Patent ID: 8830511

Claim:
An environmental contribution supporting apparatus provided for a system including a printing apparatus and an erasing apparatus that decolors an image formed on a recording medium with a decolorable coloring agent, the environmental contribution supporting apparatus comprising: a duplex-reduction calculating unit configured to calculate a sum of a number of reduced sheets by a duplex printing; an aggregation-reduction calculating unit configured to calculate a sum of a number of reduced sheets by an aggregation printing; a sheet-reduction-ratio calculating unit configured to calculate a sheet reduction ratio from the duplex-reduction calculating unit and the aggregation-reduction calculating unit; a printing-state-character selecting unit configured to select one character from a plurality of characters stored in a memory according to the sheet reduction ratio; a sheet-reuse-ratio calculating unit configured to calculate a sheet reuse ratio from a sum of a number of reused sheets decolored by the erasing apparatus; a reuse-state-character selecting unit configured to select one character from the plurality of characters stored in the memory according to the sheet reuse ratio; a sheet-reduction-message selecting unit configured to select a first message concerning sheet reduction on the basis of the sheet reduction ratio; a sheet-reuse-message selecting unit configured to select a second message concerning sheet reuse on the basis of the sheet reuse ratio; an advice setting unit configured to set order of presentation of the first message and the second message; and a report creating unit configured to edit the character selected by the printing-state-character selecting unit, the character selected by the reuse-state-character selecting unit, and the message set by the advice setting unit into a predetermined form.