Patent ID: 7128397
Filing Date: 2006-10-31
Classification: B41J,B82Y,G06F,G06K,G11C,H04N

Abstract:
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.