Print method and apparatus

Details Print method and apparatus Print method and apparatus

1997-04-22

2000-12-12

Nguyen, Thinh

Incremental printing of symbolic information

Ink jet

Controller

347 43, 347 14, 358455, 358456, 358 19, B41J 2205, B41J 2938, B41J 221, H04N 140

Patent

active

061588369

ABSTRACT:
Multi-valued image data is separated into data in units of nozzle groups of the individual colors of a printhead, and each divided multi-valued image data is converted into n-valued image data consisting of a plurality of bits. Based on the n-valued image data of the corresponding colors, print codes are generated and are transmitted to a printer apparatus. The printer apparatus receives the print codes, stores them in print buffers of the corresponding colors, and generates print data based on the print codes using mask patterns set in correspondence with image data of the individual colors. The print timing in each scan of the printhead is determined in accordance with the significant bit position in the print data, and an image is printed on the basis of the print data by multi-pass printing.

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