An image forming device comprising: first selecting means adapted to select a gloss effect creating a glossy feeling to a printout document or a matte effect creating a matte feeling to the printout document in a case of printing an input image on a print paper to obtain the printout document; second selecting means adapted to select quality priority for prioritizing a quality of the printout document or speed priority for prioritizing a print speed thereof; third selecting means adapted to select either plain or coated paper to be printed based on print mode; first printout means adapted to, in a case where the matte effect is selected by the first selecting means, print the image on the coated paper selected by the third selecting means for obtaining the printout document using toner of four colors of cyan, magenta, yellow and black and transparent toner to complete printing by one-time fixing, the transparent toner being printed on pixels in which logical values of transparent form image data, being binary data, are respectively "1"; second printout means adapted to, in a case where the gloss effect is selected by the first selecting means and the quality priority is selected by the second selecting means, print and fix the image on the coated paper selected by the third selecting means using the toner of the four colors of the cyan, magenta, yellow and black for obtaining the printout document, and thereafter, further print and fix reverse transparent form image data obtained by reversing transparent form image data for printing using transparent toner among image data constituting the input image using the transparent toner; and third printout means adapted to, in a case where the gloss effect is selected by the first selecting means and the print speed is prioritized by the second selecting means, print the image on the plain paper selected by the third selecting means using the toner of the four colors of the cyan, magenta, yellow and black and the transparent toner for obtaining the printout document to complete printing with one-time fixing, the transparent toner being printed on pixels in which logical values of transparent form image data, being binary data, are respectively "1". first selecting means adapted to select a gloss effect creating a glossy feeling to a printout document or a matte effect creating a matte feeling to the printout document in a case of printing an input image on a print paper to obtain the printout document; second selecting means adapted to select quality priority for prioritizing a quality of the printout document or speed priority for prioritizing a print speed thereof; third selecting means adapted to select either plain or coated paper to be printed based on print mode; first printout means adapted to, in a case where the matte effect is selected by the first selecting means, print the image on the coated paper selected by the third selecting means for obtaining the printout document using toner of four colors of cyan, magenta, yellow and black and transparent toner to complete printing by one-time fixing, the transparent toner being printed on pixels in which logical values of transparent form image data, being binary data, are respectively "1"; second printout means adapted to, in a case where the gloss effect is selected by the first selecting means and the quality priority is selected by the second selecting means, print and fix the image on the coated paper selected by the third selecting means using the toner of the four colors of the cyan, magenta, yellow and black for obtaining the printout document, and thereafter, further print and fix reverse transparent form image data obtained by reversing transparent form image data for printing using transparent toner among image data constituting the input image using the transparent toner; and