Granted Patent B2

US 7,548,345 · App. 10/279,390 · Granted Jun 16, 2009

Abstract

Claims (41)

1. A high-resolution printing method, comprising the steps of:

setting a print resolution mode;

selecting a predetermined column and a predetermined row of a print matrix based on said print resolution mode;

determining if a pixel of a plurality of pixels is a true black pixel;

positioning said true black pixel in said predetermined column and said predetermined row of said print matrix; and

printing said pixel.

2. The method of claim 1 , the method further comprising the step of positioning said pixel in said print matrix using a half-toning algorithm only where the said pixel is not true black.

3. The method of claim 2 , wherein the steps of determining, positioning said true black pixel and positioning said pixel that is not true black are repeated to fill said print matrix, said print matrix containing pixel placement information for a plurality of print scans.

4. The method of claim 3 , wherein said printing said pixel further includes printing selected pixels corresponding to a specific row and a specific column of said print matrix during one of said plurality of print scans.

5. The method of claim 4 , wherein all of said true black pixels in said print matrix are printed during one of said plurality of scans.

6. The method of claim 1 , wherein said predetermined column is one of an even numbered column and an odd numbered column.

7. The method of claim 1 , wherein said predetermined row is one of an even numbered row and an odd numbered row.

8. A high-resolution printing method, comprising the steps of:

setting a print resolution mode;

selecting a predetermined column of a plurality of columns and a predetermined row of a plurality of rows based on said print resolution mode;

determining if a pixel of a plurality of pixels is a true black pixel;

ascertaining whether a print scan includes said predetermined column and said predetermined row which conesponds to where said true black pixel is to be printed; and

printing said pixel.

9. The method of claim 8 , wherein if said pixel is not true black, the method further comprises the step of determining whether said pixel should be printed by using a half-toning algorithm.

10. The method of claim 8 , further comprising the step of repeating said determining step and said ascertaining step for each row and column conesponding to said print scan.

11. The method of claim 10 , wherein said printing said pixel further includes printing pixels assigned to said print scan.

12. The method of claim 11 , wherein each said step is repeated for a plurality of print scans.

13. The method of claim 8 , wherein all of said pixels determined to be true black pixels are printed during one scan.

14. The method of claim 8 , wherein all of said pixels determined to be true black pixels are printed during one scan that corresponds to one of even numbered columns and odd numbered columns of said plurality of columns.

15. The method of claim 8 , wherein all of said pixels determined to be true black pixels are printed during one scan that corresponds to one of even numbered rows and odd numbered rows.

16. An imaging system, comprising:

a computer; and

an imaging device including a controller in communicative connection with said computer, said controller configured to direct an image to a print media, said image including at least one of graphics and text, the imaging system employing a high-resolution printing method to print said image;

wherein said high-resolution printing method includes the steps of:

setting a print resolution mode;

selecting a predetermined column of a plurality of columns and a predetermined row of a plurality of rows based on said print resolution mode;

determining if a pixel of a plurality of pixels is a true black pixel;

ascertaining whether a print scan includes said predetermined column and said predetermined row which conesponds to where said true black pixel is to be printed; and

printing said pixel.

17. The system of claim 16 , wherein if said pixel is not true black, said high-resolution printing method further comprises the step of determining whether said pixel should be printed by using a half toning algorithm.

18. The system of claim 16 , wherein said high-resolution printing method further comprises the step of repeating said determining step and said ascertaining step for each row and column conesponding to said print scan.

19. The system of claim 18 , wherein said wherein said printing said pixel further includes printing pixels assigned to said print scan.

20. The system of claim 19 , wherein each step of said high-resolution printing method is repeated for a plurality of print scans.

21. The system of claim 16 , wherein all of said pixels determined to be true black pixels are printed during one scan.

22. The system of claim 16 , wherein all of said pixels determined to be true black pixels are printed during one scan that corresponds to one of even numbered columns and odd numbered columns of said plurality of columns.

23. The system of claim 16 , wherein all of said pixels determined to be true black pixels are printed during one scan that corresponds to one of even numbered rows and odd numbered rows.

Assignments (8)