Patent ID: 7184166

Claim:
A printing device for printing on a printing medium comprising: a printing-medium unit including a printing medium on which printing is conducted by a printing device body and by using ink, and printing-medium storage means capable of storing various information, said printing-medium storage means storing printing-medium-type information relating to a type of said printing medium provided in said printing-medium unit, said printing-medium-type information being stored in said printing-medium storage means before said printing-medium unit is attached to said printing device body; an ink unit containing ink and comprising ink storage means capable of storing various information, said ink storage means storing ink-type information relating to a type of said ink contained in said ink unit, said ink-type information being stored in said ink storage means before said ink unit is attached to said printing device body; and said printing device body to/from which said printing-medium unit and said ink unit are attachable/detachable, said printing device body reading-in said printing-medium-type information and said ink-type information, and determining suitability between said printing medium provided in said printing-medium unit and said ink contained in said ink unit.