Printing apparatus and control method of printing apparatus

A printing apparatus comprising:

• a fixing unit configured to fix an image onto a printing medium by heating the printing medium on which the image is printed;
• a measuring unit configured to measure a length of the printing medium after heating of the printing medium in the fixing unit;
• a deriving unit configured to derive a characteristic of a deformation amount of the printing medium with respect to temperature based on the measured length;
• a receiving unit configured to receive a specification of a deformation amount threshold;
• and
• a determining unit configured to determine a fixation temperature in fixation of the image onto the printing medium by the fixing unit, by calculating a maximum temperature at which the characteristic derived by the deriving unit does not exceed the deformation amount threshold,
• wherein the determining unit is configured to set melting temperature as the fixation temperature, when the calculated maximum temperature is lower than a melting temperature of an ink used in printing.