Patent ID: 9555620
Date: 2017-01-31
CPC Classifications: B41J

Claim:
1. A printing apparatus for performing printing on a print medium by scanning with a print head in which a first scanning speed of the print head and a second scanning speed that is higher than the first scanning speed are capable of being set, the apparatus comprising: a pattern forming unit configured to form a plurality of adjustment patterns for each of the first scanning speed and the second scanning speed, the plurality of adjustment patterns each including a first pattern and a second pattern and having a different shift amount corresponding to a difference in a relative printing position between the first pattern and the second pattern; and an adjustment value obtaining unit configured to obtain an adjustment value based on the plurality of adjustment patterns formed for adjusting a printing position, for each of the first scanning speed and the second scanning speed, wherein the adjustment value obtaining unit obtains an adjustment value for the first scanning speed before the pattern forming unit forms adjustment patterns for the second scanning speed; the pattern forming unit forms adjustment patterns by scanning with the print head at the second scanning speed with a shift amount based on the adjustment value obtained for the first scanning speed; and the adjustment value obtaining unit obtains an adjustment value for the second scanning speed based on the adjustment patterns formed by scanning with the print head at the second scanning speed.