An image forming apparatus comprising: receiving means for receiving image data; acquisition means for acquiring print settings to be referred to for printing the image data on a sheet; printing means for printing the image data, wherein the printing means includes exposure means for exposing a photosensitive drum to form an electrostatic latent image based on the image data; development means for developing, using a developing material on a developing roller, the formed electrostatic latent image; and fixing means for fixing the developed image on the sheet; characterized in that the image forming apparatus further comprises: first determination means for determining whether the print settings include an extended gamut print setting for causing an increase of a circumferential speed of the developing roller relative to a circumferential speed of the photosensitive drum; second determination means for determining whether the print settings include a further print setting being at least one of a sheet thickness equal to or less than a predetermined threshold, a proportion of sheet length to sheet width equal to or greater than a predetermined threshold, a sheet width equal to or greater than a predetermined threshold, a width of a drawing area equal to or greater than a predetermined threshold, and a duplex print setting; third determination means for determining, based on determination that the extended gamut print setting for causing the increase of circumferential speed and the further print setting are included in the print settings, not to print the image data. receiving means for receiving image data; acquisition means for acquiring print settings to be referred to for printing the image data on a sheet; printing means for printing the image data, wherein the printing means includes exposure means for exposing a photosensitive drum to form an electrostatic latent image based on the image data; development means for developing, using a developing material on a developing roller, the formed electrostatic latent image; and fixing means for fixing the developed image on the sheet; exposure means for exposing a photosensitive drum to form an electrostatic latent image based on the image data; development means for developing, using a developing material on a developing roller, the formed electrostatic latent image; and fixing means for fixing the developed image on the sheet; characterized in that the image forming apparatus further comprises: first determination means for determining whether the print settings include an extended gamut print setting for causing an increase of a circumferential speed of the developing roller relative to a circumferential speed of the photosensitive drum; second determination means for determining whether the print settings include a further print setting being at least one of a sheet thickness equal to or less than a predetermined threshold, a proportion of sheet length to sheet width equal to or greater than a predetermined threshold, a sheet width equal to or greater than a predetermined threshold, a width of a drawing area equal to or greater than a predetermined threshold, and a duplex print setting; first determination means for determining whether the print settings include an extended gamut print setting for causing an increase of a circumferential speed of the developing roller relative to a circumferential speed of the photosensitive drum; second determination means for determining whether the print settings include a further print setting being at least one of a sheet thickness equal to or less than a predetermined threshold, a proportion of sheet length to sheet width equal to or greater than a predetermined threshold, a sheet width equal to or greater than a predetermined threshold, a width of a drawing area equal to or greater than a predetermined threshold, and a duplex print setting; third determination means for determining, based on determination that the extended gamut print setting for causing the increase of circumferential speed and the further print setting are included in the print settings, not to print the image data.