| 摘要 |
PROBLEM TO BE SOLVED: To judge the possibility of recycle automatically based on information concerning the date of starting use, the number of print sheets, and the like, stored in the storage section of a cartridge, and to manage/decide the possibility of recycle of cartridge or the lifetime of the cartridge itself with minimum necessary cost and labor while utilizing the environmental resources efficiently. SOLUTION: At the time of judging recycle of a cartridge being loaded removably to the printer body, information concerning the date of starting use, the number of print sheets, and the like, stored in the storage section built in the cartridge is read out and a decision is made whether the information thus read out exceeds a predetermined value or not thus judging whether the cartridge can be recycled or not. Possibility of recycle can thereby be judged efficiently and the environmental resources can be utilized efficiently. |
