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Thermal recording device, image forming method and printed matter
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A technology for thermal recording and printing, which can be used in printing and other directions to solve problems such as complex calculations
Inactive Publication Date: 2011-05-11
DAI NIPPON PRINTING CO LTD
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[0008] However, in the above-mentioned first method, complicated calculations for forming extremely thin lines are required
[0009] In addition, in the above-mentioned second method, since it is formed by the transfer method or the direct method by repeating the process (primary charging) of the imaging process including the process of charging the image carrier such as the printed photoreceptor, dielectric, etc. Image forming devices for color images are unique, so it is not suitable for thermal recording devices, etc.
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no. 2 approach
[0109] Next, a second preferred embodiment of the thermosensitive recording apparatus according to the present invention will be described.
[0110] In the second embodiment, the outline of the configuration and processing contents of the thermal printer 1 is the same as that of the first embodiment, such as figure 1 with 2 as shown.
[0111] The second embodiment is to make a horizontal line pattern after the pattern definition, implement offset processing on the horizontal line pattern, and perform polar coordinate transformation and heat storage correction processing on the two horizontal line patterns, and print two circular ultra-fine image of lines.
[0112] Next, the flow of processing in the case of generating a circular ultra-thin line by pattern definition will be described. Figure 12 is a flowchart showing the processing flow of the image processing 23 according to the first embodiment, Figure 13 is the pattern image G 11 An example plot of 50, Figure 14 is...
no. 3 approach
[0134] Next, a third preferred embodiment of the thermosensitive recording apparatus according to the present invention will be described.
[0135] In the third embodiment, the outline of the configuration and processing contents of the thermal printer 1 is the same as that of the first embodiment, as figure 1 with figure 2 as shown.
[0136] The third embodiment changes a part of the flow of the image processing 23 of the second embodiment, for example, an extremely thin line obtained by performing CMYK / RGB-gray conversion, gray scale conversion, and halftone conversion on the input image data 3 The image undergoes a polar transformation to generate circular, extremely thin lines.
[0137] Next, the processing flow in the case of generating a circular ultra-thin line from an input image will be described. Figure 27 is a flowchart showing the processing flow of the image processing 23 according to the second embodiment.
[0138] The image input unit 5 of the thermal prin...
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Abstract
A control section 9 of a thermal printer 1 performs CMYK / RGB-gray conversion, gradation conversion, halftone conversion for an input image data 3, and performs shift processing and rotation processing in accordance with the resolution and the number of lines of the thermal printer 1. The control section 9 performs heat-accumulation correction processing for the image data subjected to the halftone processing, and the image data subjected to the shift processing and the rotation processing, and then prints a hairline image. When a circular hairline is printed, the control section 9 defines a pattern of circular hairlines, and produces a horizontal hairline pattern. Further, the control section 9 shifts the produced horizontal hairline pattern downward to thereby produce another horizontal hairline pattern, performs polar coordinate conversion for the produced horizontal hairline patterns to thereby produce two circular hairlines, performs the heat-accumulation correction processing forthe two produced circular hairlines, and prints them.
Description
technical field [0001] The present invention relates to a thermosensitive recording device and the like which reduce the influence of heat accumulated on a thermal head and print high-definition ultra-fine hairline images and circular ultra-fine images at low resolution. Wire. Background technique [0002] A thermal printer is a device that heats the backside of an ink ribbon stacked on recording paper with a thermal head, and thermally transfers ink from the ink ribbon to recording paper to perform printing. The ink ribbon is a thermal transfer sheet having a heat-fusible colored ink layer, and the recording paper is an image-receiving sheet such as paper or plastic sheet. [0003] A thermal head consists of a plurality of heating resistors formed in a row on a substrate. Thermal printers are equipped with multiple ink ribbons, and can perform color printing by superimposing and transferring the inks of ink ribbons of multiple colors to the same position on the recording ...
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