Patent ID: 8705098

Claim:
An image forming system having a series tandem configuration, the image forming system comprising: a plurality of image forming apparatuses which are linked to each other, each of the plurality of image forming apparatuses forming an image on a different printing face to perform a job; and a setting changing section on which change instruction data of the job is input; wherein each of the plurality of image forming apparatuses comprises: a storage section which stores job data and image data regarding all pages of the job; and a control section which reads out job data and image data of an already performed job from the storage section, and performs control of performing the job again based on the read out job data and image data; wherein the control section of any one image forming apparatus among the plurality of image forming apparatuses judges whether or not it is necessary to regenerate the image data based on the change instruction data input on the setting changing section and, when there is no need to regenerate the image data, the change instruction data is transmitted to another image forming apparatus; and wherein the control section of the image forming apparatus which receives the change instruction data changes and rewrites job data stored in the storage section of its respective image forming apparatus based on the change instruction data.