| 摘要 |
A printing apparatus which a printing material container is detachably mounted to. The printing material container has having a memory and a piezoelectric element for detecting the amount of a printing material contained therein. The printing apparatus includes an acquiring unit that acquires frequency information regarding the frequency of a driving signal for driving the piezoelectric element from the memory; a supplying unit that supplies the driving signal having a frequency that is determined based on the frequency information to the piezoelectric element; a detecting unit that detects a response signal that is outputted in response to vibration of the piezoelectric element after the stopping of supply of the driving signal; a measuring unit that measures vibration frequency of the piezoelectric element contained in the response signal; and a determining unit that determines whether the printing material is present in the printing material container of not based on the vibration frequency.
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