Multilayered platform for multiple printhead dies

An inkjet printhead assembly, comprising:

• a multilayered platform including first and second outer layers and at least first and second inner layers disposed between the first and second outer layers, the multilayered platform having an ink inlet formed in the first outer layer thereof, a plurality of ink feed slots formed in the second outer layer thereof, and an ink manifold formed in the at least first and second inner layers thereof, the ink manifold fluidically coupling the ink inlet of the first outer layer with the ink feed slots of the second outer layer and being formed by overlapping slots defined in the at least first and second inner layers;
• and
• a plurality of printhead dies each mounted on the second outer layer of the multilayered platform and communicating with at least one of the ink feed slots in the second outer layer of the multilayered platform,
• wherein a first of the ink feed slots of the second outer layer of the multilayered platform communicates with a first of the printhead dies and a second of the ink feed slots of the second outer layer of the multilayered platform communicates with a second of the printhead dies.

A method of forming an inkjet printhead assembly, the method comprising the steps of:

• forming a first outer layer with an ink inlet therethrough;
• forming a second outer layer with a plurality of ink feed slots therethrough;
• forming at least first and second inner layers with an ink manifold therein, including overlapping slots defined in each of the at least first and second inner layers to form the ink manifold;
• interposing the at least first and second inner layers between the first outer layer and the second outer layer to form a multilayered platform, including fluidically coupling the ink inlet of the first outer layer with the plurality of ink feed slots of the second outer layer via the ink manifold of the at least first and second inner layers;
• and
• mounting a plurality of printhead dies on the second outer layer of the multilayered platform, including communicating a first of the printhead dies with a first of the ink feed slots of the second outer layer and communicating a second of the printhead dies with a second of the ink feed slots of the second outer layer.

A method of supplying ink to a plurality of nozzle chambers of an inkjet pen including a reservoir holding a supply of the ink, a multilayered platform having at least one intermediary layer interposed between first and second outer layers, and a plurality of printhead dies each mounted on the multilayered platform and communicating with the reservoir via the multilayered platform, the method comprising the steps of:

• communicating an ink inlet of the first outer layer with the reservoir;
• supplying an ink manifold formed in the at least one intermediary layer with a quantity of the ink from the reservoir via the ink inlet;
• distributing the quantity of the ink to a plurality of ink feed slots formed in the second outer layer via the ink manifold;
• supplying an ink refill slot of each of the printhead dies with a portion of the quantity of the ink via the ink feed slots, including supplying the ink refill slot of a first of the printhead dies with a first portion of the ink via a first of the ink feed slots and supplying the ink refill slot of a second of the printhead dies with a second portion of the ink via a second of the ink feed slots;
• and
• distributing the quantity of the ink to the nozzle chambers of an array of printing elements of the printhead dies.

An inkjet printhead assembly, comprising:

• a multilayered platform including a first layer having an ink inlet defined therein, a second layer having a plurality of ink feed slots defined therein, and at least one intermediary layer having an ink manifold defined therein, the at least one intermediary layer interposed between the first layer and the second layer and the ink manifold of the at least one intermediary layer fluidically coupling the ink inlet of the first layer with the ink feed slots of the second layer;
• and
• a plurality of multilayered printhead dies each mounted on the second layer of the multilayered platform and communicating with at least one of the ink feed slots of the second layer, each of the multilayered printhead dies including an orifice layer having a plurality of nozzles defined therein and a layer having an ink refill slot defined therein, each of the nozzles communicating with the ink refill slot and the ink refill slot communicating with the at least one of the ink feed slots of the second layer,
• wherein a first of the ink feed slots of the second layer of the multilayered platform communicates with a first of the multilayered printhead dies and a second of the ink feed slots of the second layer of the multilayered platform communicates with a second of the multilayered printhead dies.