Patent ID: 7519837

Claim:
An image forming device, comprising: at least one first component of the image forming device to draw a first amount of power; at least one second component of the image forming device; and a power controller of the image forming device for allocating a second amount of power to the at least one second component to maintain a sum of the first amount of power and the second amount of power substantially constant, the second amount of power being a varying amount of power to maintain the sum of the first amount of power and the second amount of power substantially constant, wherein the device further includes: a current monitor that measures the amount of current consumed by the first and second components; and a voltage monitor that measures the amount of voltage available to the device, and wherein the measurements of current and voltage are used in allocating the second amount of power to the at least one second component, wherein the measured current and the measured voltage determine a measured power value, and wherein the measured power value is subtracted from a desired power value to determine the power to be allocated to the at least one second component.