Inkjet printing apparatus with ink manifold

An inkjet printing system, comprising:

• a housing;
• a mounting assembly;
• a media transport assembly;
• a controller;
• an ink reservoir;
• and
• an inkjet pen;
• wherein the inkjet pen is positioned at the mounting assembly and includes a plurality of printing elements;
• a print zone occurring adjacent to the plurality of printing elements along a media path;
• the media transport assembly moving a media sheet along the media path into the print zone;
• the controller determining a timing pattern for ejecting ink from the plurality of printing elements onto the media sheet;
• the mounting assembly, media transport assembly, and controller located within the housing;
• wherein the inkjet pen comprises:
• a manifold frame having an inlet, a first channel and a plurality of exit channels which together form a manifold, ink flowing from the reservoir into the manifold at the inlet, and from the inlet through the first channel to the plurality of exit channels;
• a carrier substrate distinct from the manifold frame and having a plurality of through channels, each one through channel coupled to receive ink from a corresponding one of the plurality of manifold exit channels;
• and
• a plurality of printhead dies mounted to the carrier substrate, each printhead die comprising an array of printing elements and an ink refill slot, each ink refill slot receiving ink from the reservoir by way of the ink manifold and a corresponding substrate through channel,
• wherein each one printing element of the array of printing elements comprises a nozzle chamber and a feed channel, the feed channel being coupled to the ink refill slot of the printhead die.

A method for loading an inkjet pen having an internal reservoir, a manifold, a carrier substrate and a plurality of printhead dies, the manifold formed by an inlet, a first channel and plurality of exit channels, the carrier substrate distinct from the manifold and having a plurality of through channels corresponding to the plurality of exit channels, each printhead die mounted to the carrier substrate, each printhead die having an ink refill slot in communication with a corresponding plurality of inkjet nozzle chambers, the method comprising the steps of:

• replacing the reservoir;
• and
• flowing ink from the reservoir into the manifold inlet;
• flowing ink from the inlet through the first channel and out the plurality of exit channels to the corresponding plurality of through channels;
• and
• flowing ink from the plurality of through channels to the plurality of printhead dies at the ink refill slot of each printhead die and into the plurality of nozzle chambers corresponding to the ink refill slot.

An inkjet pen, comprising:

• a pen body having an ink reservoir;
• an ink manifold having an inlet, a first channel and a plurality of exit channels, wherein ink flows from the reservoir into the inlet, then through the first channel to exit the manifold at the plurality of exit channels;
• a plurality of printhead dies, each printhead die comprising an array of printing elements and an ink refill slot which receives ink from the reservoir through the ink manifold;
• and
• a multilayered substrate having a plurality of electrical interconnection pathways in electrical communication with the plurality of printhead dies, the pathways formed in part within a plurality of intermediary layers of the substrate, wherein one or more printhead control signals couple to the plurality of printhead dies using the plurality of electrical interconnection pathways.

An inkjet printing system, comprising:

• a housing;
• a mounting assembly;
• a media transport assembly;
• a controller;
• an ink reservoir;
• and
• an inkjet pen;
• wherein the inkjet pen is positioned at the mounting assembly and includes a plurality of printing elements;
• a print zone occurring adjacent to the plurality of printing elements along a media path;
• the media transport assembly moving a media sheet along the media path into the print zone;
• the controller determining a timing pattern for ejecting ink from the plurality of printing elements onto the media sheet;
• the mounting assembly, media transport assembly, and controller located within the housing;
• wherein the inkjet pen comprises:
• an ink manifold having an inlet, a first channel and a plurality of exit channels, wherein ink flows from the reservoir into the inlet, then through the first channel to exit the manifold at the plurality of exit channels;
• a plurality of printhead dies, each printhead die comprising an array of printing elements and an ink refill slot which receives ink from the reservoir through the ink manifold;
• and
• a multilayered substrate having a plurality of electrical interconnection pathways in electrical communication with the plurality of printhead dies, the pathways formed in part within a plurality of intermediary layers of the substrate, wherein one or more printhead control signals couple to the plurality of printhead dies using the plurality of electrical interconnection pathways.

An inkjet assembly, comprising:

• a first reservoir storing ink of a first color;
• a second reservoir storing ink of a second color different from the first color;
• and
• an inkjet pen comprising a manifold frame, a carrier substrate distinct from the manifold frame and a plurality of printhead dies mounted to the carrier substrate;
• the manifold frame forming a first manifold communicating with the first reservoir and a second manifold communicating with the second reservoir, the first and second manifolds not inter-communicating;
• the carrier substrate having a plurality of through channels, each one through channel coupled to receive ink from a corresponding one of the first manifold and second manifold;
• each one die of the plurality of printhead dies comprising an array of printing elements and an ink refill slot, each one printing element of the array comprising a nozzle chamber and a feed channel, the feed channel coupled to receive ink from the ink refill slot of the corresponding printhead die, each ink refill slot receiving ink from a corresponding substrate through channel.