When external forces are applied to both a base material layer and a second ink layer in directions away from each other in a first state in which a thermal transfer recording medium has been heated to a temperature higher than or equal to a first temperature and lower than or equal to a second temperature and subsequently cooled to a temperature lower than or equal to a third temperature, a breakage occurs between a first ink layer and the second ink layer or within the second ink layer. When the external forces are applied in a second state in which the thermal transfer recording medium has been heated to a temperature higher than the second temperature and subsequently cooled to a temperature lower than or equal to the third temperature, a breakage occurs between the first ink layer and the base material layer or within the first ink layer.

A thermal transfer recording medium includes: a base material layer; a welding layer; a first thermal transfer layer; and a second thermal transfer layer. The base material layer has a first surface and a second surface. The welding layer, the first thermal transfer layer, and the second thermal transfer layer are in direct contact with each other and are laminated in this order on the first surface of the base material layer. The welding layer has a solubility parameter higher than a solubility parameter of each of the base material layer and the first thermal transfer layer.

A thermal transfer ink ribbon includes a backcoat layer, a ribbon base layer formed on the backcoat layer, a release layer formed on the ribbon base layer and containing resin and wax, an ink layer formed on the release layer and containing a first resin and a second resin, an aluminum layer formed on the ink layer, and an adhesive layer formed on the aluminum layer and containing resin and wax. The first resin is transparent or translucent and contains at least one of polyester resin, styrene-acrylic resin, and polyethylene resin. The second resin is transparent or translucent and contains at least one of polyurethane resin, polypropylene resin, acrylic resin, and methacrylic resin.

Micro characters are expressed by a thermal fusion transfer technique. In a printed matter manufacturing method, a printed matter is manufactured by heating a thermal transfer sheet in accordance with image data, the thermal transfer sheet including a base member, a release layer disposed on the base member and containing a wavelength conversion material that emits visible light with excitation by invisible light, and a thermally fusible ink layer disposed on the release layer, and by transferring the thermally fusible ink layer to a transfer-receiving body. In this method, the image data includes a first pattern and a second pattern. The second pattern is disposed on the first pattern and has a maximum width of a predetermined value or less.

According to an embodiment, a printer apparatus sets a feeding amount when ejecting label paper from a paper ejection port of an attachment in accordance with a distance from a paper ejection port to the paper ejection port of the attachment. Further, the printer apparatus sets a back-feeding amount when reversely feeding the label paper after printing ejected from the paper ejection port of the attachment to a next printing position in accordance with presence or absence of a head-up function of the printer apparatus.

According to an embodiment, a printer apparatus sets a feeding amount when ejecting label paper from a paper ejection port of an attachment in accordance with a distance from a paper ejection port to the paper ejection port of the attachment. Further, the printer apparatus sets a back-feeding amount when reversely feeding the label paper after printing ejected from the paper ejection port of the attachment to a next printing position in accordance with presence or absence of a head-up function of the printer apparatus.