Ink jet recording method, recording apparatus and data processing method

An ink jet recording method of effecting recording on a recording material by ejecting a plurality of inks with relative scanning movement between a recording head and the recording material, said ink jet recording method comprising:

• a step of obtaining relative information indicative of a relative relation between amounts of the inks to be ejected for each of plural unit areas provided by dividing an area in the neighborhood of a boundary between adjacent bands of scanning recording of the recording head on the recording material;
• a step of determining, for each of the inks, a reduction rate at which the amount of the ink to be ejected to the neighborhood of the boundary in a unit area on the basis of the relative information for each of the plural unit areas obtained in said obtaining step and on the basis of quantity information indicative of an amount of each ink to be ejected in the unit area;
• and
• a step of reducing the amount of each ink to be ejected to the neighborhood of the boundary on the basis of the reduction rate for each ink determined in said determining step.

A data processing method for effecting recording on a recording material by ejecting a plurality of inks with relative scanning movement between a recording head and the recording material, said data processing method comprising:

• a step of obtaining relative information indicative of a relative relation between amounts of the inks to be ejected for each of plural unit areas provided by dividing an area in the neighborhood of a boundary between adjacent bands of scanning recording of the recording head on the recording material;
• a step of determining, for each of the inks, a reduction rate at which the amount of the ink to be ejected to the neighborhood of the boundary in a unit area on the basis of the relative information for each of the unit areas obtained in said obtaining step and on the basis of quantity information indicative of an amount of each ink to be ejected in the unit area;
• and
• a step of reducing the amount of each ink to be ejected to the neighborhood of the boundary on the basis of the reduction rate for each ink determined in said determining step.

An ink jet recording apparatus for effecting recording on a recording material by ejecting a plurality of inks with relative scanning movement between a recording head and the recording material, said ink jet recording apparatus comprising:

• obtaining means for obtaining relative information indicative of a relative relation between the number of data corresponding to the inks to be ejected for each of plural unit areas provided by dividing an area in the neighborhood of a boundary between adjacent bands of scanning recording of the recording head on the recording material;
• determining means for determining, for each of the inks, a thinning rate for thinning data corresponding to the ink to be ejected to a thinning area in a unit area on the basis of the relative information for each of the plural unit areas obtained by said obtaining means and on the basis of the number of the data corresponding to each ink to be ejected in the unit area;
• and
• thinning means for thinning the data corresponding to each ink to be ejected to the neighborhood of the boundary on the basis of the thinning rate for each ink determined by said determining means.