Abstract: A hydrogen supply method includes a two-side heat exchange mode in which both introducing a second fluid into a hydrogen storage part after the second fluid exchanges heat with a first fluid in a second heat exchanger in a state in which a compressor is driven to compress the first fluid and introducing the second fluid into the hydrogen storage part after the second fluid is heated or cooled in a thermal device are performed. The method also includes a one-side heat exchange mode in which one of introducing the second fluid into the hydrogen storage part after the second fluid exchanges heat with the first fluid in the second heat exchanger in a state in which the compressor is driven to compress the first fluid and introducing the second fluid into the hydrogen storage part after the second fluid is heated or cooled in the thermal device is performed.

Abstract: A system for managing a seat occupancy status by a passenger and a control method of the system includes a seat belt sensor provided for each seat to detect a fastening or unfastening of the seat belt, a pressure detection unit provided for each seat to detect occupancy or non-occupancy of a seat by a passenger and pressure of the seated passenger, a secondary control unit provided for each seat and woken up by radio communication with a vehicle to alert to an unfastened state of the seat belt when the seat belt is unfastened upon determining, by a seat belt sensor, whether the seat belt is fastened, and a primary control unit provided in the vehicle to perform radio communications with each secondary control unit and check an abnormality based on reception or non-reception of the system data transmitted from the secondary control unit.

Abstract: A method and an apparatus for connecting an image forming apparatus with multiple host devices. The method includes: displaying a user interface in which the image forming apparatus and the host devices are arranged; setting an area in the user interface in which the host devices are to be connected to the image forming apparatus; and connecting host devices positioned in the set area to the image forming apparatus.

Abstract: A method and an apparatus for connecting an image forming apparatus with multiple host devices. The method includes: displaying a user interface in which the image forming apparatus and the host devices are arranged; setting an area in the user interface in which the host devices are to be connected to the image forming apparatus; and connecting host devices positioned in the set area to the image forming apparatus.

Abstract: A method and an apparatus for connecting an image forming apparatus with multiple host devices. The method includes: displaying a user interface in which the image forming apparatus and the host devices are arranged; setting an area in the user interface in which the host devices are to be connected to the image forming apparatus; and connecting host devices positioned in the set area to the image forming apparatus.

Abstract: An image forming method which examines validity of an output object using an ROP, for example, and determines whether the output object is printed in a color mode or in a mono mode, is provided. The method includes detecting an output object having a color value from among output objects constituting a mono page, examining the validity of the detected output object, and outputting the detected output object as a mono object if the output object is determined not to be valid. Accordingly, if a mono image having an RGB value is recognized as a color object but is data not to be output on paper or media, the image is recognized as data which are not necessary to be output using color toner, so that only black toner is used. Accordingly, the printing rate increases, and efficiency of processing a printing is enhanced.

Abstract: An image forming device and a controlling method thereof, in which the image forming device includes: a customer replaceable unit memory (CRUM) associated with a recording material storage medium to store a color conversion table group including a color conversion table that corresponds to status information of the image forming device, and a controller to determine current status information of the image forming device, to read a target color conversion table from among the color conversion table group according to the determined current status information, and to apply the target color conversion table to perform a printing operation on a document. Therefore, an optimum print quality can be guaranteed according to the determined current status of the image forming device.

Abstract: An image forming method which examines validity of an output object using an ROP, for example, and determines whether the output object is printed in a color mode or in a mono mode, is provided. The method includes detecting an output object having a color value from among output objects constituting a mono page, examining the validity of the detected output object, and outputting the detected output object as a mono object if the output object is determined not to be valid. Accordingly, if a mono image having an RGB value is recognized as a color object but is data not to be output on paper or media, the image is recognized as data which are not necessary to be output using color toner, so that only black toner is used. Accordingly, the printing rate increases, and efficiency of processing a printing is enhanced.

Abstract: A method and an apparatus for connecting an image forming apparatus with multiple host devices. The method includes: displaying a user interface in which the image forming apparatus and the host devices are arranged; setting an area in the user interface in which the host devices are to be connected to the image forming apparatus; and connecting host devices positioned in the set area to the image forming apparatus.

Abstract: A color processing method of an image forming device, and an apparatus using the same. In the image forming device, which prints data in a plurality of colors, the color processing method may include storing a plurality of color tables, each color table containing a reference factor used with color processing of image data of an original document, selecting one of the plurality of color tables, processing a color of the image data of the original document with reference to the selected color table, and converting and outputting the color-processed image data of the original document into a data format readable by the image forming device. Accordingly, a user can change the color representation of the printed image according to a predetermined mode.

Abstract: An image forming method and an image forming system to perform an overlay function. The method includes selecting a page that is to be overlaid from among pages in a document that is to be printed; generating a printing data, to which an overlay is applied, by applying the selected page as an overlaying page of the document that is to be printed; and printing the printing data. Therefore, a certain page is used to overlay, and is overlaid onto other pages, and thus, the overlay printing can be performed without performing several processes to overlay.

Abstract: An image forming device with a printing part to print printing data received from an external device is provided. The image forming device has a mode selector to allow a user to select one of a plurality of printing modes, and a controller. The controller creates a page image by processing the printing data on the basis of the printing mode selected through the mode selector while the printing data is printed on the basis of a predetermined printing mode, and controls the printing part to print the page image to allow a printing order to be inputted for changing a printing mode for document data, and a printing operation to be accomplished on the basis of the changed printing mode while the document data is printed.

Abstract: A printing control apparatus and method thereof are provided that provide a clone printing option for printing a plurality of identical printing-object documents of a certain clone size on a single sheet of printing paper. The apparatus includes an application program unit for creating a printing-object document in a certain size, and a printer driver unit for modifying the size of the created document to a clone size by transferring the clone size to the application program unit when the clone size is determined, and creating print data by applying the clone printing option to the modified document. Accordingly, margins occurring on the sheets of printed paper are minimized without having image distortion, and an image can be clone printed in the size that a user desires.

Abstract: An image processing apparatus and an image processing method. The image processing apparatus includes a cell information obtaining unit to obtain cell information of each of a plurality of cell images, the cell information including at least location information of each of the plurality of cell images, a cell image arranging unit to arrange the cell images according to the obtained cell information, and to generate at least one group image by grouping adjacent cell images together, and a group image processing unit to perform a predetermined image processing for each of the at least one group image.

Abstract: An image forming device and a controlling method thereof, in which the image forming device includes: a customer replaceable unit memory (CRUM) associated with a recording material storage medium to store a color conversion table group including a color conversion table that corresponds to status information of the image forming device, and a controller to determine current status information of the image forming device, to read a target color conversion table from among the color conversion table group according to the determined current status information, and to apply the target color conversion table to perform a printing operation on a document. Therefore, an optimum print quality can be guaranteed according to the determined current status of the image forming device.

Abstract: A method and apparatus for duplex printing using a preview function by which a printer can set the printing locations on front and back pages on which duplex printing is to be performed using a preview image of the front and back pages, and then perform duplex printing. The method includes generating a preview image of front and back pages that are prepared by a user, setting printing locations on the front and back pages on which duplex printing is to be performed according to printing locations that a user designates using the preview image, coding images of the front and back pages and converting the coded data into bitmap image data, and duplex printing the bitmap image data.

Abstract: A color processing method of an image forming device, and an apparatus using the same. In the image forming device, which prints data in a plurality of colors, the color processing method may include storing a plurality of color tables, each color table containing a reference factor used with color processing of image data of an original document, selecting one of the plurality of color tables, processing a color of the image data of the original document with reference to the selected color table, and converting and outputting the color-processed image data of the original document into a data format readable by the image forming device. Accordingly, a user can change the color representation of the printed image according to a predetermined mode.