Printing method and printing device

A printing device that prints on a transfer medium in order to perform an adhesive application step that applies an adhesive on undercoat ink that was overlaid on an image that was formed on the transfer medium, and a transfer step that transfers the image to a transfer target medium by attaching the adhesive to the transfer target medium, the printing device comprising:

• a first inkjet head that ejects colored ink;
• a second inkjet head that ejects the undercoat ink;
• a drive section configured to move the second inkjet head in a first direction relative to the transfer medium;
• and
• a control section that controls ejection of the colored ink from the first inkjet head, ejection of the undercoat ink from the second inkjet head, and the drive section, wherein
• the control section performs control to form the image on the transfer medium with the colored ink ejected from the first inkjet head, and to overlay the undercoat ink ejected from the second inkjet head on the image,
• assuming that a region where the adhesive is applied to the transfer medium at the same timing in the adhesive application step is a process unit region, the process unit region includes a first region and a second region where the undercoat ink is overlaid on the image after the first region, and
• the control section causes the ejection amount of the undercoat ink per unit area with respect to the second region to be less than the ejection amount of the undercoat ink per unit area with respect to the first region.