When a content write unit records a content on a medium, a control unit controls to record a dummy license which is generated by a dummy license generation unit and an expiration time limit is set into a past time, into the medium. when a plurality of different dot arrangements are used repeatedly in a unit of a predetermined number of the dot arrangements for the same level of gradation of input image data, and thereby makes it possible to print a high-quality image. of 250 mm2s or more, a fatty acid amine salt, an ester, and one or more rust preventive agents selected from the group consisting of a sarcosine-type compound, a nonionic surfactant, a sulfonic acid salt, an amine, a carboxylic acid, a fatty acid amine salt, a carboxylic acid salt, a paraffin wax, an oxidized wax salt, and a boron compound.