Method and device for the hydrodynamic deflection of an ink jet
AssigneeDover Europe SàRl
InventorBruno Barbet
Life of this patent
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Abstract
The invention firstly relates to a print head of a continuous ink jet printer, comprising a first reservoir (12) and a second reservoir (22), arranged on either side of least one jet ejection nozzle (30, 301-30n) to which they are connected, and a first actuator (16, 161-16n) for applying a 1st pressure to the ink of the, or coming from the, 1st reservoir, and a second actuator (26, 261-26n) for applying a 2nd pressure to the ink of the, or coming from the, 2nd reservoir, and a controller for controlling these first and second actuators, said controller being programmed to apply a variable difference between these 2 pressures.
Claims20
Print head of a continuous ink jet printer, comprising:
- a first reservoir and a second reservoir, arranged on either side of at least one jet ejection nozzle to which they are connected;
- a first actuator for applying pressure to the ink from the, or coming from the, 1st reservoir;
- a second actuator for applying pressure to the ink of the, or coming from the, 2nd reservoir;
- and
- a controller for controlling the first actuator and the second actuator,
- wherein said controller is configured to control the first actuator and the second actuator to simultaneously and respectively apply first and second pressures to the ink of the, or coming from the, first and second reservoirs, such that a first jet of ink is ejected from the nozzle along a first trajectory, and
- wherein the first and second pressures have a non-zero pressure differential.
Method for operating a print head of a continuous ink jet printer, comprising a first reservoir and a second reservoir, arranged on either side of a jet ejection nozzle, to which each of the reservoirs is connected, method in which:
- first and second pressures are respectively and simultaneously applied to the ink of the, or coming from the, first and second reservoirs, such that a first jet of ink is ejected from the nozzle at a first trajectory,
- wherein the first and second pressures have a non-zero pressure differential.
Dependencies are inferred from the claim text.