Patent ID: 8136914
Filing Date: 2012-03-20
Classification: B41J

Abstract:
1. An image recording method of recording an image on a recording medium while a recording head comprising a plurality of recording elements and the recording medium are moved relative to each other, the image recording method comprising: a first recording characteristic information acquiring step of causing each of the recording elements of the recording head to eject the ink droplet, forming a first test pattern on the recording medium, reading the formed first test pattern, and acquiring first recording characteristic information of the recording element based on a result of the reading; a first density unevenness correction information calculating step of obtaining first density unevenness correction information based on the first recording characteristic information; a second recording characteristic information acquiring step of causing the each of the recording elements of the recording head to eject the ink droplet, forming a second test pattern different from the first test pattern on the recording medium, reading the second test pattern, and acquiring second recording characteristic information of the recording element based on a result of the reading; a second density unevenness correction information calculating step of obtaining second density unevenness correction information based on the second recording characteristic information; a third density unevenness correction information calculating step of obtaining third density unevenness correction information based on the first density unevenness correction information and the second density unevenness correction information; a density correction processing step of correcting image data based on the third density unevenness correction information to calculate density unevenness-corrected image data; and an ejection control signal calculating step of calculating an ejection pattern of the recording element based on the unevenness-corrected image data.