Typewriting machines – Typing by other than type-face or type-die – Thermal
Patent
1995-12-20
1997-09-30
Burr, Edgar S.
Typewriting machines
Typing by other than type-face or type-die
Thermal
347 43, 395115, B41J 221
Patent
active
056720165
ABSTRACT:
A color-image data control method for storing color image data inputted from an external device in a memory provided in a printer, for reading the color image data stored in this memory and for printing the read color image data by use of a print head, wherein the color image data is data obtained by performing a raster scan on each color component of the color image data according to the arrangement of the printing elements of the print head, wherein the memory provided in the printer has capacity sufficient to store all color components of color image data to be printed by use of all printing elements of the print head, wherein image data corresponding to each color component is read from the memory provided in the printer as a unit to be printed by all of the printing elements of the print head and is used to print one of the color components of an image, wherein color image data respectively sent from the external device are serially stored in spaces of the memory provided in the printer color, which are released by reading the image data respectively corresponding to color components. Thereby, the capacity of the memory can be reduced by half in comparison with that of the memories of a system employing a conventional method, and a high-speed printing can be realized by performing a multitasking operation.
REFERENCES:
patent: 4985850 (1991-01-01), Okamoto
patent: 5285296 (1994-02-01), Komooka
patent: 5450532 (1995-09-01), Bockman
Alps Electric Co. ,Ltd.
Bever Patrick T.
Burr Edgar S.
Kelley Steven S.
Shoup Guy W.
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