Patent ID: 8985726
Filing Date: 2015-03-24
Classification: B41J

Abstract:
1. An inkjet recording apparatus comprising: a plurality of nozzles each of which can eject ink droplets toward a recording medium, and configured to have a meniscus of ink formed therein; pressurizing chambers that communicate with the plurality of nozzles, respectively, and into which ink is charged; a piezoelectric element that is deformed by a driving voltage being applied, and operates to eject the ink having been charged into the pressurizing chambers, as ink droplets, from the nozzles; an ambient condition obtaining portion that can obtain an ambient condition; an application portion that applies the driving voltage to the piezoelectric element; and a control portion that causes the application portion to output an ejection driving voltage by which the piezoelectric element is deformed so as to eject droplets from the nozzles in a printing period in a printing state, and that causes the application portion to output a vibration driving voltage by which the piezoelectric element is vibrated a predetermined number of times so as to vibrate a meniscus in each nozzle in a non-printing period between printing periods in the printing state, wherein the control portion changes the number of times the piezoelectric element is vibrated in the non-printing period, based on the ambient condition obtained by the ambient condition obtaining portion and causes the application portion to output a vibration driving voltage by which the piezoelectric element is vibrated the number of times having been changed, the ambient condition obtaining portion can obtain a humidity condition, the control portion executes: the control portion can switch between the first mode and the second mode, based on the humidity condition obtained by the ambient condition obtaining portion.