Claims
- 1. An ink jet recording apparatus for jetting ink droplet to a recording medium and forming a dot image on said recording medium, said jet recording apparatus comprising:
- ink jet orifices from which ink droplets are jetted;
- ink spaces which are filled with ink and connected to said ink jetting orifices;
- energy applying portions for applying energy to the ink in said ink spaces on demand so that ink droplets are jetted from said ink jetting orifices by the applied energy; and
- control means for controlling said energy applying portions in accordance with image information representing an image to be formed on said recording medium so that the image includes pixels each of which is formed of one or a plurality of ink droplets, a maximum number of ink droplets for each pixel being controlled so as to be less than ten, wherein an amount of ink for each pixel formed of one or a plurality of ink droplets is equal to or less than 1.405.times.10.sup.-7 grams.
- 2. An ink jet recording apparatus for jetting ink droplets to a recording medium and forming a dot image on said recording medium, said ink jet recording apparatus comprising:
- ink jet orifices from which ink droplets are jetted;
- ink paths connected to said ink jetting orifices, said ink paths being filled with ink;
- energy applying portions for applying energy to the ink in said ink paths on demand so that ink droplets are jetted from said ink jetting orifices by the applied energy; and
- control means for controlling said energy applying portions in accordance with image information representing an image to be formed on said recording medium so that the image includes pixels each of which is formed of one or a plurality of ink droplets, a maximum number of ink droplets for each pixel being controlled based on a kind of recording medium, wherein the maximum number of ink droplets for each pixel of the image depends on a kind of the recording medium on which the image is to be formed, and wherein a degree of expansion of an ink dot on the recording medium depends on the kind of the recording medium, a maximum number of ink droplets being controlled so as to be less than ten, wherein an amount of ink for each pixel formed of one or a plurality of ink droplets is equal to or less than 1.405.times.10.sup.-7 grams.
- 3. An ink jet recording apparatus for jetting ink droplets to a recording medium and forming a dot image on said recording medium, said ink jet recording apparatus comprising:
- ink jetting orifices from which ink droplets are jetted;
- ink paths connected to said ink jetting orifices, said ink paths being filled with ink;
- energy applying portions for applying energy to the ink in said ink paths on demand so that ink droplets are jetted from said ink jetting orifices by the applied energy; and
- control means for controlling said energy applying portions in accordance with image information representing an image to be formed on said recording medium so that the image includes pixels each of which is formed of one or a plurality of ink droplets, a maximum number of ink droplets for each pixel being controlled based on a kind of recording medium, wherein a center of each pixel which is formed of one or a plurality of ink droplets is approximately on a predetermined position on said recording medium, a maximum number of ink droplets being controlled so as to be less than ten, wherein an amount of ink for each pixel formed of one or a plurality of ink droplets is equal to or less than 1.405.times.10.sup.-7 grams.
- 4. An ink jet recording apparatus for jetting ink droplets to a recording medium and forming a dot image on said recording medium, said ink jet recording apparatus comprising:
- ink jetting orifices from which ink droplets are jetted;
- ink paths connected to said ink jetting orifices, said ink paths being filled with ink;
- energy applying portions for applying energy to the ink in said ink paths on demand so that ink droplets are jetted from said ink jetting orifices by the applied energy; and
- control means for controlling said energy applying portions in accordance with image information representing an image to be formed on said recording medium so that the image includes pixels each of which is formed of one or a plurality of ink droplets, a maximum number of ink droplets for each pixel being controlled based on a kind of recording medium, wherein pixels each of which are formed of one or a plurality of ink droplets are arranged at approximately constant intervals in the image, a maximum number of ink droplets being controlled so as to be less than ten, wherein an amount of ink for each pixel formed of one or a plurality of ink droplets is equal to or less than 1.405.times.10.sup.-7 grams.
- 5. An ink jet recording apparatus for jetting ink droplets to a recording medium and forming a dot image on said recording medium, said ink jet recording apparatus comprising:
- ink jetting orifices from which ink droplets are jetted;
- ink paths connected to said ink jetting orifices, said ink paths being filled with ink;
- energy applying portions for applying energy to the ink in said ink paths on demand so that ink droplets are jetted from said ink jetting orifices by the applied energy; and
- control means for controlling said energy applying portions in accordance with image information representing an image to be formed on said recording medium so that the image includes pixels each of which is formed of one or a plurality of ink droplets, a maximum number of ink droplets for each pixel being controlled based on a kind of recording medium, wherein a number of ink droplets corresponding to image data for a pixel is controlled so that a relationship between an actual density of the pixel in the image on said recording medium and the image data for the pixel is linear, a maximum number of ink droplets being controlled so as to be less than ten, wherein an amount of ink for each pixel formed of one or a plurality of ink droplets is equal to or less than 1.405.times.10.sup.-7 grams.
Priority Claims (3)
Number |
Date |
Country |
Kind |
4-259521 |
Sep 1992 |
JPX |
|
5-28019 |
Feb 1993 |
JPX |
|
5-106706 |
May 1993 |
JPX |
|
Parent Case Info
This is a continuation of application Ser. No. 08/480,148 filed Jun. 7, 1995, U.S. Pat. No. 5,657,060 which is a continuation of Ser. No. 08/127,951 filed Sep. 27, 1993 U.S. Pat. No. 5,610,637.
US Referenced Citations (11)
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Continuations (2)
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Number |
Date |
Country |
Parent |
480148 |
Jun 1995 |
|
Parent |
127951 |
Sep 1993 |
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