Inkjet printer

An inkjet printer comprising:

• an inkjet head configured to eject ink to a print medium being conveyed and arranged such that an ejection surface from which the ink is ejected is a non-horizontal surface;
• a mist collector including at least a suction port configured to suck air from a side of the inkjet head on which the print medium passes;
• and
• a controller configured to control the mist collector, wherein
• a space on the side of the inkjet head on which the print medium passes is an open space in which nothing but the print medium passing is arranged within a prescribed distance from the inkjet head,
• the controller is configured to control the mist collector to perform a mist collection operation of sucking air containing ink mist via the suction port in a state where the print medium and the inkjet head are facing each other,
• the mist collector further includes a blow port configured to blow out air toward the side of the inkjet head on which the print medium passes,
• in the mist collection operation, the controller is configured to control the mist collector to suck the air containing the ink mist via the suction port while blowing out air from the blow port,
• the inkjet head includes a plurality of inkjet heads,
• the suction port includes a plurality of suction ports provided to the plurality of inkjet heads, respectively,
• the blow port includes a plurality of blow ports provided to the plurality of inkjet heads, respectively,
• the controller is configured to control the mist collector to adjust a degree of mist collection in the mist collection operation for each of the plurality of inkjet heads, based on an ink mist generation amount in each of the plurality of inkjet heads,
• at least some of the plurality of inkjet heads are connected to a common ink tank, and are arranged such that a water head difference between each of the some of the plurality of inkjet heads and the common ink tank varies between the some of the plurality of inkjet heads, and
• the controller is configured to use the water head difference between each of the some of the plurality of inkjet heads and the common ink tank for calculation of the ink mist generation amount in each of the some of the plurality of inkjet heads connected to the common ink tank.

An inkjet printer comprising:

• an inkjet head configured to eject ink to a print medium being conveyed and arranged such that an ejection surface from which the ink is ejected is a non-horizontal surface;
• a mist collector including at least a suction port configured to suck air from a side of the inkjet head on which the print medium passes;
• and
• a controller configured to control the mist collector, wherein
• a space on the side of the inkjet head on which the print medium passes is an open space in which nothing but the print medium passing is arranged within a prescribed distance from the inkjet head,
• the controller is configured to control the mist collector to perform a mist collection operation of sucking air containing ink mist via the suction port in a state where the print medium and the inkjet head are facing each other,
• the suction port is arranged downstream of the inkjet head in a conveyance direction of the print medium,
• the inkjet head includes a plurality of inkjet heads,
• the suction port includes a plurality of suction ports provided to the plurality of inkjet heads, respectively,
• the controller is configured to control the mist collector to adjust a degree of mist collection in the mist collection operation for each of the plurality of inkjet heads, based on an ink mist generation amount in each of the plurality of inkjet heads,
• at least some of the plurality of inkjet heads are connected to a common ink tank, and are arranged such that a water head difference between each of the some of the plurality of inkjet heads and the common ink tank varies between the some of the plurality of inkjet heads, and
• the controller is configured to use the water head difference between each of the some of the plurality of inkjet heads and the common ink tank for calculation of the ink mist generation amount in the each of the some of the plurality of inkjet heads connected to the common ink tank.