Piezo impulse ink jet pulse delay to reduce mechanical and fluid

Details Piezo impulse ink jet pulse delay to reduce mechanical and fluid Piezo impulse ink jet pulse delay to reduce mechanical and fluid

1995-11-02

1998-09-01

Fuller, Benjamin R.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347 10, B41J 2045, B41J 2938

Patent

active

058017321

ABSTRACT:
An ink jet apparatus comprising an array of impulse ink jets is disclosed. Each of the ink jets includes a chamber having an orifice and a transducer coupled to the chamber, a signal generator applying firing signals to each transducer of each of the ink jets to eject droplets of ink on demand, and a controller for controlling the phase of the firing signals to prevent the simultaneous application of the firing signals to adjacent ink jets in the array. The orifices are linearly aligned and adjacent ink jets produce ink drops offset by less than the diameter of the drops. The natural ringing of the piezo crystals of the ink jet transducers has been found to occur at a frequency of about 46 kHz (period=22 .mu.s), and so a delay of about 25 ms, one-half the ringing period, is used to minimize cross-talk among neighboring channels.

REFERENCES:
patent: 4032929 (1977-06-01), Fischbeck et al.
patent: 4194210 (1980-03-01), Krause
patent: 4300144 (1981-11-01), Isayama et al.
patent: 4357614 (1982-11-01), Tamai
patent: 4379304 (1983-04-01), Heinzl et al.
patent: 4396924 (1983-08-01), Rosenstock
patent: 4459601 (1984-07-01), Howkins
patent: 4646106 (1987-02-01), Howkins
patent: 4680595 (1987-07-01), Cruz-Uribe et al.
patent: 4714934 (1987-12-01), Rogers
patent: 4901093 (1990-02-01), Ruggiero et al.
patent: 4965539 (1990-10-01), Hickman
patent: 5142296 (1992-08-01), Lopez et al.
patent: 5280310 (1994-01-01), Otsuka et al.
patent: 5422666 (1995-06-01), Koyama et al.
patent: 5450111 (1995-09-01), Mutoh

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