Ink-jet assembly coatings and related methods
First Claim
1. A liquid jetting assembly for an ink-jet printer, comprising:
- (a) an ink delivery channel communicable with an ink-jet supply;
(b) an orifice plate having an outer surface, said orifice plate defining at least a portion of the channel; and
(c) a continuous hydrophobic coating;
i) applied to at least a portion of the outer surface immediately surrounding the channel, ii) extending at least partially into the channel, and iii) terminating within the channel.
1 Assignment
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Accused Products
Abstract
A method for coating select portions of a liquid jetting assembly with a hydrophobic coating comprises the steps of establishing a first pressure inside of an ink chamber of the jetting assembly; establishing a second pressure outside of the ink chamber of the jetting assembly, the inside and the outside being fluidly communicable with one another by an ink delivery channel; and introducing a composition capable of forming a hydrophobic coating outside of the ink chamber. The second pressure can facilitate formation of the hydrophobic coating on an outer surface of the liquid jetting assembly, and the first pressure can restrict the hydrophobic coating from being formed within the ink chamber.
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Citations
24 Claims
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1. A liquid jetting assembly for an ink-jet printer, comprising:
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(a) an ink delivery channel communicable with an ink-jet supply;
(b) an orifice plate having an outer surface, said orifice plate defining at least a portion of the channel; and
(c) a continuous hydrophobic coating;
i) applied to at least a portion of the outer surface immediately surrounding the channel, ii) extending at least partially into the channel, and iii) terminating within the channel. - View Dependent Claims (2, 3, 4, 5)
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6. A method for coating select portions of a liquid jetting assembly with a hydrophobic coating, comprising the steps of:
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(a) establishing a first pressure inside of an ink chamber of the jetting assembly;
(b) establishing a second pressure outside of the ink chamber of the jetting assembly, the inside and the outside being fluidly communicable with one another by an ink delivery channel; and
(c) introducing a composition capable of forming a hydrophobic coating outside of the ink chamber, wherein the second pressure facilitates formation of the hydrophobic coating on an outer surface of the liquid jetting assembly, and wherein the first pressure restricts the hydrophobic coating from being formed within the ink chamber. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for coating select portions of a liquid jetting assembly with a hydrophobic coating, comprising the steps of:
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(a) introducing a composition capable of forming a hydrophobic coating outside of an ink chamber of the liquid jetting assembly to facilitate formation of the hydrophobic coating on at least a portion of an outer surface of the liquid jetting assembly;
(b) creating fluid flow from inside the ink chamber, through an ink delivery channel, and to the outside of the ink chamber to restrict the hydrophobic coating from being formed inside the ink chamber. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
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24. A liquid jetting assembly for an ink-jet printer, comprising:
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(a) an ink delivery channel communicable with an ink-jet supply;
(b) an orifice plate having an outer surface, said orifice plate defining at least a portion of the channel;
(c) means for jetting an ink-jet ink from the ink-jet supply through the channel; and
(d) means for substantially preventing the ink-jet ink from wetting a portion of the ink delivery channel and the outer surface immediately adjacent the portion of the ink delivery channel.
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Specification