Ink distribution assembly for page width ink jet printhead
First Claim
1. An ink distribution assembly for a page width ink jet printhead in the form of at least one printhead integrated circuit having sets of ink inlet openings, each set having at least one inlet opening for receiving an ink of a particular colour to be supplied to the printhead integrated circuit, the assembly comprising:
- an elongate carrier having an ink supply side and an opposed printhead side engageable with the printhead, the ink supply side defining a number of discrete feed formations, each feed formation being configured to receive ink of a particular colour and to be in fluid communication with the, or each, inlet opening of the printhead of a respective set, via feed openings through the carrier, the printhead side defining at least one ink supply channel, and the carrier defining at least one passage in fluid communication between the, or each, ink supply channel and at least one of the feed formations;
an elongate cover engaged with the carrier at the ink supply side, the cover and the ink supply side being shaped so that the cover serves to define a roof for the feed formations and so that the cover and the ink supply side define ink pathways that are in fluid communication with respective feed formations, one of the carrier and the cover defining ink supply openings in fluid communication with respective ink pathways; and
at least one cover plate engaged with the carrier at the printhead side so as to define a roof for the at least one ink supply channel.
3 Assignments
0 Petitions
Accused Products
Abstract
An ink distribution assembly for a page width ink jet printhead integrated circuit having sets of ink inlet openings for receiving particular color ink is provided. The assembly includes a carrier having opposed ink supply and printhead sides which defines feed openings in fluid communication with the inlet openings of the integrated circuit. The supply side defines discrete feed formations in fluid communication with the inlet openings for receiving particular color ink. The printhead side defines supply channels in fluid communication with the feed formations via passages defined by the carrier. A cover is engaged at the supply side and is shaped with the supply side so as to define a roof for, and pathways in fluid communication with, the feed formations. The carrier defines supply openings in fluid communication with the pathways and includes cover plates engaged at the printhead side to define roofs for the supply channels.
23 Citations
12 Claims
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1. An ink distribution assembly for a page width ink jet printhead in the form of at least one printhead integrated circuit having sets of ink inlet openings, each set having at least one inlet opening for receiving an ink of a particular colour to be supplied to the printhead integrated circuit, the assembly comprising:
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an elongate carrier having an ink supply side and an opposed printhead side engageable with the printhead, the ink supply side defining a number of discrete feed formations, each feed formation being configured to receive ink of a particular colour and to be in fluid communication with the, or each, inlet opening of the printhead of a respective set, via feed openings through the carrier, the printhead side defining at least one ink supply channel, and the carrier defining at least one passage in fluid communication between the, or each, ink supply channel and at least one of the feed formations; an elongate cover engaged with the carrier at the ink supply side, the cover and the ink supply side being shaped so that the cover serves to define a roof for the feed formations and so that the cover and the ink supply side define ink pathways that are in fluid communication with respective feed formations, one of the carrier and the cover defining ink supply openings in fluid communication with respective ink pathways; and at least one cover plate engaged with the carrier at the printhead side so as to define a roof for the at least one ink supply channel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification