a print head including (1) a printing element array provided with printing elements each configured to generate thermal energy required to eject an ink, (2) a supply flow channel provided along the printing element array and configured to supply the ink to the respective printing elements, (3) an opening provided to the supply flow channel and configured to cause the ink to flow in, and (4) heating units provided along the supply flow channel and configured to heat the ink inside the supply flow channel; and

a heating control unit configured to carry out heating control of the heating units based on a heating pattern determined based on heating intensity distribution, the heating intensity distribution representing heating intensities corresponding to the respective heating units and representing the heating intensities corresponding to positions in a direction of the printing element array,

wherein the ink jet printing apparatus is operated in any of print modes having different printing conditions,

wherein heating patterns are associated with the print modes in advance, respectively, and

wherein the heating control unit carries out the heating control by using the heating pattern based on print mode information indicating the print mode that is set up.