Patent ID: 8965234
Filing Date: 2015-02-24
Classification: G03G

Abstract:
1. An image forming system comprising: a first image forming apparatus configured to form images on one side and both sides of a sheet; a second image forming apparatus connected to said first image forming apparatus in series and configured to receive a sheet, which is discharged from said first image forming apparatus, and form images on one side and both sides of the sheet; an information presentation device configured to inform a user of information; an input device configured to receive a command input by the user; and a control device configured to control said first image forming apparatus and said second image forming apparatus, wherein, when starting a job of printing both sides of sheets while one of said first image forming apparatus and said second image forming apparatus is performing an adjustment operation for adjusting the performance of image formation, said control device provides information through said information presentation device which prompts the user to select whether to start the job by forming images on both sides of each sheet as a first double-side printing process with the other image forming apparatus which is not performing the adjustment operation, or start the job, after said one image forming apparatus has finished the adjustment operation, by forming an image on one side of each sheet with said first image forming apparatus and then forming an image on the other side of said each sheet with said second image forming apparatus as a second double-side printing process, wherein said control device starts the job by forming images on both sides of each sheet as the first double-side printing process with the other image forming apparatus which is not performing the adjustment operation, if the user selects forming images on both sides of each sheet with the other image forming apparatus which is not performing the adjustment operation; and starts the job by forming an image on one side of each sheet with said first image forming apparatus and then forming an image on the other side of said each sheet with said second image forming apparatus as the second double-side printing process after said one image forming apparatus has finished the adjustment operation, if the user selects forming an image on one side of each sheet with said first image forming apparatus and then forming an image on the other side of said each sheet with said second image forming apparatus after said one image forming apparatus has finished the adjustment operation.