Correction value setting method, recording method, and recording device using patches recorded in different concentration ranges alternately arranged in a direction intersecting a nozzle array

Abstract

A correction value setting method includes a recording step of recording on a recording medium a test pattern including a plurality of patches by a plurality of nozzles arrayed in a first direction, a reading step of reading a concentration value of the test pattern recorded on the recording medium, a calculating step of calculating a correction value of an ink amount for each of the plurality of nozzles, based on the concentration value, and a setting step of setting the correction value as a correction value that is used for real recording. The plurality of patches include a plurality of first patches in a first concentration range and a plurality of second patches in a second concentration range including concentration higher than that in the first concentration range, and the plurality of first patches and the plurality of second patches are arranged alternately in a second direction intersecting the first direction.

Dependencies are inferred from the claim text.