Image forming apparatus with intermediate tray

Claim 1

An image forming apparatus comprising: paper feeding means for feeding a paper, conveying means for conveying the paper, image forming means for forming an image, said image forming means including an intermediate tray, post-processing device for post-processing the paper with the image formed thereon, jam detecting means for detecting a jamming of the paper, wherein the jam detecting means detects jams which occur downstream from a switching point, wherein the switching point is located at a point wherein the paper either travels to said intermediate tray or to said post-processing device, control means for controlling the image forming apparatus such that if a paper being conveyed having an image of a first document is jammed during conveyance to the post-processing device while a second paper having an image of a second document on one side thereof is fed from the paper feeding means and is sent to the intermediate tray by the conveying means, when the conveyance of the jammed paper by the conveying means is stopped, and the second paper being conveyed toward the intermediate tray is allowed to be conveyed to the intermediate tray and stocked, while feeding of additional paper by the paper feeding means is stopped, and when the jam is cleared, the second paper stocked in the intermediate tray is discharged outside of the image forming apparatus without forming an image on a reverse side of the second paper.