Method for ink-jet recording and an ink-jet recording apparatus
AssigneeCanon Kabushiki Kaisha
InventorsHiroyuki Ishinaga, Masami Ikeda, Tsutomu Abe, Toshio Kashino
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Abstract
A method for making a record with multiple levels of a gradation on a recording medium, has the following steps: preparing a device for ejecting inks of different densities in a plurality of ejection amounts, respectively; linearizing a relationship between gradation and image density so that levels of the gradation of each of the inks of different densities can be interpolated with others; and making a record on a recording medium in response to multiple-level recording data in accordance with the relationship between gray scale and image density.
Claims5
A method for making a record with multiple levels of gradation on a recording medium, comprising the steps of:
- providing a means for ejecting inks of different densities in a plurality of ejection amounts, respectively;
- linearizing a relationship between gradation and image density so that levels of the gradation of each of the inks of different densities are interpolated by the different densities in a plurality of ejection amounts;
- and
- making the record on the recording medium in response to multiple-level recording data in accordance with the relationship between gradation and image density.
An ink-jet recording apparatus for making a record with multiple levels of gradation on a recording medium, comprising:
- means for ejecting inks of different densities in a plurality of ejection amounts, respectively;
- means for linearizing a relationship between gradation and image density so that levels of the gradation of each of the inks of different densities are interpolated by the different densities in a plurality of ejection amounts;
- and
- means for making the record on the recording medium by ejecting inks from said ejection means in response to multiple-level recording data in accordance with the relationship between gradation and image density.
Dependencies are inferred from the claim text.