signal includes a connecting unit connected to a public switched telephone network (PSTN) to individually detect the calling line and the ring signal and to commonly use an insulating circuit electrically insulated from PSTN. A circuit to detect the calling line and the ring signal is simply implemented so that economical burden can be reduced.

Abstract: A scan image correction device includes a scanning part to scan an image of a document in a block unit, an electro static discharge (ESD) determination part to determine a presence of an external ESD while the scanning part scans the image, a document feeding adjustment part to feed the document backward by the block unit to allow the scanning part to re-scan the image if the ESD determination part determines that the ESD present, and an image process part to receive the image as an ESD free scan image and to process the received image. Accordingly, the scan image correction device prevents one or more black lines from appearing by an influence of the ESD during scanning so that a high-quality scan image can be provided.