Image printing method and non-impact printer wherein a received

Details Image printing method and non-impact printer wherein a received Image printing method and non-impact printer wherein a received

1993-03-25

1996-07-23

Wong, Peter S.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358455, 347130, 395108, 395109, H04N 140, G06F 1500, G01D 1514

Patent

active

055395252

ABSTRACT:
A method for printing an image including the step of generating a basic line timing signal and an additional line timing signal providing timings between respective timings of the basic line timing signal, producing a matrix by a video signal of a number of lines corresponding to a ratio of a resolution of the video signal to a resolution of a printing portion, producing one dot of a grayscale data signal having grayscale information of dots of the matrix, and driving a printing head by head drive energy determined according to the grayscale data signal, when an image is printed by using the printing head having a resolution in the raster direction less than the resolution of the video signal for forming the image to be printed. Although a number of dots for forming the image is reduced, amount of information is not reduced since dot information is converted into the grayscale information, so that high-quality printing is possible at a time of printing for grayscale.

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