An image forming apparatus includes: an image forming unit configured to form a toner image on an image bearing member according to printing information; a transfer unit configured to transfer an unfixed toner image formed by the image forming unit onto a printing sheet; a fixing unit configured to heat the unfixed toner image carried on the printing sheet and fix the unfixed toner image on the printing sheet; a temperature measuring unit configured to measure the temperature of the fixing unit; and a quick-print processing unit configured to cause, when printing is started, even if the temperature of the fixing unit measured by the temperature measuring unit does not reach a ready temperature, the image forming unit to perform an image forming operation on the basis of a low process speed for enabling the fixing in the fixing unit, which is lower than a normal process speed corresponding to the ready temperature.