PRINTING DEVICE, CONTROL METHOD THEREFOR, AND REEL TYPE PRINTING CONSUMABLE ASSEMBLY

摘要

A printing device, a control method therefor, and a reel type printing consumable assembly, said printing device comprising a printing unit (15), a driving unit (16), a storage unit (13) and a control unit (11), and said control method comprising: judging whether an installed printing consumable is a valid printing consumable or not; when the printing consumable is a valid printing consumable, making a determination to use the printing consumable to execute printing; before executing the printing, acquiring a stored first remaining length of the printing consumable; after executing the printing, calculating a second remaining length of the printing consumable; and storing the second remaining length in the printing device. In addition, a reel type printing consumable assembly used with the printing device includes a support shaft (22) and a storage card (24); wound around the support shaft (22) is a printing consumable (R); the flag, the total length and the ID number of the printing consumable (R) are all stored in the storage card (24). Using said printing device and the control method therefor solves the problem of user operations being complicated by the fact that the remaining lengths of printing consumables are manually input by the user.