Patent ID: 6977747

Claim:
An image forming system having an image information generation apparatus for generating image information, and an image forming apparatus capable of forming images on both sides of a printing medium on the basis of the image information generated by the image information generation apparatus, the image information generation apparatus comprising: image information generation unit adapted to generate image information; storage unit adapted to store the generated image information to allow identifying whether the image information is first image information to be printed on a first surface of the printing medium or second image information to be printed on a second surface of the printing medium; first reception unit adapted to receive a first signal to select the first image information or the second image information in order to transmit to the image forming apparatus; selection unit adapted to select one of the first image information and the second image information on the basis of the first signal received by said first reception unit; and first transmission unit adapted to transmit the image information selected by said selection unit to the image forming apparatus, and the image forming apparatus comprising; second transmission unit adapted to transmit the first signal; second reception unit adapted to receive the image information transmitted from the image information generation apparatus; and image forming unit adapted to form an image on the first surface or the second surface of the printing medium on the basis of the image information received by the second reception unit.