INKJET PRINTER

The present invention provides an inkjet printer which can collect ink mist according to the difference in amounts of ink mist generated at a plurality of respective print heads, and which eliminates the necessity of frequent cleaning and replacement of filters. Vents 35,36 are respectively provided on an upstream side in a conveying direction of a printing medium of the respective print heads 21-1 to 21-4 of a printing part 2, blowout air volume of the respective vents 35 and 36 can be respectively adjusted, collection ports 45, 46 are respectively provided on a downstream side in the conveying direction of the printing medium of the respective print heads 21-1 to 21-4, suction air volume of the respective collection ports 45, 46 can be respectively adjusted, and an ink mist collecting parts 43 are each provided which liquefies and collects ink mist contained in air sucked from any one of the respective collection ports 45, 46 while the air passes through filters 84. The blowout air volumes of the respective print heads 21-1 to 21-4 and the suction air volumes are set to air volumes according to amounts of generated ink mist, and ink mist is collected according to differences in amounts of generated ink mist for respective print head 21-1 to 21-4.