Incremental printing of symbolic information – Ink jet – Controller
Reexamination Certificate
2006-11-21
2006-11-21
Patel, Vip (Department: 2861)
Incremental printing of symbolic information
Ink jet
Controller
C347S011000
Reexamination Certificate
active
07137680
ABSTRACT:
A droplet discharging method for discharging a liquid inside a pressure chamber as a droplet from a nozzle, by applying a drive waveform to an actuator for causing change in volume of the pressure chamber filled with the liquid, is characterized by that: by taking volume of the pressure chamber as V, taking cross-sectional surface area of the nozzle as A, taking a length of the nozzle as l0, taking a density of the liquid to be discharged as ρ, taking viscosity coefficient of the liquid to be discharged as μ, and taking rate of transmission of a pressure wave transmitted through the liquid inside the pressure chamber as c, these respective factors are established in such a manner that a condition expressed by the following inequality expression is satisfied:c2V<16π2·µ2·l0A3·ρ2.
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Birch & Stewart Kolasch & Birch, LLP
Fuji Photo Film Co. , Ltd.
Goldberg Brian J.
Patel Vip
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