Patent ID: 8634753

Claim:
An image forming apparatus comprising: an image forming device configured to form a transparent image on a sheet using a transparent toner based on an inputted multiple-value image data; a fixing device configured to heat-fix the image formed on the sheet; a glossing device configured to increase a glossiness of the image, which is fixed by said fixing device, on the sheet; a mode selector configured to select one of a first mode in which transparent image formation is performed using said fixing device and without using said glossing device, and a second mode in which image formation is performed using said fixing device and said glossing device; and a controlling device configured to control a toner amount per unit area of the transparent image to be formed on the sheet by said image forming device based on a mode selected by said mode selector, wherein when the first mode is selected, said controlling device makes said image forming device form the transparent image based on the inputted multiple-value image data, and wherein when the second mode is selected, said controlling device binarizes the inputted multiple-value image data to two-value image data and makes said image forming device form the transparent image based on the two-value image data.