Incremental printing of symbolic information – Light or beam marking apparatus or processes – Scan of light
Reexamination Certificate
2006-05-02
2006-05-02
Pham, Hai (Department: 2861)
Incremental printing of symbolic information
Light or beam marking apparatus or processes
Scan of light
Reexamination Certificate
active
07038707
ABSTRACT:
In a case of recording (printing) an image including texts and thin lines, the image is printed with an intended thickness without causing a crack in the thin lines. When the CAD mode is OFF in the apparatus proposed by this invention, assuming a pixel value indicative of a printing color component is 8 bits and the maximum value is 255, the value is reduced to, e.g., 90%, before halftoning is performed, and image forming is performed in accordance with the characteristic curve751which specifies the relation between the halftoning-processed data and the amount of exposure light. On the contrary, when the CAD mode is ON, halftoning is performed without reducing the pixel value indicative of a printing color components, and image forming is performed in accordance with the characteristic curve753which specifies the relation between the halftoning-processed data and the amount of exposure light.
REFERENCES:
patent: 5565995 (1996-10-01), Yamada et al.
patent: 5999202 (1999-12-01), Tanaka et al.
patent: 6751346 (2004-06-01), Shimizu
patent: 2001/0055129 (2001-12-01), Shimizu
patent: 2003/0179396 (2003-09-01), Ishizuka et al.
Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Pham Hai
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