| 摘要 |
<p>PURPOSE:To prevent the degradation of printing quality caused by the thermal deterioration of the LED element of a printer head and the decreasing of a light emitting quantity by controlling the turning-on and -off of a cooling fan and the start and stop of printing, based on the information of a temp. sensor. CONSTITUTION:The temp. sensor 2 is attached to the printer head 1, and the cooling fan 3 is arranged in the vicinity of the printer head 1. The sensor 2 serves as a thermistor. The information of the sensor 2 is inputted into a cooling fan control part 4 and a printing control part 5. The control part 4 controls the turning-on and -off of the fan 3, based on the information of the sensor 2 to cool the printer head 3. On the other hand, the control part 5 controls the start and stop of the printing and the display of printer inner information to a display part 6, based on the information of the sensor 2. When the temp. of the printer head 1 is higher than that of a set value, a temp. state for the display part 6 is displayed and the printing is carried out in wait for the dropping of the temp.</p> |
