Image forming apparatus with fuser unit

An image forming apparatus, comprising:

• a fuser unit configured to make an image fused to a recording medium;
• a selecting unit configured to select a duplex scanning mode by which both sides of a document sheet are scanned or a single-side scanning mode by which one side of a document sheet is scanned;
• a check unit configured to determine which one of the duplex scanning mode and the single-side scanning mode is selected;
• a duplex scanning unit configured to perform a scan when both sides of a document sheet are scanned upon the duplex scanning mode being selected;
• a setting unit configured to determine power supplied to the fuser unit upon determining, by the check unit, that the single-side scanning mode is selected;
• and
• a supply unit configured to supply the determined power to the fuser unit,
• wherein the determined power is equal to a sum of power consumed by the duplex scanning unit and power that is consumed by the fuser unit upon the duplex scanning mode being selected, and
• wherein the supply unit is configured to change the power supplied to the fuser unit according to which one of the single-side scanning mode and the duplex scanning mode is selected.