Printing method and printing apparatus

US 20040130754A1
Filed: 12/22/2003
Published: 07/08/2004
Est. Priority Date: 12/25/2002
Status: Abandoned Application

First Claim

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1. A printing method, comprising:

an expanding step of expanding a multi-value image in a storage area; and

an image forming step of binarizing the multi-value image expanded in said storage area based on a binarization dither matrix pattern and forming an image based on a result of the binarization; and

wherein the binarization dither matrix pattern is configured as a rectangular pattern wherein a plurality of pixels to be turned on successively are arranged in a matrix, and the rectangular pattern includes a plurality of basic patterns formed such that, in a partly lacking matrix having four rows and three columns, the pixels of the first to third columns which form the first row of the partly lacking matrix are turned on seventh, fifth, and ninth, respectively;

the pixels of the first to third columns which form the second row of the partly lacking matrix are turned on fourth, first, and third, respectively;

the pixels of the first to third columns which form the thi rd, row of the partly lacking matrix are turned on sixth, second and eighth, respectively; and

the pixel of the first column which forms the fourth row of the partly lacking matrix is turned on tenth, and the turn-on order of the pixels is set so that dots having shapes same as each other individually grow in order from a plurality of points.

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Abstract

The invention provides a printing method and apparatus which can reduce moirés and artifacts. The printing method includes an expanding step of expanding a multi-value image in a storage area, and an image forming step of binarizing the multi-value image expanded in the storage area based on a binarization dither matrix pattern wherein the turn-on order of pixels is set so that dots having shapes same as each other individually grow in order from a plurality of points and forming an image based on a result of the binarization.

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34 Claims

1. A printing method, comprising:
- an expanding step of expanding a multi-value image in a storage area; and
  
  an image forming step of binarizing the multi-value image expanded in said storage area based on a binarization dither matrix pattern and forming an image based on a result of the binarization; and
  
  wherein the binarization dither matrix pattern is configured as a rectangular pattern wherein a plurality of pixels to be turned on successively are arranged in a matrix, and the rectangular pattern includes a plurality of basic patterns formed such that, in a partly lacking matrix having four rows and three columns, the pixels of the first to third columns which form the first row of the partly lacking matrix are turned on seventh, fifth, and ninth, respectively;
  
  the pixels of the first to third columns which form the second row of the partly lacking matrix are turned on fourth, first, and third, respectively;
  
  the pixels of the first to third columns which form the thi rd, row of the partly lacking matrix are turned on sixth, second and eighth, respectively; and
  
  the pixel of the first column which forms the fourth row of the partly lacking matrix is turned on tenth, and the turn-on order of the pixels is set so that dots having shapes same as each other individually grow in order from a plurality of points.
- View Dependent Claims (21, 22)
- - 21. The printing method as claimed in claim 1, wherein, in the binarization dither matrix pattern, the rectangular pattern to which the turn-on order is set is turned 90 or 270 degrees.
  - 22. The printing method as claimed in claim 1, wherein, in the binarization dither matrix pattern, the turn-on order number set to an arbitrary pixel in the rectangular pattern and the turn-on order number set to a pixel at a point symmetric to the pixel with respect to the center of the rectangular pattern are exchanged for each other.

2. A printing method, comprising:
- an expanding step of expanding a multi-value image in a storage area; and
  
  an image forming step of binarizing the multi-value image expanded in said storage area based on a binarization dither matrix pattern and forming an image based on a result of the binarization; and
  
  wherein the binarization dither matrix pattern is configured as a rectangular pattern wherein a plurality of pixels to be turned on successively are arranged in a matrix, and the rectangular pattern includes a plurality of sub patterns formed by arranging m basic patterns formed such that, in a partly lacking matrix having four rows and three columns, the pixels of the first to third columns which form the first row of the partly lacking matrix are turned on n+6×
  
  mth, n+4×
  
  mth, and n+8×
  
  mth, respectively;
  
  the pixels of the first to third columns which form the second row of the partly lacking matrix turned on n+3×
  
  mth, nth, and n+2×
  
  mth, respectively;
  
  the pixels of the first to thi rd, columns which form the third row of the partly lacking matrix are turned on n+5×
  
  mth, n+mth, and n+7×
  
  mth, respectively; and
  
  the pixel of the first column which forms the fourth row of the partly lacking matrix is turned on n+9×
  
  mth, m and n being arbitrary natural numbers, and the turn-on order of the pixels is set so that dots having shapes same as each other individually grow in order based on said plurality of sub patterns.

3. A printing method, comprising:
- an expanding step of expanding a multi-value image in a storage area; and
  
  an image forming step of binarizing the multi-value image expanded in said storage area based on a binarization dither matrix pattern and forming an image based on a result of the binarization; and
  
  wherein the binarization dither matrix pattern is configured as a rectangular pattern wherein a plurality of pixels to be turned on successively are arranged in a matrix, and the rectangular pattern includes a plurality of basic patterns formed such that, in a partly lacking matrix having five rows and four columns, the pixels of the first to fourth columns which form the first row of the partly lacking matrix are turned on 14th, 6th, 12th, and 16th, respectively;
  
  the pixels of the first to fourth columns which form the second row of the partly lacking matrix are turned on 10th, 2nd, 4th, and 8th, respectively;
  
  the pixels of the first to fourth columns which form the thi rd, row of the partly lacking matrix are turned on 5th, 1st, 3rd, and 11th, respectively;
  
  the pixels of the first to fourth columns which form the fourth row of the partly lacking matrix are turned on 13th, 9th, 7th, and 15th, respectively; and
  
  the pixel of the first column which forms the fifth row of the partly lacking matrix is turned on 17th, and the turn-on order of the pixels is set so that dots having shapes same as each other individually grow in order from a plurality of points.

4. A printing method, comprising:
- an expanding step of expanding a multi-value image in a storage area; and
  
  an image forming step of binarizing the multi-value image expanded in said storage area based on a binarization dither matrix pattern and forming an image based on a result of the binarization; and
  
  wherein the binarization dither matrix pattern is configured as a rectangular pattern wherein a plurality of pixels to be turned on successively are arranged in a matrix, and the rectangular pattern includes a plurality of sub patterns formed by arranging m basic patterns formed such that, in a partly lacking matrix having five rows and four columns, the pixels of the first to fourth column which form the first row of the partly lacking matrix are turned on n+13×
  
  mth, n+5×
  
  mth, n+11×
  
  mth, and n+15×
  
  mth, respectively;
  
  the pixels of the first to fourth columns which form the second row of the partly lacking matrix are turned on n+9×
  
  mth, n+mth, n+3×
  
  mth, and n+7×
  
  mth, respectively;
  
  the pixels of the first to fourth columns which form the third row of the partly lacking matrix are turned on n+4×
  
  mth, nth, n+2×
  
  mth, and n+10×
  
  mth, respectively;
  
  the pixels of the first to fourth columns which form the fourth row of the partly lacking matrix are turned on n+12×
  
  mth, n+8×
  
  mth, n+6×
  
  mth, and n+14×
  
  mth, respectively; and
  
  the pixel of the first column which forms the fifth row of the partly lacking matrix is turned on n+16×
  
  mth, m and n being arbitrary natural numbers, and the turn-on order of the pixels is set so that dots having shapes same as each other individually grow in order based on said plurality of sub patterns.

5. A printing method, comprising:
- an expanding step of expanding a multi-value image in a storage area; and
  
  an image forming step of binarizing the multi-value image expanded in said storage area based on a binarization dither matrix pattern and forming an image based on a result of the binarization; and
  
  wherein the binarization dither matrix pattern is configured as a rectangular pattern wherein a plurality of pixels to be turned on successively are arranged in a matrix, and the rectangular pattern includes a plurality of basic patterns formed such that, in a partly lacking matrix having six rows and five columns, the pixels of the first to fifth columns which form the first row of the partly lacking matrix are turned on 23rd, 15th, 13th, 21st, and 25th, respectively;
  
  the pixels of the first to fifth columns which form the second row of the partly lacking matrix are turned on 19th, 7th, 5th, 9th, and 17th, respectively;
  
  the pixels of the first to fifth columns which form the third row of the partly lacking matrix are turned on 12th, 4th, 1st, 3rd, and 11th, respectively;
  
  the pixels of the first to fifth columns which form the fourth row of the partly lacking matrix are turned on 14th, 6th, 2nd, 8th, and 20th, respectively;
  
  the pixels of the first to fifth columns which form the fifth row of the partly lacking matrix are turned on 22nd, 18th, 10th, 16th, and 24th, respectively; and
  
  the pixel of the first column which forms the sixth row of the partly lacking matrix is turned on 26th, and the turn-on order of the pixels is set so that dots having shapes same as each other individually grow in order from a plurality of points.

6. A printing method, comprising:
- an expanding step of expanding a multi-value image in a storage area; and
  
  an image forming step of binarizing the multi-value image expanded in said storage area based on a binarization dither matrix pattern and forming an image based on a result of the binarization; and
  
  wherein the binarization dither matrix pattern is configured as a rectangular pattern wherein a plurality of pixels to be turned on successively are arranged in a matrix, and the rectangular pattern includes a plurality of sub patterns formed by arranging m basic patterns formed such that, in a partly lacking matrix having six rows and five columns, the pixels of the first to fifth columns which form the first row of the partly lacking matrix are turned on n+22×
  
  mth, n+14×
  
  mth, n+12×
  
  mth, n+20×
  
  mth, and n+24×
  
  mth, respectively;
  
  the pixels of the first to fifth columns which form the second row of the partly lacking matrix are turned on n+18×
  
  mth, n+6×
  
  mth, n+4×
  
  mth, n+8×
  
  mth, and n+16×
  
  mth, respectively;
  
  the pixels of the first to fifth columns which form the third row of the partly lacking matrix are turned on n+11×
  
  mth, n+3×
  
  mth, nth, n+2×
  
  mth, and n+10×
  
  mth, respectively;
  
  the pixels of the first to fifth columns which form the fourth row of the partly lacking matrix are turned on n+13×
  
  mth, n+5×
  
  mth, n+mth, n+7×
  
  mth, and n+19×
  
  mth, respectively;
  
  the pixels of the first to fifth columns which form the fifth row of the partly lacking matrix are turned on n+21×
  
  mth, n+17×
  
  mth, n+9×
  
  mth, n+15×
  
  mth, and n+23×
  
  mth, respectively; and
  
  the pixel of the first column which forms the sixth row of the partly lacking matrix is turned on n+25×
  
  mth, m and n being arbitrary natural numbers, and the turn-on order of the pixels is set so that dots having shapes same as each other individually grow in order based on said plurality of sub patterns.

7. A printing method, comprising:
- an expanding step of expanding a multi-value image in a storage area; and
  
  an image forming step of binarizing the multi-value image expanded in said storage area based on a binarization dither matrix pattern and forming an image based on a result of the binarization; and
  
  wherein the binarization dither matrix pattern is configured as a rectangular pattern wherein a plurality of pixels to be turned on successively are arranged in a matrix, and the rectangular pattern includes a plurality of basic patterns formed such that, in a partly lacking matrix having seven rows and six columns, the pixels of the first to sixth columns which form the first row of the partly lacking matrix are turned on 34th, 26th, 14th, 24th, 32nd, and 36th, respectively;
  
  the pixels of the first to sixth columns which form the second row of the partly lacking matrix are turned on 30th, 16th, 8th, 12th, 20th, and 28th, respectively;
  
  the pixels of the first to sixth columns which form the third row of the partly lacking matrix are turned on 22nd, 6th, 2nd, 4th, 10th, and 18th, respectively;
  
  the pixels of the first to sixth columns which form the fourth row of the partly lacking matrix are turned on 15th, 5th, 1st, 3rd, 11th, and 23rd, respectively;
  
  the pixels of the first to sixth columns which form the fifth row of the partly lacking matrix are turned on 25th, 13th, 7th, 9th, 19th, and 31st, respectively;
  
  the pixels of the first to sixth columns which form the sixth row of the partly lacking matrix are turned on 33rd, 29th, 21st, 17th, 27th, and 35th, respectively; and
  
  the pixel of the first column which forms the seventh row is turned on 37th, and the turn-on order of the pixels is set so that dots having shapes same as each other individually grow in order from a plurality of points.

8. A printing method, comprising:
- an expanding step of expanding a multi-value image in a storage area; and
  
  an image forming step of binarizing the multi-value image expanded in said storage area based on a binarization dither matrix pattern and forming an image based on a result of the binarization; and
  
  wherein the binarization dither matrix pattern is configured as a rectangular pattern wherein a plurality of pixels to be turned on successively are arranged in a matrix, and the rectangular pattern includes a plurality of sub patterns formed by arranging m basic patterns formed such that, in a partly lacking matrix having seven rows and six columns, the pixels of the first to sixth columns which form the first row of the partly lacking matrix are turned on n+33×
  
  mth, n+25×
  
  mth, n+13×
  
  mth, n+23×
  
  mth, n+31×
  
  mth, and n+35×
  
  mth, respectively;
  
  the pixels of the first to sixth columns which form the second row of the partly lacking matrix are turned on n+29×
  
  mth, n+15×
  
  mth, n+7×
  
  mth, n+11×
  
  mth, n+19×
  
  mth, and n+27×
  
  mth, respectively;
  
  the pixels of the first to sixth columns which form the third row of the partly lacking matrix are turned on n+21×
  
  mth, n+5×
  
  mth, n+mth, n+3×
  
  mth, n+9×
  
  mth, and n+17×
  
  mth, respectively;
  
  the pixels of the first to sixth columns which form the fourth row of the partly lacking matrix are turned on n+14×
  
  mth, n+4×
  
  mth, nth, n+2×
  
  mth, n+10×
  
  mth, and n+22×
  
  mth, respectively;
  
  the pixels of the first to sixth columns which form the fifth row of the partly lacking matrix are turned on n+24×
  
  mth, n+12×
  
  mth, n+6×
  
  mth, n+8×
  
  mth, n+18×
  
  mth, and n+30×
  
  mth, respectively;
  
  the pixels of the first to sixth columns which form the sixth row of the partly lacking matrix are turned on n+32×
  
  mth, n+28×
  
  mth, n+20×
  
  mth, n+16×
  
  mth, n+26×
  
  mth, and n+34×
  
  mth, respectively; and
  
  the pixel of the first column which forms the seventh row of the partly lacking matrix is turned on n+36×
  
  mth, m and n being arbitrary natural numbers, and the turn-on order of the pixels is set so that dots having shapes same as each other individually grow in order based on said plurality of sub patterns.

9. A printing method, comprising:
- an expanding step of expanding a multi-value image in a storage area; and
  
  an image forming step of binarizing the multi-value image expanded in said storage area based on a binarization dither matrix pattern and forming an image based on a result of the binarization; and
  
  wherein the binarization dither matrix pattern is configured as a rectangular pattern wherein a plurality of pixels to be turned on successively are arranged in a matrix, and the rectangular pattern includes a plurality of basic patterns formed such that, in a partly lacking matrix having eight rows and seven columns, the pixels of the fourth to sixth columns which form the first row of the partly lacking matrix are turned on 29th, 35th, and 39th, respectively;
  
  the pixels of the first to sixth columns which form the second row of the partly lacking matrix are turned on 37th, 27th, 15th, 17th, 25th, and 31st, respectively;
  
  the pixels of the first to sixth columns which form the third row of the partly lacking matrix are turned on 33rd, 21st, 9th, 7th, 11th, and 19th, respectively;
  
  the pixels of the first to seventh columns which form the fourth row of the partly lacking matrix are turned on 28th, 10th, 3rd, 1st, 5th, 13th, and 23rd, respectively;
  
  the pixels of the first to seventh columns which form the fifth row of the partly lacking matrix are turned on 22nd, 12th, 4th, 2nd, 6th, 18th, and 34th, respectively;
  
  the pixels of the second to seventh columns which form the sixth row of the partly lacking matrix are turned on 26th, 16th, 8th, 14th, 30th, and 38th, respectively;
  
  the pixels of the second to fifth columns which form the seventh row of the partly lacking matrix are turned on 36th, 32nd, 24th, and 20th, respectively; and
  
  the pixel of the second column which forms the eighth row of the partly lacking matrix is turned on 40th, and the turn-on order of the pixels is set so that dots having shapes same as each other individually grow in order from a plurality of points.

10. A printing method, comprising:
- an expanding step of expanding a multi-value image in a storage area; and
  
  an image forming step of binarizing the multi-value image expanded in said storage area based on a binarization dither matrix pattern and forming an image based on a result of the binarization; and
  
  wherein the binarization dither matrix pattern is configured as a rectangular pattern wherein a plurality of pixels to be turned on successively are arranged in a matrix, and the rectangular pattern includes a plurality of sub patterns formed by arranging m basic patterns formed such that, in a partly lacking matrix having eight rows and seven columns, the pixels of the fourth to sixth columns which form the first row of the partly lacking matrix are turned on n+28×
  
  mth, n+34×
  
  mth, and n+38×
  
  mth, respectively;
  
  the pixels of the first to sixth columns which form the second row of the partly lacking matrix are turned on n+36×
  
  mth, n+26×
  
  mth, n+14×
  
  mth, n+16×
  
  mth, n+24×
  
  mth, and n+30×
  
  mth, respectively;
  
  the pixels of the first to sixth columns which form the third row of the partly lacking matrix are turned on n+32×
  
  mth, n+20×
  
  mth, n+8×
  
  mth, n+6×
  
  mth, n+10×
  
  mth, and n+18×
  
  mth, respectively;
  
  the pixels of the first to seventh columns which form the fourth row of the partly lacking matrix are turned on n+27×
  
  mth, n+9×
  
  mth, n+2×
  
  mth, nth, n+4×
  
  mth, n+12×
  
  mth, and n+22×
  
  mth, respectively;
  
  the pixels of the first to seventh columns which form the fifth row of the partly lacking matrix are turned on n+21×
  
  mth, n+11×
  
  mth, n+3×
  
  mth, n+mth, n+5×
  
  mth, n+17×
  
  mth, and n+33×
  
  mth, respectively;
  
  the pixels of the second to seventh columns which form the sixth row of the partly lacking matrix are turned on n+25×
  
  mth, n+15×
  
  mth, n+7×
  
  mth, n+13×
  
  mth, n+29×
  
  mth, and n+37×
  
  mth, respectively;
  
  the pixels of the second to fifth columns which form the seventh row of the partly lacking matrix are turned on n+35×
  
  mth, n+31×
  
  mth, n+23×
  
  mth, and n+19×
  
  mth, respectively; and
  
  the pixel of the second column which forms the eighth row of the partly lacking matrix is turned on n+39×
  
  mth, m and n being arbitrary natural numbers, and the turn-on order of the pixels is set so that dots having shapes same as each other individually grow in order based on said plurality of sub patterns.

11. A printing method, comprising:
- a step of preparing a binarization dither matrix pattern which is formed as a rectangular pattern wherein a plurality of pixels to be turned on successively are arranged in a matrix, the rectangular pattern including a plurality of basic patterns formed such that, in a partly lacking matrix having four rows and three columns, the pixels of the first to third columns which form the first row of the partly lacking matrix are turned on 7th, 5th, and 9th, respectively;
  
  the pixels of the first to thi rd, columns which form the second row of the partly lacking matrix are turned on 4th, 1st, and 3rd, respectively;
  
  the pixels of the first to third columns which form the thi rd, row of the partly lacking matrix are turned on 6th, 2nd, and 8th, respectively; and
  
  the pixel of the first column which forms the fourth row of the partly lacking matrix is turned on 10th, the turn-on order of the pixels being set so that dots having shapes same as each other individually grow from a plurality of points; and
  
  an image forming step of selecting the pixels from the starting pixel in the turn-on order to the pixel to which a predetermined turn-on order number is set in the binarization dither matrix pattern in accordance with the turn-on order based on a pixel value of an inputted multi-value image to determine the pixels on which a color material is to be formed and forming the color material on the determined pixels to form an image.

12. A printing method, comprising:
- a step of preparing a binarization dither matrix pattern which is formed as a rectangular pattern wherein a plurality of pixels to be turned on successively are arranged in a matrix, the rectangular pattern including a plurality of sub patterns formed by arranging m basic patterns formed such that, in a partly lacking matrix having four rows and three columns, the pixels of the first to third columns which form the first row of the partly lacking matrix are turned on n+6×
  
  mth, n+4×
  
  mth, and n+8×
  
  mth, respectively;
  
  the pixels of the first to third columns which form the second row of the partly lacking matrix are turned on n+3×
  
  mth, nth, and n+2×
  
  mth, respectively;
  
  the pixels of the first to third columns which form the third row of the partly lacking matrix are turned on n+5×
  
  mth, n+mth, and n+7×
  
  mth, respectively; and
  
  the pixel of the first column which forms the four throw of the partly lacking matrix is turned on n+9×
  
  mth, m and n being arbitrary natural numbers, the turn-on order of the pixels being set so that dots having shapes same as each other individually grow from a plurality of points; and
  
  an image forming step of selecting the pixels from the starting pixel in the turn-on order to the pixel to which a predetermined turn-on order number is set in the binarization dither matrix pattern in accordance with the turn-on order based on a pixel value of an inputted multi-value image to determine the pixels on which a color material is to be formed and forming the color material on the determined pixels to form an image.

13. A printing method, comprising:
- a step of preparing a binarization dither matrix pattern which is formed as a rectangular pattern wherein a plurality of pixels to be turned on successively are arranged in a matrix, the rectangular pattern including a plurality of basic patterns formed such that, in a partly lacking matrix having five rows and four columns, the pixels of the first to fourth columns which form the first row of the partly lacking matrix are turned on 14th, 6th, 12th, and 16th, respectively;
  
  the pixels of the first to fourth columns which form the second row of the partly lacking matrix are turned on 10th, 2nd, 4th, and 8th, respectively;
  
  the pixels of the first to fourth columns which form the third row of the partly lacking matrix are turned on 5th, 1st, 3rd, and 11th, respectively;
  
  the pixels of the first to fourth columns which form the fourth row of the partly lacking matrix are turned on 13th, 9th, 7th, and 15th, respectively; and
  
  the pixel of the first column which forms the fifth row of the partly lacking matrix is turned on 17th, the turn-on order of the pixels being set so that dots having shapes same as each other individually grow from a plurality of points; and
  
  an image forming step of selecting the pixels from the starting pixel in the turn-on order to the pixel to which a predetermined turn-on order number is set in the binarization dither matrix pattern in accordance with the turn-on order based on a pixel value of an inputted multi-value image to determine the pixels on which a color material is to be formed and forming the color material on the determined pixels to form an image.

14. A printing method, comprising:
- a step of preparing a binarization dither matrix pattern which is formed as a rectangular pattern wherein a plurality of pixels to be turned on successively are arranged in a matrix, the rectangular pattern including a plurality of sub patterns formed by arranging m basic patterns formed such that, in a partly lacking matrix having five rows and four columns, the pixels of the first to fourth columns which form the first row of the partly lacking matrix are turned on n+13×
  
  mth, n+5×
  
  mth, n+11×
  
  mth, and n+15×
  
  mth, respectively;
  
  the pixels of the first to fourth columns which form the second row of the partly lacking matrix are turned on n+9×
  
  mth, n+mth, n+3×
  
  mth, and n+7×
  
  mth, respectively;
  
  the pixels of the first to fourth columns which form the third row of the partly lacking matrix are turned on n+4×
  
  mth, nth, n+2×
  
  mth, and n+10×
  
  mth, respectively;
  
  the pixels of the first to fourth columns which form the fourth row of the partly lacking matrix are turned on n+12×
  
  mth, n+8×
  
  mth, n+6×
  
  mth, and n+14×
  
  mth, respectively; and
  
  the pixel of the first column which forms the fifth row of the partly lacking matrix is turned on n+16×
  
  mth, m and n being arbitrary natural numbers, the turn-on order of the pixels being set so that dots having shapes same as each other individually grow from a plurality of points; and
  
  an image forming step of selecting the pixels from the starting pixel in the turn-on order to the pixel to which a predetermined turn-on order number is set in the binarization dither matrix pattern in accordance with the turn-on order based on a pixel value of an inputted multi-value image to determine the pixels on which a color material is to be formed and forming the color material on the determined pixels to form an image.

15. A printing method, comprising:
- a step of preparing a binarization dither matrix pattern which is formed as a rectangular pattern wherein a plurality of pixels to be turned on successively are arranged in a matrix, the rectangular pattern including a plurality of basic patterns formed such that, in a partly lacking matrix having six rows and five columns, the pixels of the first to fifth columns which form the first row of the partly lacking matrix are turned on 23rd, 15th, 13th, 21st, and 25th, respectively;
  
  the pixels of the first to fifth columns which form the second row of the partly lacking matrix are turned on 19th, 7th, 5th, 9th, and 17th, respectively;
  
  the pixels of the first to fifth columns which form the third row of the partly lacking matrix are turned on 12th, 4th, 1st, 3rd, and 11th, respectively;
  
  the pixels of the first to fifth columns which form the fourth row of the partly lacking matrix are turned on 14th, 6th, 2nd, 8th, and 20th, respectively;
  
  the pixels of the first to fifth columns which form the fifth row of the partly lacking matrix are turned on 22nd, 18th, 10th, 16th, and 24th, respectively; and
  
  the pixel of the first column which forms the sixth row of the partly lacking matrix is turned on 26th, the turn-on order of the pixels being set so that dots having shapes same as each other individually grow from a plurality of points; and
  
  an image forming step of selecting the pixels from the starting pixel in the turn-on order to the pixel to which a predetermined turn-on order number is set in the binarization dither matrix pattern in accordance with the turn-on order based on a pixel value of an inputted multi-value image to determine the pixels on which a color material is to be formed and forming the color material on the determined pixels to form an image.

16. A printing method, comprising:
- a step of preparing a binarization dither matrix pattern which is formed as a rectangular pattern wherein a plurality of pixels to be turned on successively are arranged in a matrix, the rectangular pattern including a plurality of sub patterns formed by arranging m basic patterns formed such that, in a partly lacking matrix having six rows and five columns, the pixels of the first to fifth columns which form the first row of the partly lacking matrix are turned on n+22×
  
  mth, n+14×
  
  mth, n+12×
  
  mth, n+20×
  
  mth, and n+24×
  
  mth, respectively;
  
  the pixels of the first to fifth columns which form the second row of the partly lacking matrix are turned on n+18×
  
  mth, n+6×
  
  mth, n+4×
  
  mth, n+8×
  
  mth, and n+16×
  
  mth, respectively;
  
  the pixels of the first to fifth columns which form the third row of the partly lacking matrix are turned on n+11×
  
  mth, n+3×
  
  mth, nth, n+2×
  
  mth, and n+10×
  
  mth, respectively;
  
  the pixels of the first to fifth columns which form the fourth row of the partly lacking matrix are turned on n+13×
  
  mth, n+5×
  
  mth, n+mth, n+7×
  
  mth, and n+19×
  
  mth, respectively;
  
  the pixels of the first to fifth columns which form the fifth row of the partly lacking matrix are turned on n+21×
  
  mth, n+17×
  
  mth, n+9×
  
  mth, n+15×
  
  mth, and n+23×
  
  mth, respectively; and
  
  the pixel of the first column which forms the sixth row of the partly lacking matrix is turned on n+25×
  
  mth, m and n being arbitrary natural numbers, the turn-on order of the pixels being set so that dots having shapes same as each other individually grow from a plurality of points; and
  
  an image forming step of selecting the pixels from the starting pixel in the turn-on order to the pixel to which a predetermined turn-on order number is set in the binarization dither matrix pattern in accordance with the turn-on order based on a pixel value of an inputted multi-value image to determine the pixels on which a color material is to be formed and forming the color material on the determined pixels to form an image.

17. A printing method, comprising:
- a step of preparing a binarization dither matrix pattern which is formed as a rectangular pattern wherein a plurality of pixels to be turned on successively are arranged in a matrix, the rectangular pattern including a plurality of basic patterns formed such that, in a partly lacking matrix having seven rows and six columns, the pixels of the first to sixth columns which form the first row of the partly lacking matrix are turned on 34th, 26th, 14th, 24th, 32nd, and 36th, respectively;
  
  the pixels of the first to sixth columns which form the second row of the partly lacking matrix are turned on 30th, 16th, 8th, 12th, 20th, and 28th, respectively;
  
  the pixels of the first to sixth columns which form the third row of the partly lacking matrix are turned on 22nd, 6th, 2nd, 4th, 10th, and 18th, respectively;
  
  the pixels of the first to sixth columns which form the fourth row of the partly lacking matrix are turned on 15th, 5th, 1st, 3rd, 11th, and 23rd, respectively;
  
  the pixels of the first to sixth columns which form the fifth row of the partly lacking matrix are turned on 25th, 13th, 7th, 9th, 19th, and 31st, respectively;
  
  the pixels of the first to sixth columns which form the sixth row of the partly lacking matrix are turned on 33rd, 29th, 21st, 17th, 27th, and 35th, respectively; and
  
  the pixel of the first column which forms the seventh row of the partly lacking matrix is turned on 37th, the turn-on order of the pixels being set so that dots having shapes same as each other individually grow from a plurality of points; and
  
  an image forming step of selecting the pixels from the starting pixel in the turn-on order to the pixel to which a predetermined turn-on order number is set in the binarization dither matrix pattern in accordance with the turn-on order based on a pixel value of an inputted multi-value image to determine the pixels on which a color material is to be formed and forming the color material on the determined pixels to form an image.

18. A printing method, comprising:
- a step of preparing a binarization dither matrix pattern which is formed as a rectangular pattern wherein a plurality of pixels to be turned on successively are arranged in a matrix, the rectangular pattern including a plurality of sub patterns formed by arranging m basic patterns formed such that, in a partly lacking matrix having seven rows and six columns, the pixels of the first to sixth columns which form the first row of the partly lacking matrix are turned on n+33×
  
  mth, n+25×
  
  mth, n+13×
  
  mth, n+23×
  
  mth, n+31×
  
  mth, and n+35×
  
  mth, respectively;
  
  the pixels of the first to sixth columns which form the second row of the partly lacking matrix are turned on n+29×
  
  mth, n+15×
  
  mth, n+7×
  
  mth, n+11×
  
  mth, n+19×
  
  mth, and n+27×
  
  mth, respectively;
  
  the pixels of the first to sixth columns which form the third row of the partly lacking matrix are turned on n+21×
  
  mth, n+5×
  
  mth, n+mth, n+3×
  
  mth, n+9×
  
  mth, and n+17×
  
  mth, respectively;
  
  the pixels of the first to sixth columns which form the fourth row of the partly lacking matrix are turned on n+14×
  
  mth, n+4×
  
  mth, nth, n+2×
  
  mth, n+10×
  
  mth, and n+22×
  
  mth, respectively;
  
  the pixels of the first to sixth columns which form the fifth row of the partly lacking matrix are turned on n+24×
  
  mth, n+12×
  
  mth, n+6×
  
  mth, n+8×
  
  mth, n+18×
  
  mth, and n+30×
  
  mth, respectively;
  
  the pixels of the first to sixth columns which form the sixth row of the partly lacking matrix are turned on n+32×
  
  mth, n+28×
  
  mth, n+20×
  
  mth, n+16×
  
  mth, n+26×
  
  mth, and n+34×
  
  mth, respectively; and
  
  the pixel of the first column which forms the seventh row of the partly lacking matrix is turned on n+36×
  
  mth, m and n being arbitrary natural numbers, the turn-on order of the pixels being set so that dots having shapes same as each other individually grow from a plurality of points; and
  
  an image forming step of selecting the pixels from the starting pixel in the turn-on order to the pixel to which a predetermined turn-on order number is set in the binarization dither matrix pattern in accordance with the turn-on order based on a pixel value of an inputted multi-value image to determine the pixels on which a color material is to be formed and forming the color material on the determined pixels to form an image.

19. A printing method, comprising:
- a step of preparing a binarization dither matrix pattern which is formed as a rectangular pattern wherein a plurality of pixels to be turned on successively are arranged in a matrix, the rectangular pattern including a plurality of basic patterns formed such that, in a partly lacking matrix having eight rows and seven columns, the pixels of the fourth to sixth columns which form the first row of the partly lacking matrix are turned on 29th, 35th, and 39th, respectively;
  
  the pixels of the first to sixth columns which form the second row of the partly lacking matrix are turned on 37th, 27th, 15th, 17th, 25th, and 31st, respectively;
  
  the pixels of the first to sixth columns which form the third row of the partly lacking matrix are turned on 33rd, 21st, 9th, 7th, 11th, and 19th, respectively;
  
  the pixels of the first to seventh columns which form the fourth row of the partly lacking matrix are turned on 28th, 10th, 3rd, 1st, 5th, 13th, and 23rd, respectively;
  
  the pixels of the first to seventh columns which form the fifth row of the partly lacking matrix are turned on 22nd, 12th, 4th, 2nd, 6th, 18th, and 34th, respectively;
  
  the pixels of the second to seventh columns which form the sixth row of the partly lacking matrix are turned on 26th, 16th, 8th, 14th, 30th, and 38th, respectively;
  
  the pixels of the second to fifth columns which form the seventh row of the partly lacking matrix are turned on 36th, 32nd, 24th, and 20th, respectively; and
  
  the pixel of the second column which forms the eighth row of the partly lacking matrix is turned on 40th, the turn-on order of the pixels being set so that dots having shapes same as each other individually grow from a plurality of points; and
  
  an image forming step of selecting the pixels from the starting pixel in the turn-on order to the pixel to which a predetermined turn-on order number is set in the binarization dither matrix pattern in accordance with the turn-on order based on a pixel value of an inputted multi-value image to determine the pixels on which a color material is to be formed and forming the color material on the determined pixels to form an image.

20. A printing method, comprising:
- a step of preparing a binarization dither matrix pattern which is formed as a rectangular pattern wherein a plurality of pixels to be turned on successively are arranged in a matrix, the rectangular pattern including a plurality of sub patterns formed by arranging m basic patterns formed such that, in a partly lacking matrix having eight rows and seven columns, the pixels of the fourth to sixth columns which form the first row of the partly lacking matrix are turned on n+28×
  
  mth, n+34×
  
  mth, and n+38×
  
  mth, respectively;
  
  the pixels of the first to sixth columns which form the second row of the partly lacking matrix are turned on n+36×
  
  mth, n+26×
  
  mth, n+14×
  
  mth, n+16×
  
  mth, n+24×
  
  mth, and n+30×
  
  mth, respectively;
  
  the pixels of the first to sixth columns which form the third row of the partly lacking matrix are turned on n+32×
  
  mth, n+20×
  
  mth, n+8×
  
  mth, n+6×
  
  mth, n+10×
  
  mth, and n+18×
  
  mth, respectively;
  
  the pixels of the first to seventh columns which form the fourth row of the partly lacking matrix are turned on n+27×
  
  mth, n+9×
  
  mth, n+2×
  
  mth, nth, n+4×
  
  mth, n+12×
  
  mth, and n+22×
  
  mth, respectively;
  
  the pixels of the first to seventh columns which form the fifth row of the partly lacking matrix are turned on n+21×
  
  mth, n+11×
  
  mth, n+3×
  
  mth, n+mth, n+5×
  
  mth, n+17×
  
  mth, and n+33×
  
  mth, respectively;
  
  the pixels of the second to seventh columns which form the sixth row of the partly lacking matrix are turned on n+25×
  
  mth, n+15×
  
  mth, n+7×
  
  mth, n+13×
  
  mth, n+29×
  
  mth, and n+37×
  
  mth, respectively;
  
  the pixels of the second to fifth columns which form the seventh row of the partly lacking matrix are turned on n+35×
  
  mth, n+31×
  
  mth, n+23×
  
  mth, and n+19×
  
  mth, respectively; and
  
  the pixel of the second column which forms the eighth row of the partly lacking matrix is turned on n+39×
  
  mth, m and n being arbitrary natural numbers, the turn-on order of the pixels being set so that dots having shapes same as each other individually grow from a plurality of points; and
  
  an image forming step of selecting the pixels from the starting pixel in the turn-on order to the pixel to which a predetermined turn-on order number is set in the binarization dither matrix pattern in accordance with the turn-on order based on a pixel value of an inputted multi-value image to determine the pixels on which a color material is to be formed and forming the color material on the determined pixels to form an image.

23. A printing apparatus, comprising:
- a storage area for expanding a multi-value image; and
  
  an image forming section for binarizing the multi-value image expanded in said storage area using a binarization dither matrix pattern and forming an image based on a result of the binarization; and
  
  wherein the binarization dither matrix pattern is configured as a rectangular pattern wherein a plurality of pixels to be turned on successively are arranged in a matrix, and the rectangular pattern includes a plurality of basic patterns formed such that, in a partly lacking matrix having four rows and three columns, the pixels of the first to third columns which form the first row of the partly lacking matrix are turned on 7th, 5th, and 9th, respectively;
  
  the pixels of the first to third columns which form the second row of the partly lacking matrix are turned on 4th, 1st, and 3rd, respectively;
  
  the pixels of the first to thi rd, columns which form the third row of the partly lacking matrix are turned on 6th, 2nd, and 8th, respectively; and
  
  the pixel of the first column which forms the fourth row of the partly lacking matrix is turned on 10th, and the turn-on order of the pixels is set so that dots having shapes same as each other individually grow in order from a plurality of points.
- View Dependent Claims (33, 34)
- - 33. The printing apparatus as claimed in claim 23, wherein, in the binarization dither matrix pattern, the rectangular pattern to which the turn-on order is set is turned 90 or 270 degrees.
  - 34. The printing apparatus as claimed in claim 23, wherein, in the binarization dither matrix pattern, the turn-on order number set to an arbitrary pixel in the rectangular pattern and the turn-on order number set to a pixel at a point symmetric to the pixel with respect to the center of the rectangular pattern are exchanged for each other.

24. A printing apparatus, comprising:
- a storage area for expanding a multi-value image; and
  
  an image forming section for binarizing the multi-value image expanded in said storage area using a binarization dither matrix pattern and forming an image based on a result of the binarization; and
  
  wherein the binarization dither matrix pattern is configured as a rectangular pattern wherein a plurality of pixels to be turned on successively are arranged in a matrix, and the rectangular pattern includes a plurality of sub patterns formed by arranging m basic patterns formed such that, in a partly lacking matrix having four rows and three columns, the pixels of the first to third columns which form the first row of the partly lacking matrix are turned on n+6×
  
  mth, n+4×
  
  mth, and n+8×
  
  mth, respectively;
  
  the pixels of the first to third columns which form the second row of the partly lacking matrix turned on n+3×
  
  mth, nth, and n+2×
  
  mth, respectively;
  
  the pixels of the first to thi rd, columns which form the third row of the partly lacking matrix are turned on n+5×
  
  mth, n+mth, and n+7×
  
  mth, respectively; and
  
  the pixel of the first column which forms the fourth row of the partly lacking matrix is turned on n+9×
  
  mth, m and n being arbitrary natural numbers, and the turn-on order of the pixels is set so that dots having shapes same as each other individually grow in order based on said plurality of sub patterns.

25. A printing apparatus, comprising:
- a storage area for expanding a multi-value image; and
  
  an image forming section for binarizing the multi-value image expanded in said storage area using a binarization dither matrix pattern and forming an image based on a result of the binarization; and
  
  wherein the binarization dither matrix pattern is configured as a rectangular pattern wherein a plurality of pixels to be turned on successively are arranged in a matrix, and the rectangular pattern includes a plurality of basic patterns formed such that, in a partly lacking matrix having five rows and four columns, the pixels of the first to fourth columns which form the first row of the partly lacking matrix are turned on 14th, 6th, 12th, and 16th, respectively;
  
  the pixels of the first to fourth columns which form the second row of the partly lacking matrix are turned on 10th, 2nd, 4th, and 8th, respectively;
  
  the pixels of the first to fourth columns which form the thi rd, row of the partly lacking matrix are turned on 5th, 1st, 3rd, and 11th, respectively;
  
  the pixels of the first to fourth columns which form the fourth row of the partly lacking matrix are turned on 13th, 9th, 7th, and 15th, respectively; and
  
  the pixel of the first column which forms the fifth row of the partly lacking matrix is turned on 17th, and the turn-on order of the pixels is set so that dots having shapes same as each other individually grow in order from a plurality of points.

26. A printing apparatus, comprising:
- a storage area for expanding a multi-value image; and
  
  an image forming section for binarizing the multi-value image expanded in said storage area using a binarization dither matrix pattern and forming an image based on a result of the binarization; and
  
  wherein the binarization dither matrix pattern is configured as a rectangular pattern wherein a plurality of pixels to be turned on successively are arranged in a matrix, and the rectangular pattern includes a plurality of sub patterns formed by arranging m basic patterns formed such that, in a partly lacking matrix having five rows and four columns, the pixels of the first to fourth column which form the first row of the partly lacking matrix are turned on n+13×
  
  mth, n+5×
  
  mth, n+11×
  
  mth, and n+15×
  
  mth, respectively;
  
  the pixels of the first to fourth columns which form the second row of the partly lacking matrix are turned on n+9×
  
  mth, n+mth, n+3×
  
  mth, and n+7×
  
  mth, respectively;
  
  the pixels of the first to fourth columns which form the third row of the partly lacking matrix are turned on n+4×
  
  mth, nth, n+2×
  
  mth, and n+10×
  
  mth, respectively;
  
  the pixels of the first to fourth columns which form the fourth row of the partly lacking matrix are turned on n+12×
  
  mth, n+8×
  
  mth, n+6×
  
  mth, and n+14×
  
  mth, respectively; and
  
  the pixel of the first column which forms the fifth row of the partly lacking matrix is turned on n+16×
  
  mth, m and n being arbitrary natural numbers, and the turn-on order of the pixels is set so that dots having shapes same as each other individually grow in order based on said plurality of sub patterns.

27. A printing apparatus, comprising:
- a storage area for expanding a multi-value image; and
  
  an image forming section for binarizing the multi-value image expanded in said storage area using a binarization dither matrix pattern and forming an image based on a result of the binarization; and
  
  wherein the binarization dither matrix pattern is configured as a rectangular pattern wherein a plurality of pixels to be turned on successively are arranged in a matrix, and the rectangular pattern includes a plurality of basic patterns formed such that, in a partly lacking matrix having six rows and five columns, the pixels of the first to fifth columns which form the first row of the partly lacking matrix are turned on 23rd, 15th, 13th, 21st, and 25th, respectively;
  
  the pixels of the first to fifth columns which form the second row of the partly lacking matrix are turned on 19th, 7th, 5th, 9th, and 17th, respectively;
  
  the pixels of the first to fifth columns which form the third row of the partly lacking matrix are turned on 12th, 4th, 1st, 3rd, and 11th, respectively;
  
  the pixels of the first to fifth columns which form the fourth row of the partly lacking matrix are turned on 14th, 6th, 2nd, 8th, and 20th, respectively;
  
  the pixels of the first to fifth columns which form the fifth row of the partly lacking matrix are turned on 22nd, 18th, 10th, 16th, and 24th, respectively; and
  
  the pixel of the first column which forms the sixth row of the partly lacking matrix is turned on 26th, and the turn-on order of the pixels is set so that dots having shapes same as each other individually grow in order from a plurality of points.

28. A printing apparatus, comprising:
- a storage area for expanding a multi-value image; and
  
  an image forming section for binarizing the multi-value image expanded in said storage area using a binarization dither matrix pattern and forming an image based on a result of the binarization; and
  
  wherein the binarization dither matrix pattern is configured as a rectangular pattern wherein a plurality of pixels to be turned on successively are arranged in a matrix, and the rectangular pattern includes a plurality of sub patterns formed by arranging m basic patterns formed such that, in a partly lacking matrix having six rows and five columns, the pixels of the first to fifth columns which form the first row of the partly lacking matrix are turned on n+22×
  
  mth, n+14×
  
  mth, n+12×
  
  mth, n+20×
  
  mth, and n+24×
  
  mth, respectively;
  
  the pixels of the first to fifth columns which form the second row of the partly lacking matrix are turned on n+18×
  
  mth, n+6×
  
  mth, n+4×
  
  mth, n+8×
  
  mth, and n+16×
  
  mth, respectively;
  
  the pixels of the first to fifth columns which form the third row of the partly lacking matrix are turned on n+11×
  
  mth, n+3×
  
  mth, nth, n+2×
  
  mth, and n+10×
  
  mth, respectively;
  
  the pixels of the first to fifth columns which form the fourth row of the partly lacking matrix are turned on n+13×
  
  mth, n+5×
  
  mth, n+mth, n+7×
  
  mth, and n+19×
  
  mth, respectively;
  
  the pixels of the first to fifth columns which form the fifth row of the partly lacking matrix are turned on n+21×
  
  mth, n+17×
  
  mth, n+9×
  
  mth, n+15×
  
  mth, and n+23×
  
  mth, respectively; and
  
  the pixel of the first column which forms the sixth row of the partly lacking matrix is turned on n+25×
  
  mth, m and n being arbitrary natural numbers, and the turn-on order of the pixels is set so that dots having shapes same as each other individually grow in order based on said plurality of sub patterns.

29. A printing apparatus, comprising:
- a storage area for expanding a multi-value image; and
  
  an image forming section for binarizing the multi-value image expanded in said storage area using a binarization dither matrix pattern and forming an image based on a result of the binarization; and
  
  wherein the binarization dither matrix pattern is configured as a rectangular pattern wherein a plurality of pixels to be turned on successively are arranged in a matrix, and the rectangular pattern includes a plurality of basic patterns formed such that, in a partly lacking matrix having seven rows and six columns, the pixels of the first to sixth columns which form the first row of the partly lacking matrix are turned on 34th, 26th, 14th, 24th, 32nd, and 36th, respectively;
  
  the pixels of the first to sixth columns which form the second row of the partly lacking matrix are turned on 30th, 16th, 8th, 12th, 20th, and 28th, respectively;
  
  the pixels of the first to sixth columns which form the third row of the partly lacking matrix are turned on 22nd, 6th, 2nd, 4th, 10th, and 18th, respectively;
  
  the pixels of the first to sixth columns which form the fourth row of the partly lacking matrix are turned on 15th, 5th, 1st, 3rd, 11th, and 23rd, respectively;
  
  the pixels of the first to sixth columns which form the fifth row of the partly lacking matrix are turned on 25th, 13th, 7th, 9th, 19th, and 31st, respectively;
  
  the pixels of the first to sixth columns which form the sixth row of the partly lacking matrix are turned on 33rd, 29th, 21st, 17th, 27th, and 35th, respectively; and
  
  the pixel of the first column which forms the seventh row is turned on 37th, and the turn-on order of the pixels is set so that dots having shapes same as each other individually grow in order from a plurality of points.

30. A printing apparatus, comprising:
- a storage area for expanding a multi-value image; and
  
  an image forming section for binarizing the multi-value image expanded in said storage area using a binarization dither matrix pattern and forming an image based on a result of the binarization; and
  
  wherein the binarization dither matrix pattern is configured as a rectangular pattern wherein a plurality of pixels to be turned on successively are arranged in a matrix, and the rectangular pattern includes a plurality of sub patterns formed by arranging m basic patterns formed such that, in a partly lacking matrix having seven rows and six columns, the pixels of the first to sixth columns which form the first row of the partly lacking matrix are turned on n+33×
  
  mth, n+25×
  
  mth, n+13×
  
  mth, n+23×
  
  mth, n+31×
  
  mth, and n+35×
  
  mth, respectively;
  
  the pixels of the first to sixth columns which form the second row of the partly lacking matrix are turned on n+29×
  
  mth, n+15×
  
  mth, n+7×
  
  mth, n+11×
  
  mth, n+19×
  
  mth, and n+27×
  
  mth, respectively;
  
  the pixels of the first to sixth columns which form the third row of the partly lacking matrix are turned on n+21×
  
  mth, n+5×
  
  mth, n+mth, n+3×
  
  mth, n+9×
  
  mth, and n+17×
  
  mth, respectively;
  
  the pixels of the first to sixth columns which form the fourth row of the partly lacking matrix are turned on n+14×
  
  mth, n+4×
  
  mth, nth, n+2×
  
  mth, n+10×
  
  mth, and n+22×
  
  mth, respectively;
  
  the pixels of the first to sixth columns which form the fifth row of the partly lacking matrix are turned on n+24×
  
  mth, n+12×
  
  mth, n+6×
  
  mth, n+8×
  
  mth, n+18×
  
  mth, and n+30×
  
  mth, respectively;
  
  the pixels of the first to sixth columns which form the sixth row of the partly lacking matrix are turned on n+32×
  
  mth, n+28×
  
  mth, n+20×
  
  mth, n+16×
  
  mth, n+26×
  
  mth, and n+34×
  
  mth, respectively; and
  
  the pixel of the first column which forms the seventh row of the partly lacking matrix is turned on n+36×
  
  mth, m and n being arbitrary natural numbers, and the turn-on order of the pixels is set so that dots having shapes same as each other individually grow in order based on said plurality of sub patterns.

31. A printing apparatus, comprising:
- a storage area for expanding a multi-value image; and
  
  an image forming section for binarizing the multi-value image expanded in said storage area using a binarization dither matrix pattern and forming an image based on a result of the binarization; and
  
  wherein the binarization dither matrix pattern is configured as a rectangular pattern wherein a plurality of pixels to be turned on successively are arranged in a matrix, and the rectangular pattern includes a plurality of basic patterns formed such that, in a partly lacking matrix having eight rows and seven columns, the pixels of the fourth to sixth columns which form the first row of the partly lacking matrix are turned on 29th, 35th, and 39th, respectively;
  
  the pixels of the first to sixth columns which form the second row of the partly lacking matrix are turned on 37th, 27th, 15th, 17th, 25th, and 31st, respectively;
  
  the pixels of the first to sixth columns which form the third row of the partly lacking matrix are turned on 33rd, 21st, 9th, 7th, 11th, and 19th, respectively;
  
  the pixels of the first to seventh columns which form the fourth row of the partly lacking matrix are turned on 28th, 10th, 3rd, 1st, 5th, 13th, and 23rd, respectively;
  
  the pixels of the first to seventh columns which form the fifth row of the partly lacking matrix are turned on 22nd, 12th, 4th, 2nd, 6th, 18th, and 34th, respectively;
  
  the pixels of the second to seventh columns which form the sixth row of the partly lacking matrix are turned on 26th, 16th, 8th, 14th, 30th, and 38th, respectively;
  
  the pixels of the second to fifth columns which form the seventh row of the partly lacking matrix are turned on 36th, 32nd, 24th, and 20th, respectively; and
  
  the pixel of the second column which forms the eighth row of the partly lacking matrix is turned on 40th, and the turn-on order of the pixels is set so that dots having shapes same as each other individually grow in order from a plurality of points.

32. A printing apparatus, comprising:
- a storage area for expanding a multi-value image; and
  
  an image forming section for binarizing the multi-value image expanded in said storage area using a binarization dither matrix pattern and forming an image based on a result of the binarization; and
  
  wherein the binarization dither matrix pattern is configured as a rectangular pattern wherein a plurality of pixels to be turned on successively are arranged in a matrix, and the rectangular pattern includes a plurality of sub patterns formed by arranging m basic patterns formed such that, in a partly lacking matrix having eight rows and seven columns, the pixels of the fourth to sixth columns which form the first row of the partly lacking matrix are turned on n+28×
  
  mth, n+34×
  
  mth, and n+38×
  
  mth, respectively;
  
  the pixels of the first to sixth columns which form the second row of the partly lacking matrix are turned on n+36×
  
  mth, n+26×
  
  mth, n+14×
  
  mth, n+16×
  
  mth, n+24×
  
  mth, and n+30×
  
  mth, respectively;
  
  the pixels of the first to sixth columns which form the third row of the partly lacking matrix are turned on n+32×
  
  mth, n+20×
  
  mth, n+8×
  
  mth, n+6×
  
  mth, n+10×
  
  mth, and n+18×
  
  mth, respectively;
  
  the pixels of the first to seventh columns which form the fourth row of the partly lacking matrix are turned on n+27×
  
  mth, n+9×
  
  mth, n+2×
  
  mth, nth, n+4×
  
  mth, n+12×
  
  mth, and n+22×
  
  mth, respectively;
  
  the pixels of the first to seventh columns which form the fifth row of the partly lacking matrix are turned on n+21×
  
  mth, n+11×
  
  mth, n+3×
  
  mth, n+mth, n+5×
  
  mth, n+17×
  
  mth, and n+33×
  
  mth, respectively;
  
  the pixels of the second to seventh columns which form the sixth row of the partly lacking matrix are turned on n+25×
  
  mth, n+15×
  
  mth, n+7×
  
  mth, n+13×
  
  mth, n+29×
  
  mth, and n+37×
  
  mth, respectively;
  
  the pixels of the second to fifth columns which form the seventh row of the partly lacking matrix are turned on n+35×
  
  mth, n+31×
  
  mth, n+23×
  
  mth, and n+19×
  
  mth, respectively; and
  
  the pixel of the second column which forms the eighth row of the partly lacking matrix is turned on n+39×
  
  mth, m and n being arbitrary natural numbers, and the turn-on order of the pixels is set so that dots having shapes same as each other individually grow in order based on said plurality of sub patterns.

Specification

Resources

Litigation Campaign Assessment

Current Assignee
Fujitsu Limited
Original Assignee
Fujitsu Limited
Inventors
Odagiri, Junichi, Usui, Nobuaki

Application Number

US10/740,793
Publication Number

US 20040130754A1
Time in Patent Office

Days
Field of Search
US Class Current

358/3.13
CPC Class Codes

H04N 1/4058 with details for producing ...

Printing method and printing apparatus

First Claim

1 Assignment

0 Petitions

Accused Products

Abstract

6 Citations

34 Claims

Specification

Solutions

Use Cases

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Printing method and printing apparatus

First Claim

1 Assignment

Subscription Required

Subscription Required

0 Petitions

Subscription Required

Accused Products

Subscription Required

Abstract

6 Citations

34 Claims

Specification

Subscription Required

Solutions

Use Cases

Quick Links