| 摘要 |
PROBLEM TO BE SOLVED: To provide a consumables management method and a consumables management system in which the time of exhaustion of toner supplied by a cartridge is estimated exactly, and its exchange is urged. SOLUTION: When a toner low signal 1 is transmitted to a service center 101 from a user's instrument 102, the service center 101 estimate the time of exhaustion of toner based on the type of the cartridge, and the occurrence period of the toner low signal. The user is informed of the estimated result and delivery and recovery of the cartridge by a delivery contractor are performed at the time and date accepted by the user. |
