Patent ID: 9340050
Filing Date: 2016-05-17
CPC Classification: B41J

Claim Text:
1. An ink jet recording apparatus, which is configured to form an image corresponding to image data by applying ink droplets on a recording medium, the ink jet recording apparatus comprising: a print head configured to apply ink droplets on the recording medium; a recording condition changing unit configured to change a recording condition to be used upon formation of the image using the ink jet recording apparatus; an evaluation image input unit configured to input evaluation image data representing an evaluation image as the image data in order to form the evaluation image on the recording medium, the evaluation image being an image comprising at least two successive adjacent dots; an evaluation image forming control unit configured to cause the print head to form the evaluation image on the print medium based on the evaluation image data input by the evaluation image input unit and according to the recording condition changed by the recording condition changing unit; a reading unit configured to read the evaluation image formed on the recording medium; and a recording condition determining unit configured to determine a recording condition upon formation of the image on the recording medium according to a degree of a change in lightness with a period equivalent to a recording dot resolution of the adjacent dots in the read image of the successive adjacent dots based on a reading result by the reading unit.