| 摘要 |
<p>PROBLEM TO BE SOLVED: To surely perform an operation preventing a tape jamming in a dew condensation detection or the like by detecting an environmental change in which dew condensation is susceptible to be generated while detecting a temp. and utilizing this detection result to the detecting of dew condensation. SOLUTION: A control part 102 stops a mechanical operation by judging dew condensation based on a humidity detection by a humidity detecting part 101, however and moreover, a temp. detecting part 111 is provided and the part 102 is made to judge the dew condensation based the temp. detection of the part 111. The control part 102 observes detection values from the temp. detecting part 111 in a fixed cycle and selects environmental change data to be determined by the temp. detection value before an environmental change occurs and an elapsed time after the environmental change occurred and the temp. detection value at the observation. When an environmental change is observed, the part 102 outputs a condensation warning and also sets a condensation warning timer in accordance with the value of the environmental change data. When the environmental change is extinguished, the condensation timer starts up to keep on the dew condensation warning outputting in a period correspond to a timer setting time which is previously set.</p> |
