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Karp-Sik Youn

Karp-Sik Youn, Hwaseong-Si KR

Patent application numberDescriptionPublished
20090141084IMAGE FORMING APPARATUS - An image forming apparatus that provides an easy installation and separation of a print head thereto and therefrom. The image forming apparatus can include a body, a print head including a nozzle part having a length at least a width as wide as a printable printing medium, a head mount provided at the body to mount the print head, at least one first connector provided at the head mount, and at least one second connector provided at the print head to correspond to the at least one first connector. The first connector and second connector are connected with each other as the print head is mounted to the head mount.06-04-2009
20090303280PRINTING HEAD CLEANING APPARATUS, IMAGE FORMING APPARATUS HAVING THE SAME AND METHOD TO CLEAN PRINTING HEAD - A printing head cleaning apparatus usable with an image forming apparatus includes a spraying unit to spray a quantity of cleaning solution using a sprayer and a cleaning shuttle to carry the spraying unit. The spraying unit includes a cleaning solution tank to store the cleaning solution sprayed by the sprayer, a spraying cam to operate the sprayer to selectively spray a quantity of the cleaning solution, and a cam driving member to cause the spraying cam to rotate according to movement of the cleaning shuttle.12-10-2009
20100066793INKJET IMAGE FORMING APPARATUS HAVING ARRAY TYPE PRINT HEAD - An inkjet image forming apparatus having an array type print head to stably deliver a printing medium through a printing zone. The inkjet image forming apparatus includes an array type print head including a nozzle part to discharge ink to a printing zone, a first rolling unit having a first nip portion to nip the printing medium, wherein the first nip portion is disposed before the printing zone to deliver the printing medium to the printing zone, and a second rolling unit having a second nip portion to nip the printing medium, wherein the second nip portion is disposed downstream of the first rolling unit in a delivery direction of the printing medium. A distance between the first nip portion and the second nip portion is less than or equal to 3 inches.03-18-2010
20100171789NOZZLE CAPPING DEVICE OF INKJET PRINTER - Provided is a nozzle capping device of an inkjet printer including a cap covering a nozzle chip of an inkjet head, and a humidity supply unit supplying humidity to an inner space formed by the cap covering the nozzle chip and the inkjet head.07-08-2010
20110011337IMAGE FORMING APPARATUS - An image forming apparatus including a medium feeding unit to supply a print medium, a medium coating assembly to coat the print medium with a coating liquid, and an image forming unit to form an image on the coated print medium, the medium coating assembly including a container to store the coating liquid, a coating unit to coat the print medium with the coating liquid, a channel to guide the coating liquid to move between the container and the coating unit, and a controller to selectively control the coating liquid to be supplied from the container to the coating unit and to be recovered from the coating unit to the container through the same channel.01-20-2011
20110043567WIPING ASSEMBLY AND IMAGE FORMING APPARATUS HAVING THE SAME - An inkjet image forming apparatus includes a main body frame, a medium supplying unit which is coupled to the main body frame and supplying a print medium, an image forming cartridge which is coupled to the main body frame, forms an image on the supplied print medium, and including a nozzle to eject ink, and a wiping assembly which wipes the nozzle. The wiping assembly includes a wiping sheet storage unit in which the wiping sheet is stored as being wound, a transfer shuttle which moves along arrangement of the nozzle by a driving force of a driving source, a pressing member which is provided in the transfer shuttle and presses a region of the wiping sheet against the nozzle to perform wiping using the wiping sheet, and a wiping sheet support unit which is provided in the transfer shuttle and restricts move of the wiping sheet while the nozzle is wiped.02-24-2011
20110043568SCRAPPING UNIT AND IMAGE FORMING APPARATUS HAVING THE SAME, AND CLEANING METHODS THEREOF - A scrapping unit and an image forming apparatus having the same, and cleaning methods thereof to improve a maintenance performance. The scrapping unit cleans a polluted member disposed in an image forming apparatus and stained by a polluting material. The scrapping unit may include an endless belt to circulate between an exposed position where a surface of the endless belt is exposed toward the polluted member, and a non-exposed position where the surface of the endless belt is not exposed with respect to the polluted member, and a belt support frame which includes a belt support surface to support the endless belt so that the endless belt can be unfolded in the exposed position, and a storing space to store the endless belt so that the endless belt can be folded in the non-exposed position.02-24-2011

Patent applications by Karp-Sik Youn, Hwaseong-Si KR

Karp-Sik Youn, Hawaseong-Si KR

Patent application numberDescriptionPublished
20080303857NOZZLE CHIP CLEANING APPARATUS OF INKJET PRINTER, INKJET PRINTER USING THE SAME, AND METHOD THEREOF - A nozzle chip cleaning apparatus of an inkjet printer in which a structure to supply and drain a cleaning solution to clean nozzle chips. The nozzle chip cleaning apparatus includes a cleaning bath in which a cleaning solution is contained to clean the nozzle chips, an ultrasonic wave device installed in the cleaning bath to generates waves in the cleaning solution contained in the cleaning bath so that the cleaning solution reaches the nozzle chips, a supply and drain pipe that performs as a supply pipe to supply the cleaning solution from a cleaning solution storage tank to the cleaning bath and as a drain pipe to drain the cleaning solution that has been supplied to the cleaning bath to the cleaning solution storage tank, and a pump that provides a driving force to supply and drain the cleaning solution through the supply and drain pipe. According to the above configuration, since the supply and drain of the cleaning solution is performed using one supply and drain pipe, a space that is occupied by the pipe can be reduced, thereby reducing a size of the inkjet printer.12-11-2008