Ink jet recording apparatus and method of controlling thereof

Details Ink jet recording apparatus and method of controlling thereof Ink jet recording apparatus and method of controlling thereof

1994-03-01

1996-11-19

Bobb, Alrick

Incremental printing of symbolic information

Ink jet

Controller

B41J 2045

Patent

active

055767435

ABSTRACT:
An ink jet recording apparatus comprising: an ink jet recording head for sucking an ink into a pressure chamber and jetting an ink droplet from a nozzle opening by expanding and contracting the pressure chamber by a piezoelectric vibration element; the pressure chamber being formed of a nozzle plate and a vibration plate; and a signal generating device for generating signals. The signals includes a first signal for contracting the piezoelectric vibration element at a predetermined speed to suck the ink into the pressure chamber, a second signal for starting an extension process of the piezoelectric vibration element to splash the ink droplet from the nozzle opening by contracting the pressure chamber, a third signal for interrupting the extension process of the piezoelectric vibration element at least once while the extension process is still being performed and a fourth signal for resuming the extension process of the piezoelectric vibration element again after a predetermined period has elapsed.

REFERENCES:
patent: 4509059 (1985-04-01), Howkins
patent: 4523200 (1985-06-01), Howkins
patent: 5359350 (1994-10-01), Nakano et al.
Patent Abstracts of Japan, vol. 8, No. 238 (M-335), Oct. 31, 1984 (JP-A-59 118 466, Jul. 9, 1984).
Patent Abstracts of Japan, vol. 14, No. 83 (M-936), Feb. 16, 1990 (JP-A-01 297 256, Nov. 30, 1989).
Patent Abstracts of Japan, vol. 14, No. 420 (M-1023), Sep. 11, 1990 (JP-A-02 165 957, Jun. 26, 1990).

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