Patent ID: 7497427

Claim:
An image forming system comprising: an image forming apparatus for forming images on recording sheets, the image forming apparatus comprising an operation unit for inputting operation instructions, including a cancellation of job instruction; and a post-processing apparatus for conducting post-processing on the recording sheets on which the image forming apparatus has formed the images; wherein the post-processing apparatus comprises: a stacker for loading thereon the recording sheets on which the images have been formed; a stapler for conducting a stapling process on the recording sheets loaded on the stacker; an ejector for ejecting the recording sheets; and a controller which, when the cancellation of job instruction for a job which includes the stapling process is input via the operation unit and when a number of the recording sheets loaded on the stacker is greater than a preset number, executes a stapling ejection mode in which the recording sheets are subjected to the stapling process by the stapler and then ejected by the ejector.