A modular inkjet printhead includes: a plurality of printhead modules arranged end on end in a row; an elongate support structure extending a length of the printhead for holding the printhead modules; and an ink carrier extending alongside the support structure and laterally spaced from the printhead modules, the ink carrier being fluidically connected to each of the printhead modules via a plurality of ink connectors extending laterally therefrom; and a pair of elongate busbars extending longitudinally along a roof of the ink carrier, each busbar being electrically connected to each of the printhead modules via a pair of respective connector straps extending transversely therefrom, the busbars supplying power to each of the printhead modules.

A modular inkjet printhead includes a plurality of printhead modules arranged end on end in a row. Each printhead module includes: a substrate having a plurality of parallel ink supply channels extending longitudinally along a length thereof and a plurality of parallel printhead segments. Each printhead segment extends longitudinally along a length of the substrate and has a plurality of print chips arranged end on end in a row. A plurality of fingers extend longitudinally from opposite ends of each printhead module, each finger including a portion of a respective one of the printhead segments. The fingers of neighboring printhead modules are interdigitated such that printhead segments of neighboring printhead modules overlap.

A printhead module includes: an ink manifold defining a plurality of ink supply channels, the ink manifold having first and second opposite faces; a plurality of print chips mounted on the first face, each print chip receiving ink from a respective ink supply channel via a set of ink outlets defined in the first face; first PCBs mounted on the first face of the ink manifold, each print chip being electrically connected to a respective first PCB; and second PCBs mounted on the second face of the ink manifold. The first and second PCBs are connected via electrical connectors extending through longitudinal slots defined in the substrate.

A printhead module includes a monolithic substrate having a plurality of rows of print chips mounted thereon. Each row of print chips receives power and data through a respective longitudinal slot defined through a thickness of the substrate, each longitudinal slot extending parallel with and offset from the rows of print chips.

In some examples, a print cartridge comprises a printhead die that includes a die sliver molded into a molding. The die sliver includes a front surface exposed outside the molding to dispense fluid, and a back surface exposed outside the molding and flush with the molding to receive fluid. Edges of the die sliver contact the molding to form a joint between the die sliver and the molding.

The control section outputs a first output value as an output value which corresponds to the first nozzle group when a first input value is input as an input value which corresponds to the first nozzle group, and outputs a second output value as an output value which corresponds to the second nozzle group when the first input value is input as an input value which corresponds to the second nozzle group, the second output value being larger than the first output value.

A liquid ejecting apparatus includes a first head unit having a first head provided with a plurality of first nozzles and a second head unit having a second head provided with a plurality of second nozzles and a third head provided at a position different from the second head in a first direction and provided with a plurality of third nozzles. The second head and the third head are provided at different positions in a second direction intersecting with the first direction, and the first head unit and the second head unit are disposed such that a width at which the first head and the second head overlap in the first direction is smaller than a width at which the second head and the third head overlap in the first direction.

An object is to provide a liquid ejection apparatus and a method of controlling a liquid ejection apparatus capable of preventing bubbles generated by kogation removal from interfering with the kogation removal. To this end, in a long liquid ejection head with a liquid circulated therethough, a pressure chamber is pressurized and a voltage is applied to a heat applying portion and an electrode to perform kogation removing cleaning.

Provided is a liquid ejecting head including a nozzle surface, a shaft portion, and a housing portion. The nozzle surface has nozzles configured to eject liquid in a first direction. The shaft portion includes a shaft main body extending in the first direction. The housing portion has a through-hole in which the shaft portion is inserted. The first shaft portion has a first external thread and a first internal thread on a first side to which the first direction leads.

A liquid ejecting apparatus includes a liquid ejecting head, a first drive signal, a second drive signal output circuit, a third drive signal output circuit that outputs a third drive signal, having a smaller voltage amplitude than voltage amplitudes of other drive signals, to drive the liquid ejecting head, and a first conductive component including a first conductive section that electrically couples the liquid ejecting head to the first drive signal output circuit, a second conductive section that electrically couples the liquid ejecting head to the second drive signal output circuit, and a third conductive section that electrically couples the liquid ejecting head to the third drive signal output circuit. The first conductive section is positioned between the second conductive section and the third conductive section.