Apparatus and method for printing high-quality color image at hi

Details Apparatus and method for printing high-quality color image at hi Apparatus and method for printing high-quality color image at hi

1996-04-26

1998-12-01

Wong, Peter S.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347 40, 347 9, B41J 2145, B41J 221, B41J 2938

Patent

active

058445854

ABSTRACT:
A color ink jet printer having high throughput and a high-quality printing capability is disclosed. Nozzle arrays for spouting black ink, cyan ink, magenta ink, and yellow ink are placed on a print head. Each of the nozzle arrays has N nozzles arranged in a vertical scanning direction at intervals of k times the dot pitch of a print image. The nozzles are driven at intermittent timing during the horizontal scanning of the print head for forming dots at intervals of s times the dot pitch. At the termination of the horizontal scanning, vertical scanning is executed by a given distance. The vertical scanning distance L is set so as to satisfy the following expression:

REFERENCES:
patent: 4198642 (1980-04-01), Gamblin
patent: 4272771 (1981-06-01), Furukawa
patent: 4920355 (1990-04-01), Katerberg
patent: 5059984 (1991-10-01), Moore et al.

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