Patent ID: 8810819

Claim:
An image forming system comprising: a plurality of image forming devices each of which forms an image corresponding to image data, each of the plurality of image forming devices including a memory that stores one or more pieces of image data, a determining unit that determines whether or not usage of the memory of the image forming device is larger than a threshold, a selecting unit that selects, if the determining unit determines that usage of the memory is larger than the threshold, a piece of image data to be transferred from among the pieces of image data stored in the memory, a specifying unit that specifies a specific image forming device to which the piece of image data selected by the selecting unit is to be transferred among the other image forming devices, and a transferring unit that transfers the piece of image data selected by the selecting unit to the specific image forming device specified by the specifying unit, wherein the determining unit performs the determination at a time when the image forming device is operating in a power saving mode, when the memory of the image forming device stores the piece of image data.