Abstract: A printer includes a recording unit that executes on a recording medium, a recording operation under a sublimation transfer scheme; a conveying unit that using a protrusion roller having protrusions protruding toward an outer periphery and abutting a first surface of the recording medium, conveys the recording medium to a recording position for the recording operation; a pseudo recorded image data producing unit that produces pseudo recorded image data that includes pseudo pixels obtained by correcting a density of each predetermined pixel that is determined corresponding to an arrangement pattern of the protrusions on the protrusion roller and is determined from among pixels to be recorded in a second area that excludes a first area that is in contact with the protrusions, on the first surface of the conveyed recording medium; and a recording control unit that controls the recording unit based on the pseudo recorded image data.

Abstract: A printing apparatus is provided which uses, as a print head, a thermal head having heating elements arrayed in a line perpendicular to the traveling direction of a printing medium. Correspondingly pixel data, at either end, or near the end, of each line of image data going to be printed, data on heat storage in the thermal head (108) is calculated for each line on the basis of data on heat storage in the print head for a preceding line, and the data on heat storage in the print head for each line is compared with predetermined-temperature data. When any of the stored-heat data is larger than the predetermined-temperature data, energy to the heating element (113) is decreased. The image data is printed on the printing medium (104) with the energy for application to the heating element (113) being kept decreased.

Abstract: A printing apparatus is provided which uses, as a print head, a thermal head having heating elements arrayed in a line perpendicular to the traveling direction of a printing medium. Correspondingly pixel data, at either end, or near the end, of each line of image data going to be printed, data on heat storage in the thermal head (108) is calculated for each line on the basis of data on heat storage in the print head for a preceding line, and the data on heat storage in the print head for each line is compared with predetermined-temperature data. When any of the stored-heat data is larger than the predetermined-temperature data, energy to the heating element (113) is decreased. The image data is printed on the printing medium (104) with the energy for application to the heating element (113) being kept decreased.

Abstract: A thermal printer comprises: a ROM 11 for storing a heat history correction table; a RAM 12 for storing the density-related energizing time data for the first and second preceding lines printed immediately before the current line to be printed and the density-related energizing time data before a correction for the current line to be printed which includes a target dot T; and a control section for comparing the density-related energizing time data for the first and second preceding lines and the density-related energizing time data before a correction for both adjacent dots T1 and T2 of the target dot T with the density-related energizing time data before a correction for the target dot T to select reference data, and further for performing a corrective operation for the pre-correction energizing time data for the target dot T using thus selected reference data to calculate energizing time data for the target dot T to be printed, whereby it is possible to prevent the temperature of a thermal head from being r

Abstract: A print system has a printer host and a printer. The printer host generates print data based on image data and outputs the print data to the printer. The printer interprets the received print data and prints an image based on the print data. The print system calculates a processing time for print data generation, output and interpretation. Consequently, it is possible to know the processing times for each stage in the printing process.

Abstract: A method for ribbon color thermal printing and encoding cards, particularly pre-paid, smart cards, chip cards, and the like is disclosed. The method includes the steps of detecting the printing ribbon color, controlling the thermal printing energy feed and driving the printing, encoding and detection, in which the encoding is carried out at a location upstream of the thermal printing. The color detection is carried out at a location between the encoding and/or thermal printing, and at the same time as the printing.

Abstract: In a heat transfer recording apparatus for printing images on recording paper by bringing ink film in contact with recording paper and heating them by means of a thermal head, the preheating time of the thermal head is decided based on the thermal head temperature detected by a thermistor and the accumulated power supply time obtained as a product of the number of times power is supplied to the thermal head and the detection interval, thus to achieve a uniform image quality by eliminating the effect of the thermal head heat accumulation even in case of forming multiple images successively on multiple sheets of recording paper.