Title:
HEAT TRANSFER PRINTER AND CONTROL METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2016/151971
Kind Code:
A1
Abstract:
In the present invention, when printing an image of a size larger than that which can be transferred in one operation by sequentially transferring a plurality of partial images and joining the same, overlapping regions of the respective partial images are made to be as narrow as possible and the occurrence of color changes in the overlapping regions is suppressed. Color image data to be printed is divided into image data of two partial images that each have an end section which includes an overlapping region which overlaps the other end section and which conforms to the other end section with respect to colors of ink to be transferred to paper. Color values in the overlapping regions of the color image data are converted using a color conversion coefficient group created beforehand for positions on the overlapping regions so as to cancel changes in the colors in the overlapping regions due to the two partial images being transferred in an overlapping manner. The image data of the two partial images is corrected by adjusting the color values in the converted overlapping regions using correction coefficients for the printing density at each position on the overlapping regions. In accordance with the image data of the corrected two partial images, the two partial images are sequentially transferred so that the respective overlapping regions overlap each other, thereby forming a color image.
Inventors:
YAMAZAKI TAKESHI (JP)
Application Number:
PCT/JP2015/086382
Publication Date:
September 29, 2016
Filing Date:
December 25, 2015
Export Citation:
Assignee:
CITIZEN HOLDINGS CO LTD (JP)
CITIZEN SYSTEMS JAPAN CO LTD (JP)
CITIZEN SYSTEMS JAPAN CO LTD (JP)
International Classes:
B41J2/325; B41J2/36
Foreign References:
| JPH06297737A | 1994-10-25 | |||
| JPH1058732A | 1998-03-03 | |||
| JPH07108691A | 1995-04-25 | |||
| JP2002001939A | 2002-01-08 | |||
| JP2006270771A | 2006-10-05 |
Other References:
See also references of EP 3275668A4
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
Aoki 篤 (JP)
Aoki 篤 (JP)
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