Problems such as blocking are suppressed and more appropriately perform printing, in a case of using a configuration in which each medium is wound after printing. A printing device for performing printing on a medium includes a printing head configured to form an overcoat layer on the medium, an after-heater configured to heat the medium having the overcoat layer formed thereon, and a winding roller which is a medium winding unit configured to wind the medium heated by the after-heater, and the after-heater heats the medium such that the temperature of the overcoat layer becomes a temperature equal to or higher than a glass-transition point, and the winding roller winds the medium having a state where the temperature of the overcoat layer is a temperature lower than the glass-transition point.

A drying device includes a contact heater unit to contact and heat a medium. The contact heater unit includes a plurality of heating members each having a curved contact face to contact the medium among plural heating members of the plurality of heating members to contact a first surface of the medium opposite a second surface of the medium on which liquid is applied. The plurality of heating members includes a first heating member and a plurality of second heating members. The first heating member has a maximum contact distance to contact the medium. The plurality of second heating members is disposed upstream from the first heating member in a direction of conveyance of the medium. Two heating members of the plurality of second heating members immediately upstream from the first heating member in the direction of conveyance of the medium contact the first surface of the medium.

Provided is a droplet ejection device, including: a droplet ejection head in which a longitudinal direction thereof is aligned with a width direction of a recording medium and that forms an image by ejecting a droplet onto the recording medium to be transported along a transporting path; and three or more movable infrared ray irradiation devices that are movably disposed on a downstream side of the recording medium in a transporting direction in relation to the droplet ejection head and that evaporate moisture in the image formed on the recording medium.

A conveying device includes a restrictor disposed at a predetermined distance from a surface of a sheet material conveyed along a sheet-material conveyance path. The restrictor includes a sheet-material opposing portion that opposes the sheet-material conveyance path. The sheet-material opposing portion is movable to a downstream side in a sheet-material conveyance direction.

A drying device includes: a dielectric heating unit configured to apply an alternating electrical field to a medium onto which a liquid containing a conductive material, water, and a solvent has been discharged, and perform dielectric heating of the liquid; and a conductive member disposed either to make contact with or to be close to the medium to which the alternating electrical field is being applied.

A conveying device includes a blower and a conveyor. The blower blows air to a sheet material. The conveyor conveys the sheet material through a blowing region of the blower. The conveyor includes a surface movable member and a presser. The surface movable member conveys the sheet material with movement of a surface of the surface movable member, with a back side of the sheet material supported with the surface movable member. The presser presses at least a portion of a leading end of the sheet material toward the surface movable member in at least an area from a position upstream from the blowing region in a conveyance direction of the sheet material to a position in the blowing region of the blower.

A conveying device includes a blower, a conveyor, and an upstream blower. The blower blows air to a sheet material. The conveyor includes a sandwiching unit to sandwich the sheet material, and conveys the sheet material to a blowing region of the blower. The upstream blower blows air toward a downstream side in a conveyance direction of the sheet material, from an upstream side of the blowing region in the conveyance direction of the sheet material to the blowing region.

A printing apparatus includes a plasma processor, a recording unit, and a heating unit. The plasma processor performs plasma processing on a processing target matter. The recording unit discharges ink and records dots onto the processing target matter on which the plasma processing has been performed. The heating unit heats an ink discharge region of the processing target matter.

A gas impingement device includes a first surface including a pattern of a plurality of gas outlets, the pattern including a number of substantially parallel rows of gas outlets, the rows arranged in a direction, which direction is at a skew angle α with a front edge of the first surface of the gas impingement device. A recording substrate treatment apparatus and a printing system including such a gas impingement device and a method of drying a recording substrate by using the gas impingement device are also disclosed.

A medium support portion including a support face that supports a medium, a heater configured to heat a surface of the medium remotely from the support face, an airflow supply unit configured to supply airflow, along the surface of the medium, to a region between the medium and the heater, a plurality of heater support portions that support the heater, and at least one first temperature detection unit located remotely from the support face and configured to detect a spatial temperature in the region that is in contact with the surface of the medium are provided, in which the at least one first temperature detection unit is disposed between two mutually adjacent heater support portions among the plurality of heater support portions.