| 摘要 |
An ink temperature is calculated based on an ink viscosity. In a zone where the ink temperature is less than 15° C., a first value is set to a proportionality coefficient. In a zone where the ink temperature is equal to or higher than 15° C. and is less than 25° C., a second value is set to the proportionality coefficient. In a zone where the ink temperature is equal to or higher than 25° C. and is less than 40° C., a third value is set to the proportionality coefficient. A drive voltage for a printing head (piezoelectric elements) is set by adding a proportionality term proportional to the ink temperature by the proportionality coefficient to a reference value of the drive voltage. |
