Patent ID: 8842308
Filing Date: 2014-09-23
Classification: H04N

Abstract:
1. An image forming device having a plurality of functions, comprising: a power measuring unit to measure a power consumption of the image forming device by measuring a total power entering the image forming device from a direct connection to an external power source, the power measuring unit including a power supply unit internal to the power measuring unit; a power consumption computing unit to compute a power consumption for execution of one of the plurality of functions with power supplied from a power supply unit external to the power measuring unit, based on the power consumption measured by the power measuring unit; a display unit to display the power consumption computed by the power consumption computing unit; a storage unit to store a target power consumption range for each of the plurality of functions; a measuring mode selecting unit to select one of a measuring mode in which electric power is supplied to the power measuring unit via the internal power supply unit and a non-measurement mode in which electric power is not supplied to the power measuring unit via the internal power supply unit; and a power consumption estimation unit to generate an estimated power consumption for execution of one of the plurality of functions in the non-measurement mode, wherein the measuring mode selecting unit selects the measuring mode when the estimated power consumption in the non-measurement mode generated by the power consumption estimation unit is beyond a target power consumption range for a corresponding one of the plurality of functions from the storage unit.