Image forming apparatus having original conveying apparatus

An image forming apparatus comprising:

• an original conveying apparatus including an original stacking means for stacking a plurality of originals, an original supply means for separating and supplying the originals one by one from said original stacking means, a pair of registration rollers for adjusting a leading end position of the original fed by said supply means, a convey means for conveying the original conveyed by said pair of registration rollers to a predetermined location on an original support glass plate, and a discharge tray on which the originals scanned on said original support glass plate are stacked;
• scanning means for scanning an original image of the original on said original support glass plate;
• an image forming portion for forming an image on the basis of the original image read by said scanning means;
• a recording sheet supply portion for supplying a recording sheet to said image forming portion through a convey path;
• and
• control means for controlling in such a manner that, when the image of each original is formed on N recording sheets, a subsequent original on said original stacking means starts to be supplied during a scanning of the image for a last N-th recording sheet, wherein the N is more than 1.