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US 12,686,209 B2Granted
Full color inkjet printhead for redundant printing
AssigneeMemjet Technology Limited
InventorsJason Thelander, David Burke, Andrew Thomas
Life of this patent
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Abstract
An inkjet printhead for printing redundantly in four colors. The printhead includes: an ink manifold having first, second, third and fourth ink reservoirs for supplying first, second, third and fourth inks, respectively; and first and second parallel printhead chips mounted on the ink manifold. The ink manifold has ink feed slots configured for supplying the first and second inks to the first printhead chip and for supplying the third and fourth inks to the second printhead chip.
Claims9
An inkjet printhead for printing redundantly in four colors, said printhead comprising:
- an ink manifold having first, second, third and fourth ink reservoirs for supplying first, second, third and fourth inks, respectively;
- and
- first and second parallel and laterally aligned printhead chips mounted on the ink manifold,
- wherein the ink manifold comprises:
- a first longitudinal ink feed slot configured for feeding the first ink from the first ink reservoir to first and second nozzle rows in the first printhead chip;
- a second longitudinal ink feed slot configured for feeding the second ink from the second ink reservoir to third and fourth nozzle rows in the first printhead chip;
- a third longitudinal ink feed slot configured for feeding the third ink from the third ink reservoir to first and second nozzle rows in the second printhead chip;
- and
- a fourth longitudinal ink feed slot configured for feeding the fourth ink from the fourth ink reservoir to third and fourth nozzle rows in the second printhead chip, and wherein:
- the first, second, third and fourth nozzle rows of the first and second printhead chips are all aligned with each other for printing onto a same dot position on a page;
- the first and second printhead chips are oppositely oriented relative to each other;
- the first and second printhead chips each has a row of bond pads extending along only one longitudinal edge thereof and parallel with the nozzle rows;
- the rows of bond pads are positioned at opposite distal longitudinal edges of the oppositely oriented first and second printhead chips for electrical connection thereto.
10 more elements
Dependencies are inferred from the claim text.