Patent ID: 7006239

Claim:
An image forming apparatus provided with a reader unit for reading image information from originals fed in succession by an original feeding unit and adapted to execute image formation in a plural-image retention forming mode of forming images based on original image information of a predetermined number, read by said reader unit, by an image forming unit on an image bearing member and transferring the original images formed on said image bearing member respectively onto recording media of the predetermined number fed in succession, said apparatus comprising: instruction means for manually inhibiting the execution of said plural-image retention forming mode, wherein said image forming unit is adapted to form a color image by separating the color original image read by said reader unit into plural colors and transferring the original images of the separated colors respectively onto recording media; said apparatus further comprises setting means for setting a plural-color image forming mode or a mono-color image forming mode; and said plural-image retention forming mode is enabled or disabled according to a size of the fed recording medium, set state of said setting means and presence or absence of inhibition by said instruction means.