| 摘要 |
A color thermal printer has thermal heads for recording yellow, magenta and cyan mono-color image, respectively. An mono-color image data of each mono-color image is processed in image data processing section, and thereafter sent to the thermal head. A correction CPU for each mono-color image reads out mono-color image data at each line to calculate a transport friction fluctuation at the thermal head between recording line and a first previous line thereto. Further, the correction CPU calculates a correction of heat energy of the thermal head on the basis of all of the transport friction fluctuation of the thermal heads.
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