Ink jet printing apparatus, image processing method and ink jet printing method

摘要

To enable an ink jet printing apparatus to produce high quality images at all times from the initial stage of use until the end of its service life, the present invention provides an ink jet printing method for printing an image on a print medium by using a print head, wherein the print head can eject ink supplied from an ink tank, the ink jet printing method comprising: an ink consumption detection step for detecting an amount of ink consumed in the ink tank; an ejection number detection step for detecting the number of ink ejections from the print head; an ink droplet volume calculation step for calculating an ink droplet volume based on the number of ink ejections from the print head and the ink consumption; and a control step for changing processing associated with a printing operation according to the ink droplet volume calculated by the calculation step.