Patent ID: 9340034
Filing Date: 2016-05-17
CPC Classification: B41J,H04N

Claim Text:
1. An image processing apparatus comprising: a conveyance unit configured to convey a print medium; a printing unit configured to print a first test pattern using a print head having a plurality of print elements arranged in a first direction on a part of a print medium conveyed in a second direction intersecting the first direction by the conveyance unit, and print a second test pattern using the print head on another part of the print medium, on which the first pattern has been printed, conveyed in the second direction by the conveyance unit, wherein in the first direction a width of the widest print medium of print mediums that the conveyance unit conveys is smaller than a width with which the plurality of print elements is arranged in the print head, and wherein the first test pattern is printed with a first group of print elements, the number of which is smaller than the number of the print elements of the print head and which are continuously aligned from one edge of the print head, the second test pattern is printed with a second group of print elements, the number of which is smaller than the number of the print elements of the print head, and at least some of the print elements in the second group are not included in the first group; a moving unit configured to move the print head in the first direction such that a position of the print head with respect to the print medium when the first test pattern is printed is different from a position of the print head with respect to the print medium when the second test pattern is printed, wherein the moving unit moves the print head in the first direction and the printing unit prints the second test pattern such that a printed region of the first pattern and a printed region of the second pattern overlap in the first direction; a measurement unit having a measuring area in the first direction and configured to measure the first test pattern and the second test pattern on the print medium by relative movement between the print medium and the measurement unit, in the second direction; and a generation unit configured to generate print data for printing an image with the first and second groups based on measurement results of the first test pattern and the second test pattern measured by the measurement unit.