An image forming apparatus includes an image forming section for forming an image on a recording material with transparent toner; a heater for heating a first image and a second image which are formed on the recording material by the image forming section as transparent images different in toner coverage per unit area; a glossiness detector for detecting glossiness of the first and second images after the first and second images are heated; and a correction section for correcting an image forming condition of the image forming section on the basis of a glossiness toner coverage characteristic obtained by a detection result of the detector.