Patent ID: 7845750

Claim:
A printer, including plural mounting portions to which plural ink cartridges each of which contains ink having a color different from each other are to be attached respectively, each of the plural mounting portions to which each of the plural ink cartridges containing the ink having an ink type different from each other is to be attached, wherein when a first one of the plural ink cartridges is attached to one of the plural mounting portions and the attachment of the first one of the plural ink cartridges is an initial attachment to the printer, the printer is set to use an ink type of the first one of the plural ink cartridges; and when a second one of the plural ink cartridges is attached to the one of the plural mounting portions in replacement of the first one of the plural ink cartridges and an ink type of the second one of the ink cartridges is different from the ink type of the first one of the ink cartridges, the printer is prohibited from printing with the ink of the second one of the plural ink cartridges, wherein the ink type of the first one of the ink cartridges is either dye ink or pigment ink, and wherein the ink type of the second one of the ink cartridges is either dye ink or pigment ink.