Method and apparatus for printing stroke and contone data togeth

Details Method and apparatus for printing stroke and contone data togeth Method and apparatus for printing stroke and contone data togeth

1993-08-30

1995-10-17

Grimley, A. T.

Incremental printing of symbolic information

Light or beam marking apparatus or processes

Scan of light

355210, 358448, 358462, 395109, 347255, G01D 942

Patent

active

054594928

ABSTRACT:
A method and apparatus for printing stroke and contone data together are provided in which data to be printed (102) is identified by a processor (100) as being either stroke or contone data. For contone data, processor (100) controls a light source (14), a spatial light modulator (12), and an optical photoconductive drum (16) to generate image quality graphics by using spatial light modulation in the process and cross-process directions. For stroke data, processor (100) controls light source (14), spatial light modulator (12), and optical photoconductive drum (16) for high resolution printing by using intensity modulation. Processor (100) is operable to control light intensities through the use of lookup tables stored in a memory (104).

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James D. Foley, et al., "Computer Graphics Principles and Practice, 2nd Ed." Addison-Wesley Publishing Company, 1990, pp. 92-94, and 132-134.

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