The present invention relates to a liquid ejecting apparatus which may not reduce recording quality and can prevent the paper powder, dusts and other or the like from adhering to an ink jet recording head. When an ink jet printer 1 is in series connection and a recording sheet P is transported, the potentials of an ink jet recording head 16, a supporting member 17, and the recording sheet P are set the same by a potential controller to cause the electric field-free states among these components. Therefore, Coulomb's force generated by an electric field does not act on the paper powders d attached on the recording sheet P, thereby preventing paper powders d from adhering to a nozzle plate 16a. Moreover, when the recording sheet P is not transported, the potential controller forms potentialdifferences (electric fields) among the ink jet recording head 16, the recording sheet P, and the supporting member 17, thereby eliminating the problem that ink mists float.