Patent ID: 7313602

Claim:
A computer system for managing collection information of waste expendables used in an office device, comprising: a providing unit for providing collection request window information which causes a terminal apparatus that communicates with the providing unit through a predetermined communication line to display a collection request window for designating waste expendables to be collected and for designating a collection method for collecting the waste expendables from among a plurality of collection methods, including a lump-sum collection of the waste expendables and an individual collection of the waste expendables; an issue unit for issuing identification information based on collection request information indicative of a user and a collection method input indicative of a collection method as the lump-sum collection or the individual collection through the collection request window provided by said providing unit; an input unit for inputting identification information read from an identification attached to collected articles or a container which is capable of storing a predetermined number of the waste expendables, the identification information read being based on the identification information issued by the issuing unit; an incentive determination unit for determining an incentive in accordance with the identification information input by said input unit, wherein an incentive corresponding to the lump-sum collection and an incentive corresponding to the individual collection are different from each other even if the same quantities of the waste expendables are entered by the user through the collection request window for the collection method and collected; and a storing unit for storing the incentive determined in a collection history in a database associated with the user.