Abstract: An example image forming apparatus including a plurality of trays includes a plurality of sensors, a processor, and an image forming unit. The plurality of sensors measure at least one of noise or vibration occurring in the plurality of trays. The processor selects a tray to be used for an image forming operation, based on a remaining lifetime of each of the plurality of trays estimated based on data about at least one of the noise or the vibration measured by the plurality of sensors. The image forming unit performs an image forming operation on a print medium supplied from the selected tray.

Abstract: A printing apparatus includes a multifeed sensor to detect whether printing paper sheets are multifed, a measuring unit to measure an interval between the multifed paper sheets, if the multifeed sensor detects that the printing paper sheets are multifed, and a control unit to delay printing using the measured interval so that a lastly fed printing paper sheet is printed. As a result, a printing error due to multifeed of two or more printing paper sheets can be avoided.

Abstract: A print method of an image forming apparatus that loads at least one sheet of print media in a print media feeding tray, the method including: setting a print-all-paper mode to perform a print operation on the print media loaded in the print media feeding tray without selecting a number of sheets of print media; and performing a print operation on the loaded print media according to the set print-all-paper mode.

Abstract: A print method of an image forming apparatus that loads at least one sheet of print media in a print media feeding tray, the method including: setting a print-all-paper mode to perform a print operation on the print media loaded in the print media feeding tray without selecting a number of sheets of print media; and performing a print operation on the loaded print media according to the set print-all-paper mode.

Abstract: A multi-cropped image forming method of an image forming apparatus includes displaying at least one image, setting a plurality of print regions with regard to the at least one image, and performing printing with respect to the plurality of print regions.

Abstract: A printing apparatus includes a multifeed sensor to detect whether printing paper sheets are multifed, a measuring unit to measure an interval between the multifed paper sheets, if the multifeed sensor detects that the printing paper sheets are multifed, and a control unit to delay printing using the measured interval so that a lastly fed printing paper sheet is printed. As a result, a printing error due to multifeed of two or more printing paper sheets can be avoided.

Abstract: A system and method of controlling the order of printing by receiving a plurality of images to be printed and calculating a density of each of the images, and determining the order of printing of the images using the calculated density. Since images are printed in the image printing order obtained using the density of the images, the time for cooling the thermal print head which prints by applying heat to media is reduced, such that the total print time for printing the images can be reduced and a uniform print quality can be maintained.

Abstract: A system and method is provided for controlling printing in a thermal printer which includes measuring a temperature of a thermal printhead (TPH), heating the TPH by applying a TPH driving strobe pulse when the temperature of the TPH is lower than a first set temperature, and printing on a thermal reactive paper when the temperature of the TPH is equal to or greater than the first set temperature.

Abstract: A system and method is provided for controlling printing in a thermal printer which includes measuring a temperature of a thermal printhead (TPH), heating the TPH by applying a TPH driving strobe pulse when the temperature of the TPH is lower than a first set temperature, and printing on a thermal reactive paper when the temperature of the TPH is equal to or greater than the first set temperature.

Abstract: A system and method of controlling the order of printing by receiving a plurality of images to be printed and calculating a density of each of the images, and determining the order of printing of the images using the calculated density. Since images are printed in the image printing order obtained using the density of the images, the time for cooling the thermal print head which prints by applying heat to media is reduced, such that the total print time for printing the images can be reduced and a uniform print quality can be maintained.