Ink delivery method for an inkjet print cartridge
First Claim
1. A method for printing comprising the steps of:
- supplying ink from an ink source around one or more outer edges of a substrate'"'"'s periphery and to a top surface of said substrate to allow ink, which has flowed around said one or more outer edges, to enter ink ejection chambers each essentially surrounding an ink election element formed overlying said substrate; and
energizing said ink ejection element to eject a portion of ink in an associated one of said ink ejection chambers and expelling ink from an orifice.
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Accused Products
Abstract
This invention provides an improved ink flow path between an ink reservoir and vaporization chambers in an inkjet printhead. In the preferred embodiment, a barrier layer containing ink channels and vaporization chambers is located between a rectangular substrate and a nozzle member containing an array of orifices. The substrate contains two linear arrays of heater elements, and each orifice in the nozzle member is associated with a vaporization chamber and heater element. The ink channels in the barrier layer have ink entrances generally running along two opposite edges of the substrate so that ink flowing around the edges of the substrate gain access to the ink channels and to the vaporization chambers.
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Citations
26 Claims
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1. A method for printing comprising the steps of:
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supplying ink from an ink source around one or more outer edges of a substrate'"'"'s periphery and to a top surface of said substrate to allow ink, which has flowed around said one or more outer edges, to enter ink ejection chambers each essentially surrounding an ink election element formed overlying said substrate; and energizing said ink ejection element to eject a portion of ink in an associated one of said ink ejection chambers and expelling ink from an orifice. - View Dependent Claims (2, 15, 16, 17, 18)
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3. A method for supplying ink to a printhead in a print cartridge, said print cartridge including a body for containing ink, said method comprising the steps of:
supplying ink to said body; feeding said ink supplied to said body around one or more outer edges of a substrate'"'"'s periphery and to a top surface of said substrate to allow ink, which has flowed around said one or more outer edges, to enter ink ejection chambers, each ink ejection chamber substantially surrounding an ink ejection element formed overlying said top surface of said substrate. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 19, 20, 21, 22)
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11. A method for supplying ink to a printhead in a print cartridge, said print cartridge including a body for containing ink, said method comprising the step of:
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supplying ink to said body, said body containing an ink reservoir, said printhead comprising; a substrate having a top surface and an opposing bottom surface, and having a first outer edge along a periphery of said substrate; a nozzle member having a plurality of ink orifices formed therein, said nozzle member being positioned to overlie said top surface of said substrate; a plurality of ink ejection elements formed on said top surface of said substrate, each of said ink ejection elements being located proximate to an associated one of said orifices for ejecting a portion of ink and expelling said ink from said associated orifice; and a fluid channel, communicating with said ink reservoir, leading to each of said orifices and said ink ejection elements, said fluid channel allowing ink to flow from said ink reservoir, around said first outer edge of said substrate, and to said top surface of said substrate so as to be proximate to said orifices and said heating means. - View Dependent Claims (12, 13, 14, 23, 24, 25, 26)
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Specification