A printing apparatus includes a print chip that has a first nozzle group with a common input voltage; a print controller that controls to print a test image containing a first test region and a second test region which are printed upon input of a first voltage and a second voltage, respectively, the second voltage being different from the first voltage; an image capturing unit that image-captures a plurality of regions formed by dividing the test image; a density detector that detects densities of a first detection target region and a second detection target region in captured images; and a voltage calibrator that calibrates the input voltage based on the densities of the first detection target region and the second detection target region and values of the first voltage and the second voltage, wherein positions of the first detection target region and the second detection target region are identical.