Abstract: Provided is a vehicle thermal management system, including: an HVAC subsystem thermally connected to a passenger compartment; and a powertrain cooling subsystem thermally connected to a powertrain component.

Abstract: The present invention relates to a cam apparatus of a portable sublimation printer, which can simultaneously implement platen roller up/down and paper pickup roller up/down operations with one cam in a portable sublimation printer, and can constitute a thin and light portable sublimation printer.

Abstract: The present invention relates to a cam apparatus of a portable sublimation printer, which can simultaneously implement platen roller up/down and paper pickup roller up/down operations with one cam in a portable sublimation printer, and can constitute a thin and light portable sublimation printer.

Abstract: A method of preventing a flow pattern in a wet-type color image forming apparatus and a system adopting the same includes a material layer directly contacting a developing roller of a developing unit of a photosensitive body of the image forming apparatus and having a thickness of 7–15 ?m. A size of an essential composition used for representing corresponding one of colors in high-concentration ink is 0.7–1.5 ?m. A hold up volume is not formed between the developing roller and the photosensitive body during a developing process, and a flow pattern such as a stripe, is not formed in a final image, and even though the flow pattern is formed in the final image, the flow pattern can be minimized.

Abstract: A developing unit of a liquid electrophotographic image forming apparatus. The developing unit includes a developing roller, which supplies ink to a photosensitive medium on which an electrostatic latent image is formed, to develop the electrostatic latent image. The apparatus also includes an ink storage unit adapted to store ink to be supplied to the developing roller, and an ink cartridge, which is installed in the ink storage unit to be opened or closed and supplies ink to the ink storage unit. The ink cartridge includes a cartridge sleeve rotatably installed, and a cartridge slider, which slides by rotation of the cartridge sleeve to open the ink cartridge.

Abstract: A liquid electrophotographic image-forming apparatus is provided including an anti-wraparound device having a bushing formed on both ends of a rotary shaft of a transfer backup roller to slide thereon, a shielding member installed on the bushing and contacting the transfer belt and the cleaning blade to prevent developer removed by the cleaning blade from flowing to the sides of the transfer belt, and an elastic member installed on both sides of the transfer backup roller for elastically biasing the bushing toward the transfer belt. Therefore, a wraparound phenomenon generated on the sides of the cleaning blade and transfer belt can be prevented, thus obtaining a higher image quality.

Abstract: A wet color image forming apparatus and method of using the same is provided. The wet color image forming apparatus includes a transfer belt, which is formed of a plurality of layers including a surface layer contacting a sheet of paper. A hardness of the surface layer is reduced by removing carbon from a material constituting the surface layer. The apparatus also includes a transfer roller which applies pressure to the transfer belt to transfer the color image formed on the transfer belt onto the sheet of paper.

Abstract: A wet color image forming apparatus to transfer a color image using electrostatic force and pressure and a method of forming an image with the wet color image forming apparatus. The wet color image forming apparatus includes photosensitive bodies, developing units, a transfer belt, a paper transfer roller, and a multi-function roller. The photosensitive bodies form latent electrostatic images corresponding to image information input from the outside. The transfer belt is driven and the paper transfer roller is supported during the transfer of the image to the paper by the multi-function roller. The transfer belt includes a surface layer that contacts the photosensitive bodies and the paper transfer roller, a first cushion layer that contacts the multi-function roller, and a second cushion layer between the surface layer and the first cushion layer and has a lower hardness than the first cushion layer.

Abstract: A developing unit of a liquid electrophotographic image forming apparatus. The developing unit includes a developing roller, which supplies ink to a photosensitive medium on which an electrostatic latent image is formed, to develop the electrostatic latent image. The apparatus also includes an ink storage unit adapted to store ink to be supplied to the developing roller, and an ink cartridge, which is installed in the ink storage unit to be opened or closed and supplies ink to the ink storage unit. The ink cartridge includes a cartridge sleeve rotatably installed, and a cartridge slider, which slides by rotation of the cartridge sleeve to open the ink cartridge.

Abstract: A liquid electrophotographic image-forming apparatus is provided including an anti-wraparound device having a bushing formed on both ends of a rotary shaft of a transfer backup roller to slide thereon, a shielding member installed on the bushing and contacting the transfer belt and the cleaning blade to prevent developer removed by the cleaning blade from flowing to the sides of the transfer belt, and an elastic member installed on both sides of the transfer backup roller for elastically biasing the bushing toward the transfer belt. Therefore, a wraparound phenomenon generated on the sides of the cleaning blade and transfer belt can be prevented, thus obtaining a higher image quality.

Abstract: A developing apparatus for a liquid type printer includes a developing tank in which ink with a high density supplied from an ink supplying unit is received up to a predetermined level. The developing apparatus also includes a developing roller which is positioned to rotate in the developing tank and keep a predetermined developing gap from a photosensitive medium, and to supply the ink to the photosensitive medium. The developing apparatus includes a metering unit which is rotated in the ink in the developing tank to control an amount of the ink conveyed to the developing roller and moved to the developing gap, and a cleaning roller which cleans the ink remaining after the ink is conveyed from the developing roller to the photosensitive medium.

Abstract: A liquid developer imaging system and a method using the system for developing an image, including a cartridge for containing a developing solution; a developing container for receiving the developing solution supplied from the cartridge via a predetermined supply line; a developing roller partly submerged in the developing solution contained in the developing container, installed to be rotated facing a photosensitive object; and a metering blade for scraping off the developing solution coated on the surface of the developing roller to a predetermined thickness, is provided. According to the system, a developing supply structure can be considerably simplified because a high-density developing solution is directly used in developing an image without a process of diluting the solution, and an image can be developed to have high definition because the concentration of the developing solution coated on the developing roller is regularly controlled by a metering blade.

Abstract: A developing apparatus for a liquid type printer includes a developing tank in which ink with a high density supplied from an ink supplying unit is received up to a predetermined level. The developing apparatus also includes a developing roller which is positioned to rotate in the developing tank and keep a predetermined developing gap from a photosensitive medium, and to supply the ink to the photosensitive medium. The developing apparatus includes a metering unit which is rotated in the ink in the developing tank to control an amount of the ink conveyed to the developing roller and moved to the developing gap, and a cleaning roller which cleans the ink remaining after the ink is conveyed from the developing roller to the photosensitive medium.

Abstract: A method of preventing a flow pattern in a wet-type color image forming apparatus and a system adopting the same includes a material layer directly contacting a developing roller of a developing unit of a photosensitive body of the image forming apparatus and having a thickness of 7-15 &mgr;. A size of an essential composition used for representing corresponding one of colors in high-concentration ink is 0.7-1.5 &mgr;m. A hold up volume is not formed between the developing roller and the photosensitive body during a developing process, and a flow pattern such as a stripe, is not formed in a final image, and even though the flow pattern is formed in the final image, the flow pattern can be minimized.

Abstract: A wet color image forming apparatus to transfer a color image using electrostatic force and pressure and a method of forming an image with the wet color image forming apparatus. The wet color image forming apparatus includes photosensitive bodies, developing units, a transfer belt, a paper transfer roller, and a multi-function roller. The photosensitive bodies form latent electrostatic images corresponding to image information input from the outside. The transfer belt is driven and the paper transfer roller is supported during the transfer of the image to the paper by the multi-function roller. The transfer belt includes a surface layer that contacts the photosensitive bodies and the paper transfer roller, a first cushion layer that contacts the multi-function roller, and a second cushion layer between the surface layer and the first cushion layer and has a lower hardness than the first cushion layer.

Abstract: An image forming system in an electrophotographic printer and a method for forming an image using the system. The image forming system includes a photosensitive medium on which an electrostatic latent image is formed, a developing unit for developing the electrostatic latent image with developing solution having a predetermined color, a transfer medium onto which the developed image is transferred, an image charging unit for charging the image transferred onto the transfer medium, and a transferring unit for transferring the charged image onto a paper. In the above configuration, an electric force required for the transferring step is enhanced by the image charging unit before the image on the transfer medium is transferred onto the paper, and thereby the efficiency of transferring the image onto the paper is improved more.

Abstract: A liquid developer imaging system and a method using the system for developing an image, including a cartridge for containing a developing solution; a developing container for receiving the developing solution supplied from the cartridge via a predetermined supply line; a developing roller partly submerged in the developing solution contained in the developing container, installed to be rotated facing a photosensitive object; and a metering blade for scraping off the developing solution coated on the surface of the developing roller to a predetermined thickness, is provided. According to the system, a developing supply structure can be considerably simplified because a high-density developing solution is directly used in developing an image without a process of diluting the solution, and an image can be developed to have high definition because the concentration of the developing solution coated on the developing roller is regularly controlled by a metering blade.

Abstract: A photoreceptor web for an image forming apparatus includes a base layer, a conductive ground layer formed on the base layer, and a photosensitive layer formed on the ground layer, where an electrostatic latent image is formed by scanned light. A first protective layer is formed on the photosensitive layer for protecting the photosensitive layer, and a heating layer is formed on a rear surface of the base layer in a predetermined pattern for receiving electric power and generating resistance heat. The photoreceptor web is maintained at a constant temperature by the resistance heat generated by the heating layer.

Abstract: A squeegee apparatus of a liquid electrophotographic printer is provided. The apparatus has a squeegee roller for pressing a photoreceptor belt to squeegee excess developer from an image developed on the transfer surface of the photoreceptor belt. A squeegee backup roller is provided opposite to the squeegee roller, to press a reverse surface of the photoreceptor belt. The squeegee apparatus includes a heating device installed in the squeegee backup roller, for heating the photoreceptor belt at a predetermined temperature. During printing, since the photoreceptor belt is squeegeed while it is heated to a predetermined temperature, the squeegeeing efficiency is enhanced, thereby improving the printing quality of the printer.

Abstract: A developing device, of a wet type printer, provided with a reservoir for holding developer liquid. A developing roller is installed at an upper region of the reservoir, and contacts a photosensitive belt. A cleaning device for cleaning the developing roller, is in contact with the developing roller. An auxiliary reservoir is installed below the developing roller, and within the reservoir, to hold a predetermined amount of the developer liquid in which the lower portion of the developing roller is immersed to a predetermined depth. The cleaning device is installed within the auxiliary reservoir to be immersed in the developer liquid and is provided with a rotating shaft and a brush installed around the circumferential surface of the rotating shaft. The developing roller is effectively cleaned, by the cleaning device, and particles adhering to the developing roller are easily removed. The removed particles are then recovered and used again in subsequent printing operations.