Pretreatment device

1. A pretreatment device comprising:

a platen;

a guide configured to guide a conveyance of the platen from a set position at which a recorded medium is set on an upper surface of the platen;

a platen motor configured to drive the platen;

a spray configured to spray a pretreatment agent onto the recording medium set on the upper surface of the platen guided in a first direction by the guide;

an input portion into which is input at least one of an application range of the pretreatment agent onto the recording medium and an application amount of the pretreatment agent;

a processor; and

a memory storing computer-readable instructions for execution by the processor to perform a process including:

setting, on the basis of at least one of the application range and the application amount input into the input portion, a conveyance speed of the platen and a spray duty ratio of the spray, such that the platen is conveyed at one of at least three different speeds,

wherein

the conveyance speed of the platen is the speed when the platen is guided by the guide and moves in the first direction by the platen motor,

the spray duty ratio is a ratio of a spray time during a spray period of the pretreatment agent sprayed by the spray, is set from a predetermined range, and

the pretreatment agent is sprayed before an ink that forms an image.

2. The pretreatment device according to claim 1 , wherein

the application range and the application amount are input into the input portion in the setting, and

the conveyance speed and the spray duty ratio are set on the basis of the application range and the application amount in the setting.

3. The pretreatment device according to claim 1 , wherein

the spray is provided in a plurality in a second direction that is parallel to the upper surface of the platen and intersects the first direction, and

a spraying of the spray is stopped outside the application range with respect to the second direction in the setting.

4. The pretreatment device according to claim 1 , wherein

the spray is provided in a plurality in the first direction.

5. The pretreatment device according to claim 4 , wherein

two of the sprays that are adjacent to each other in the first direction are arranged so as to be displaced with respect to each other in the second direction that intersects the first direction.

6. The pretreatment device according to claim 1 , wherein

a shape of an application region of the spray is an elliptical shape.

7. The pretreatment device according to claim 1 , wherein

the spray is provided with a removable leading end portion having a spraying surface of the pretreatment agent.

8. The pretreatment device according to claim 1 , wherein

the spray is a single fluid spray.

9. The pretreatment device according to claim 1 , wherein

the spray is an air pressure type spray.

10. The pretreatment device according to claim 1 , wherein

the setting of the spray duty ratio includes setting one spray duty ratio of the spray from the predetermined range including a plurality of the spray duty ratio of the spray.

11. A pretreatment device comprising:

a platen;

a guide configured to guide a conveyance of the platen from a set position at which a recorded medium is set on an upper surface of the platen;

a spray configured to spray a pretreatment agent onto the recording medium set on the upper surface of the platen guided in a first direction by the guide;

a platen motor configured to drive the platen;

an input portion into which is input at least one of an application range of the pretreatment agent onto the recording medium and an application amount of the pretreatment agent;

a processor; and

a memory storing computer-readable instructions that, when executed by the processor, to perform a process including:

setting, on the basis of at least one of the application range and the application amount input into the input portion, a conveyance speed of the platen, such that the platen is conveyed at one of at least three different speeds,

wherein

the conveyance speed of the platen is the speed when the platen is guided by the guide and moves in the first direction by the platen motor, and

the pretreatment agent is sprayed before an ink that forms an image.

12. A pretreatment device comprising:

a platen;

a guide configured to guide a conveyance of the platen from a set position at which a recorded medium is set on an upper surface of the platen;

a spray configured to spray a pretreatment agent onto the recording medium set on the upper surface of the platen guided in a first direction by the guide;

a platen motor configured to drive the platen;

an input portion into which is input at least one of an application range of the pretreatment agent onto the recording medium and an application amount of the pretreatment agent;

a processor; and

a memory storing computer-readable instructions for execution by the processor to perform a process including:

setting, on the basis of at least one of the application range and the application amount input into the input portion, at least one of a conveyance speed of the platen and a spray duty ratio of a spray, such that the platen is conveyed at one of at least three different speeds,

wherein

the conveyance speed of the platen is the speed when the platen is guided by the guide and moves in the first direction by the platen motor,

the spray duty ratio is a ratio of a spray time during a spray period of the pretreatment agent sprayed by the spray, and

the pretreatment agent is sprayed before an ink that forms an image.

13. The pretreatment device according to claim 12 , wherein

the setting at least one of the conveyance speed of the platen driven by the platen motor and the spray duty ratio of the spray includes setting at least one of increasing the conveyance speed of the platen driven by the platen motor or decreasing the spray duty ratio of the spray when the application range decreases, and

the setting at least one of the conveyance speed of the platen driven by the platen motor and the spray duty ratio of the spray includes setting at least one of decreasing the conveyance speed of the platen driven by the platen motor or increasing the spray duty ratio of the spray when the application range increases.

14. The pretreatment device according to claim 12 , wherein

the setting at least one of the conveyance speed of the platen driven by the platen motor and the spray duty ratio of the spray includes setting at least one of increasing the conveyance speed of the platen driven by the platen motor or decreasing the spray duty ratio of the spray when the application amount decreases, and

the setting at least one of the conveyance speed of the platen driven by the platen motor and the spray duty ratio of the spray includes setting at least one of decreasing the conveyance speed of the platen driven by the platen motor or increasing the spray duty ratio of the spray when the application amount increases.

15. The pretreatment device according to claim 1 , wherein

the application range is input into the input portion in the setting, and

the conveyance speed and the spray duty ratio are set on the basis of at least the application range in the setting.

16. The pretreatment device according to claim 1 , wherein

the conveyance speed and the spray duty ratio are set in the setting, such that the platen is conveyed at only one of at least the three different speeds.

17. The pretreatment device according to claim 11 , wherein

the conveyance speed is set in the setting, such that the platen is conveyed at only one of at least the three different speeds.

18. The pretreatment device according to claim 12 , wherein

the conveyance speed and the spray duty ratio are set in the setting, such that the platen is conveyed at only one of at least the three different speeds.