Abstract: An object of the present disclosure is to implement a coloring pattern with a low moisture content on an electrode substrate to thereby improve display reliability and lifetime as well as vivid colors. That is, since when the moisture content is 50 ppm or more, it may cause a reduction in luminance and lifetime due to pixel shrinkage, in order to minimize the moisture content after completion of the post-baking process, the generation of moisture in the panel state is minimized by generating sufficient heat and time in the post-baking step, by including the colorant of the present disclosure.

Abstract: Provided are a display device including a resin containing a repeating unit represented by chemical formula (1), a resin composition comprising the resin, and a pixel separation unit formed of the resin composition, in which the display device is a display device including a first electrode formed on a substrate, a pixel separation unit formed on the first electrode to partially expose the first electrode, and a second electrode installed to face the first electrode, and the pixel separation unit has an absorbance of 0.5/?m or more at a wavelength of 550 nm.

Abstract: The present invention concerns a cable comprising an elongated conducting element and a self-healing material surrounding said elongated conducting element, characterized in that the self-healing material is a cross-linked material obtained from a polymeric composition comprising: A. a polymer matrix comprising at least one olefin polymer with hydrophilic moiety, and B. at least one amphiphilic compound, as self-healing additive.

Abstract: A microcellular foaming nanocomposite includes an elastomeric polymer; a nanofiller; at least two of amphiphilic dispersing agents; a chemical blowing agent; an activator for chemical blowing agent; and a crosslinking agent. The present arrangement also relates to a preparation method of a microcellular foamed nanocomposite.

Abstract: The present invention concerns a cable comprising an elongated conducting element and a self-healing material surrounding said elongated conducting element, characterized in that the self-healing material is a cross-linked material obtained from a polymeric composition comprising: A. a polymer matrix comprising at least one olefin polymer with hydrophilic moiety, and B. at least one amphiphilic compound, as self-healing additive.

Abstract: A system and method of controlling printing are disclosed. The system and method comprise inputting image data printed by a printing section and a preset value for a print medium's size corresponding to the image data; measuring a size of each print medium being fed to the printing section; comparing the measured value for the each measured print medium and the preset value for the print medium's size; counting the number of times in which difference is occurred between the measured value and the preset value; and determining whether the print mediums fed to the printing section are different from the preset print medium's size by comparing the counted number of times and a predetermined reference number of times.

Abstract: An image forming apparatus and a method of detecting a home position error are provided. The image forming apparatus includes a plurality of developing units, a cam shaft, and a plurality of cams that are formed on the cam shaft to correspond to the respective developing units. A power transmitting element is installed between the plurality of developing units and the plurality of cams and selectively transmits a rotational force of a driving source to the plurality of developing units according to a rotational phase of the cam shaft. An indicating element is installed on the cam shaft and includes a plurality of indicating units. A sensor senses the plurality of indicating units. A home position error is detected each time when the indicating units pass through the sensor.

Abstract: Disclosed are a method of preventing overheating of a fuser assembly and an apparatus using the same. The method of preventing overheating of a fuser assembly includes inspecting whether a temperature of a fuser assembly is higher than a predetermined temperature. If the temperature of the fuser assembly is higher than the predetermined temperature it is determined whether there is a print command. A print sheet is passed through the fuser assembly, and conveyed to a predetermined location when there is no print command. The temperature is again inspected if there is no print command. If the temperature is lower than the predetermined temperature it is determined whether a predetermined time has lapsed. The temperature is again inspected if the predetermined time did not lapse.

Abstract: An image forming apparatus and a method of detecting a home position error are provided. The image forming apparatus includes a plurality of developing units, a cam shaft, and a plurality of cams that are formed on the cam shaft to correspond to the respective developing units. A power transmitting element is installed between the plurality of developing units and the plurality of cams and selectively transmits a rotational force of a driving source to the plurality of developing units according to a rotational phase of the cam shaft. An indicating element is installed on the cam shaft and includes a plurality of indicating units. A sensor senses the plurality of indicating units. A home position error is detected each time when the indicating units pass through the sensor.

Abstract: Disclosed is a method for controlling the temperature of a heat roller and an image forming apparatus based on the same. The image forming apparatus of the present invention includes: a heat roller for heating a printing paper having a toner image formed thereon to completely fuse the toner image to the printing paper; a heat lamp for heating the heat roller; and a controller for controlling the driving of the heat lamp, whereby the heat roller is maintained at a designated target temperature level during a pre-printing period. As such, it becomes possible to prevent a problem with the fusing process caused by low temperature of the heat roller during the pre-printing period for subsequent printing.

Abstract: A method and apparatus are provided for controlling a fixing condition of a printer according to the size and type of paper to be printed in order to improve print quality. The apparatus and method include setting a fixing condition according to a selected paper property of a printer driver, measuring a resistance of a paper being printed, comparing a paper property corresponding to the measured paper resistance with the selected paper property of the printer driver, and resetting the fixing condition according to the paper property corresponding to the measured paper resistance if the paper property corresponding to the measured paper resistance is different from the selected paper condition of the printer driver.

Abstract: An image forming apparatus and a method of detecting a home position error are provided. The image forming apparatus includes a plurality of developing units, a cam shaft, and a plurality of cams that are formed on the cam shaft to correspond to the respective developing units. A power transmitting element is installed between the plurality of developing units and the plurality of cams and selectively transmits a rotational force of a driving source to the plurality of developing units according to a rotational phase of the cam shaft. An indicating element is installed on the cam shaft and includes a plurality of indicating units. A sensor senses the plurality of indicating units. A home position error is detected each time when the indicating units pass through the sensor.

Abstract: A method and apparatus to prevent a transfer roller from being contaminated by toner in an image forming system, the method comprising setting a print region for a scanning operation according to a comparison result between a previous paper size in a paper cassette and a paper size in a driver; determining a current paper size in the paper cassette based on a time when front and rear ends of the paper are detected by a paper feeding sensor; comparing the current paper size in the paper cassette with the paper size in the driver; and if the paper size in the driver size is larger than the paper size in the paper cassette and the print region for the previous paper size in the paper cassette has not been set, determining a separation time of a transfer roller from a transfer belt in consideration of a delay time when the transfer roller is mechanically separated from the transfer belt after a separation command is applied to the transfer roller.

Abstract: Provided is a method and apparatus for controlling paper pickup in an image forming system. The method comprises (a) setting a number of re-attempts of pickup of paper and a number of no-load operations of a transfer belt, respectively, and (b) performing a paper pickup operation repeatedly in accordance with the set number of re-attempts of pickup of paper and the set number of no-load operations of the transfer belt when paper pickup is not successfully performed.

Abstract: Provided is a method and apparatus for preventing a transfer roller from being contaminated by toner in an image forming system, the method comprising determining a size of paper based on a time when front and rear ends of the paper are detected by a paper feeding sensor; comparing a size of an image formed on a photosensitive drum with the size of the paper; and if the size of the paper is the same as or smaller than the size of the image, determining a separation time of a transfer roller from a transfer belt in consideration of a delay time when the transfer roller is mechanically separated from the transfer belt after a separation command is applied to the transfer roller.

Abstract: Disclosed are a method of preventing overheating of a fuser assembly and an apparatus using the same. The method of preventing overheating of a fuser assembly includes inspecting whether a temperature of a fuser assembly is higher than a predetermined temperature. If the temperature of the fuser assembly is higher than the predetermined temperature it is determined whether there is a print command. A print sheet is passed through the fuser assembly, and conveyed to a predetermined location. The temperature is again inspected if there is no print command. If the temperature is lower than the predetermined temperature it is determined whether a predetermined time has lapsed. The temperature is again inspected if the predetermined time did not lapse.

Abstract: Disclosed is a method for controlling the temperature of a heat roller and an image forming apparatus based on the same. The image forming apparatus of the present invention includes: a heat roller for heating a printing paper having a toner image formed thereon to completely fuse the toner image to the printing paper; a heat lamp for heating the heat roller; and a controller for controlling the driving of the heat lamp, whereby the heat roller is maintained at a designated target temperature level during a pre-printing period. As such, it becomes possible to prevent a problem with the fusing process caused by low temperature of the heat roller during the pre-printing period for subsequent printing.

Abstract: A system and method of controlling printing are disclosed. The system and method comprise inputting image data printed by a printing section and a preset value for a print medium's size corresponding to the image data; measuring a size of each print medium being fed to the printing section; comparing the measured value for the each measured print medium and the preset value for the print medium's size; counting the number of times in which difference is occurred between the measured value and the preset value; and determining whether the print mediums fed to the printing section are different from the preset print medium's size by comparing the counted number of times and a predetermined reference number of times.

Abstract: A method and apparatus to control an image input and a recording-medium supply of an image forming apparatus. An aspect of the method comprises periodically generating synchronized demand of an image input into the exposure unit and supplying of a recording medium to the transfer unit, and inputting an image into the exposure unit according to the synchronized demand on image input and supplying a recording medium to the transfer unit according to the synchronized demand on recording-medium supply.

Abstract: A method and apparatus to prevent a transfer roller from being contaminated by toner in an image forming system, the method comprising setting a print region for a scanning operation according to a comparison result between a previous paper size in a paper cassette and a paper size in a driver; determining a current paper size in the paper cassette based on a time when front and rear ends of the paper are detected by a paper feeding sensor; comparing the current paper size in the paper cassette with the paper size in the driver; and if the paper size in the driver size is larger than the paper size in the paper cassette and the print region for the previous paper size in the paper cassette has not been set, determining a separation time of a transfer roller from a transfer belt in consideration of a delay time when the transfer roller is mechanically separated from the transfer belt after a separation command is applied to the transfer roller.