| 摘要 |
In a printer that forms an image on a color thermal recording paper by using a thermal recording head, a preheating region of the recording paper that is used for preheating the thermal recording head in a process prior to formation of the image and disposed of as a cut piece can effectively be used. An image forming control unit preheats a part of the thermal recording head in each end region that contact with the recording paper for heating the thermal recording heat to a proper temperature just before forming an image on the recording paper. While preheating of the thermal recording head, the image forming control unit further controls the thermal recording head for printing arbitrary information such as residual quantity of the recording paper on a portion between preheated portions of the recording paper to be disposed as the cut sheet.
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