Character printing method in ink-jet recorder

Details Character printing method in ink-jet recorder Character printing method in ink-jet recorder

1997-11-24

1999-11-09

Le, N.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347 37, 347 9, B41J 2145, B41J 215, B41J 2938, B41J 2300

Patent

active

059800194

ABSTRACT:
An ink-jet recording head is used to print characters simultaneously with a recording line. Data on measured temperature values in a data buffer 12 and what relates to one of the horizontal lines of a designated character pattern in a character buffer 14 are separately written by a write unit 10 into respective line buffers 8Y, 8R, 8B in accordance with respective printing colors after recording paper 1 is fed by 0.4 mm. The data in respective line buffers are read by a read unit 20 in synchronization with the travel of the recording head 4 via a pulse from a pulse generator 23 before being sent to respective drive units 30Y, 30R, 30B. The driving outputs are each applied to the corresponding piezoelectric elements 9Y, 9R, 9B and when the recording head 4 arrives at a predetermined printing position during the travel, corresponding color ink is jetted thereat. Consequently, the temperature value at a certain point of time and one of the horizontal lines of the dot matrix of the character designated is printed. Character printing is thus completed as the printing operation above is repeated.

REFERENCES:
patent: 1709926 (1929-04-01), Weaver
patent: 4353079 (1982-10-01), Kawanabe
patent: 4404572 (1983-09-01), Okamura et al.
patent: 4515487 (1985-05-01), Minami
patent: 4543590 (1985-09-01), Tazaki et al.
patent: 4631548 (1986-12-01), Milbrandt
patent: 5354135 (1994-10-01), Sakagami et al.
patent: 5408590 (1995-04-01), Dvorzsak
patent: 5424720 (1995-06-01), Kirkpatrick

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