| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and device for collecting information by using an image forming device, which is capable of managing coupons, etc., issued by using the image forming device and which is capable of collecting, etc., information attached to it. SOLUTION: A center 20 manages the number of the coupons issued by the image forming device 10 and the number of coupons used at a store 30. |
