Inkjet printer

1. An inkjet printer, comprising:

a table on which a recording medium is to be placed;

an ink head that is located above the table and discharges ink toward the recording medium placed on the table;

a carriage that has the ink head mounted thereon and is movable in a main scanning direction; and

an air blower that is mounted on the carriage and blows air toward the recording medium; wherein

the air blower includes:

a case including an inlet opening through which external air is taken inside, an outlet opening through which the external air, taken inside through the inlet opening, is discharged outside, and an opening in a portion facing the table, the case being located at least to one side of the ink head in the main scanning direction;

a fan that is located in the case, absorbs the external air through the inlet opening and sends air through the outlet opening toward the recording medium placed on the table;

a heater that is located in the case and heats the air sent from the fan; and

a heat radiation layer that is exposed outside through the opening and radiates at least a portion of heat generated by the heater.

2. The inkjet printer according to claim 1 , wherein the heat radiation layer is made of a heat radiation paint.

3. The inkjet printer according to claim 2 , wherein the heat radiation paint contains at least a metal oxide.

4. The inkjet printer according to claim 1 , wherein

the case includes an inner space in communication with the inlet opening and the outlet opening and through which the air sent from the fan passes; and

the heater includes a fin located in the inner space.

5. The inkjet printer according to claim 1 , wherein the air blower includes a circuit board including a surface on which the air sent from the fan flows, that is spaced away from the fan so as to be in the case and on an axis of the fan, and that controls the heater.

6. The inkjet printer according to claim 1 , wherein the air blower includes a filter provided between the inlet opening and the fan.

7. The inkjet printer according to claim 1 , wherein

the ink head includes a plurality of nozzles through which the ink is discharged toward the recording medium, the plurality of nozzles being arrayed in a sub scanning direction perpendicular to the main scanning direction;

the outlet opening extends in the sub scanning direction; and

one of two ends of the outlet opening in the sub scanning direction is located outside of the outermost nozzle in one direction of the sub scanning direction among the plurality of nozzles, and the other end of the outlet opening in the sub scanning direction is located outside of the outermost nozzle in the other direction of the sub scanning direction among the plurality of nozzles.

8. The inkjet printer according to claim 7 , wherein

the heat radiation layer extends in the sub scanning direction; and

one of two ends of the heat radiation layer in the sub scanning direction is located outside of the outermost nozzle in one direction of the sub scanning direction among the plurality of nozzles, and the other end of the heat radiation layer in the sub scanning direction is located outside of the outermost nozzle in the other direction of the sub scanning direction among the plurality of nozzles.

9. The inkjet printer according to claim 1 , wherein

the heater includes a heat source that generates heat, a top heat transfer plate located above the heat source, a bottom heat transfer plate located below the heat source, and a cushioning member located between the heat source and the top heat transfer plate or between the heat source and the bottom heat transfer plate; and

the heat radiation layer is located on a surface, of the bottom heat transfer plate, facing the table.

10. The inkjet printer according to claim 9 , wherein the heat source is a ceramic heater.