Patent ID: 7229147

Claim:
An ink jet printer comprising: an ink jet section for jetting ink from nozzles: a vibration detection section for detecting a jet failure of the nozzles, which is provided ahead in an ink droplet jetting direction from the nozzles; an ink droplet receiving section for receiving an ink droplet jetted from the nozzles, which is interposed between the nozzles and the vibration detection section; and a control section for controlling a maximum diameter of an ink droplet jetted from the nozzles when detecting a jet failure of the nozzles to be larger than that of an ink droplet jetted from the nozzles when recording an image, wherein the ink droplet landing surface of the ink droplet receiving section comprises a plurality of channels which are parallel to one another, and the control section controls the maximum diameter of the ink droplet jetted from the nozzles to be not larger than a width of each of the channels.