US Patent 7839519 Imaging device

An imaging device is configured to operable in a normal print mode and in an economical print mode. The imaging device includes an image storage, a cost calculating system that calculates a normal print cost representing a cost when the image is printed in the normal print mode, an upper limit setting system that sets an upper limit of the print cost. Further provided is an adjustment parameter determining system that determines an adjustment parameter representative of reduced quantity of consumable substances when the image data is printed. The adjustment parameter is calculated based on the upper limit and the normal print cost such that a print cost is suppressed below the upper limit if the image data stored in the image storage is printed in accordance with the adjustment parameter. A printing system is provided to print the image in accordance with the adjustment parameter.