| 摘要 |
PROBLEM TO BE SOLVED: To carry out uniform recording over the whole of an image by a method wherein frequent switching of driving energy of a recording head is prevented from being generated in driving control in which driving voltage of the recording head is changed according to peripheral temperature of an ink jet type recording head. SOLUTION: Driving voltage is held at V2 until temperature drops to a first threshold value T1 sufficiently lower than a second threshold value T2 though the temperature is slightly fluctuated after temperature around a recording head exceeds the second threshold value T2, and a head driving voltage is changed from V1 to V2. Though temperature slightly ascends after the temperature is lower than the first threshold value T1, and the head driving voltage is changed from V2 to V1, the driving voltage is held at V1 until the temperature ascends to the second threshold value T2 sufficiently higher than T1 though the temperature slightly ascends. |
