Abstract: Ink-jet printer and method for supplying ink-jet printer with printing fluid. Device includes first reservoir configured to contain first volume of printing fluid at first level relative to reference plane, supply system structured to force printing fluid towards first reservoir, and second reservoir configured to contain second volume of printing fluid at second level relative to reference plane. Second level is lower than first level by level difference value. A conduit is configured to receive printing fluid from first reservoir and convey printing fluid towards second reservoir, and ejector units are arranged to receive printing fluid from conduit. An ejection plane in which ejector units lie is located at a height relative to reference plane higher than average of first and second levels to generate a back pressure in ejector units. Flowrate of printing fluid inside conduit is greater than a maximum flowrate of printing fluid ejectable from ejector units.

Abstract: The present invention relates to a protection device for ink-jet printheads, comprising: a tank confining a cavity adapted to contain a humidifying liquid and having a mouth designed to be associated with at least one nozzle of an ink-jet printhead; a seal disposed around the mouth and suitable to be put sealingly in engagement against the printhead and around the nozzle; a mechanism integrated into the tank, for opening or closing the mouth for selectively bringing the mouth into fluid communication with the cavity.

Abstract: Ink-jet printer and method for supplying ink-jet printer with printing fluid. Device includes first reservoir configured to contain first volume of printing fluid at first level relative to reference plane, supply system structured to force printing fluid towards first reservoir, and second reservoir configured to contain second volume of printing fluid at second level relative to reference plane. Second level is lower than first level by level difference value. A conduit is configured to receive printing fluid from first reservoir and convey printing fluid towards second reservoir, and ejector units are arranged to receive printing fluid from conduit. An ejection plane in which ejector units lie is located at a height relative to reference plane higher than average of first and second levels to generate a back pressure in ejector units. Flowrate of printing fluid inside conduit is greater than a maximum flowrate of printing fluid ejectable from ejector units.

Abstract: An ink-jet printing device is described, said device comprising a first reservoir designed to contain a first volume of printing fluid at a first height with respect to a reference plane, a supply system for forcing the printing fluid towards the first reservoir and a second reservoir designed to contain a second volume of printing fluid at a second height with respect to the reference plane. The second height is less than the first height by a value. The device also comprises a conduit designed to receive the printing fluid from the first reservoir and convey it towards the second reservoir and an ejection plane in which ejector units lie. The ejection plane is arranged in a position higher than the average of the first height and the second height, so as to generate a back pressure in the ejector units. The flowrate of the printing fluid is between about 5 and about 10 times the maximum flowrate which can be ejected from said ejector units. The printing fluid may be a ceramic ink.

Abstract: An inkjet printhead, in particular for sewing/embroidering machines, includes a support structure; a plurality of firing cells included in the support structure, each firing cell being adapted to eject ink through a respective nozzle for coloring a thread to be used in a sewing/embroidering machine; a guide element, provided on the support structure, for guiding the thread in a position facing said nozzles. Also disclosed are a sewing/embroidering machine including the printhead and a method for making the printhead.

Abstract: An ink-jet printing device is described, said device comprising a first reservoir designed to contain a first volume of printing fluid at a first height with respect to a reference plane, a supply system for forcing the printing fluid towards the first reservoir and a second reservoir designed to contain a second volume of printing fluid at a second height with respect to the reference plane. The second height is less than the first height by a value. The device also comprises a conduit designed to receive the printing fluid from the first reservoir and convey it towards the second reservoir and an ejection plane in which ejector units lie. The ejection plane is arranged in a position higher than the average of the first height and the second height, so as to generate a back pressure in the ejector units. The flowrate of the printing fluid is between about 5 and about 10 times the maximum flowrate which can be ejected from said ejector units. The printing fluid may be a ceramic ink.

Abstract: The present invention relates to a protection device for ink-jet printheads, comprising: a tank confining a cavity adapted to contain a humidifying liquid and having a mouth designed to be associated with at least one nozzle of an ink-jet printhead; a seal disposed around the mouth and suitable to be put sealingly in engagement against the printhead and around the nozzle; a mechanism integrated into the tank, for opening or closing the mouth for selectively bringing the mouth into fluid communication with the cavity.

Abstract: An inkjet printhead, in particular for sewing/embroidering machines, includes a support structure; a plurality of firing cells included in the support structure, each firing cell being adapted to eject ink through a respective nozzle for coloring a thread to be used in a sewing/embroidering machine; a guide element, provided on the support structure, for guiding the thread in a position facing said nozzles. Also disclosed are a sewing/embroidering machine including the printhead and a method for making the printhead.

Abstract: A Multi-color ink-jet print cartridge includes an integrally shaped one-piece body with a reservoir portion including at least two ink chambers, and a manifold portion including at least two ink conduits, each ink conduit hydraulically connected to a corresponding one of the ink chambers through a port. An ink-jet printhead, includes at least two nozzle arrays, each of which arrays is hydraulically connected to a corresponding one of the ink conduits. A lid covers the reservoir portion of the body. Each of the ink conduits includes a channel portion in side to side relationship with the corresponding channel portion of the adjacent ink conduit. The channel portions have adjacent openings on one external wall of the body. Separate independent plugs are sealingly inserted into the adjacent openings.

Abstract: A nozzle shield assembly includes a band of material having a tag end, a standing end, a first side, and a second side; wherein the second side is at least partially folded against itself, and the standing end is configured to cover a nozzle of a print cartridge.

Abstract: A Multi-color ink-jet print cartridge includes an integrally shaped one-piece body with a reservoir portion including at least two ink chambers, and a manifold portion including at least two ink conduits, each ink conduit hydraulically connected to a corresponding one of the ink chambers through a port. An ink-jet printhead, includes at least two nozzle arrays, each of which arrays is hydraulically connected to a corresponding one of the ink conduits. A lid covers the reservoir portion of the body. Each of the ink conduits includes a channel portion in side to side relationship with the corresponding channel portion of the adjacent ink conduit. The channel portions have adjacent openings on one external wall of the body. Separate independent plugs are sealingly inserted into the adjacent openings.

Abstract: A nozzle shield assembly includes a band of material having a tag end, a standing end, a first side, and a second side; wherein the second side is at least partially folded against itself, and the standing end is configured to cover a nozzle of a print cartridge.