Patent ID: 7837114

Claim:
A control method for an image forming system that includes first and second image forming devices performing image formation on sheets and at least one post-processing device performing a post processing on the sheets which have been subjected to image formation by the first and second image forming devices, comprising: dividing one print job into a first print job for the first image forming device and a second print job for the second image forming device; performing image formation on the sheet based on the first print job with the first image forming device; writing attribute information including job information for indicating a post processing to be executed and identification information for identifying a page order of the sheets in the one print job, in a memory affixed to the sheet which has been subjected to the image formation by the first image forming device and which is to be placed on the post-processing device; performing image formation on the sheet based on the second print job with the second image forming device; writing attribute information including job information for indicating a post processing to be executed and identification information for identifying a page order of the sheets in the one print job, in a memory affixed to the sheet which has been subjected to the image formation by the second image forming device and which is to be placed on the post-processing device; reading out with the post-processing device the attribute information from memories affixed to the sheets in a sheet bundle placed on the post-processing device; selectively feeding the sheets from the sheet bundle placed on the post-processing device based on the read-out attribute information; and executing the post processing on the fed sheets.