| 摘要 |
PURPOSE:To adjust the titled head simply by directly viewing a condition of a recording dot by using printing driving voltage at the time when a printing condition is unstable as the minimum driving voltage and printing characters with voltage value of fixed times as much as the minimum driving voltage. CONSTITUTION:The intermittent injection ink jet head is incorporated into a recording device, voltage is slowly increased from low printing driving voltage incapable of recording in recording frequency, where dot intervals in the scanning direction are 10-0.1mm./dot, the driving voltage at the time when the recording dots on recording paper begin to be recorded unstably is used as the minimum driving voltage, and the minimum driving voltage is obtained every each channel. The driving voltage acquired by multiplying the minimum driving voltage at every each channel by predetermined magnification is employed as normal driving voltage, and the driving voltage of each channel is adjusted to normal driving voltage, and printed. Accordingly, a special observing device is not required, and printing having excellent recording quality is obtained. |
