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Ink jet recording method and apparatus, ink and ink cartridge

  • US 6,084,610 A
  • Filed: 01/11/1996
  • Issued: 07/04/2000
  • Est. Priority Date: 01/13/1995
  • Status: Expired due to Term
First Claim
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1. An ink jet recording method which records an image on a recording medium by adhering inks of a plurality of hues on the recording medium, the ink jet recording method comprising the steps of:

  • (a) carrying out a recording using two kinds of inks having different diffusibilities with respect to the recording medium for at least a predetermined one of the hues, a first ink out of the two kinds of inks having a diffusibility which is lower than a diffusibility of a ink having a hue other than the predetermined hue; and

    (b) at a boundary portion on the recording medium where a first recording region which includes the predetermined hue and a second recording region which includes a hue different from the predetermined hue are adjacent to each other, recording at least a portion of the boundary portion with a predetermined recording width up to the second recording region using a second ink out of the two kinds of inks having a diffusibility higher than that of the first ink and recording a remaining portion of the boundary portion using the first ink,the second ink and inks of hues other than the predetermined hue having approximately the same diffusibility as the second ink have diffusibilities which are higher for hues with lower contrasts.

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