Abstract:
A fluid dispenser may include an array of fluid delivery assemblies. Each fluid delivery assembly may include orifices through which fluid is to be ejected and slots. Each slot extends to a respective one of the orifices. The slots have different geometric shapes.
Abstract:
In an embodiment, a fluid ejection device includes a substrate with a fluid slot formed therein, a chamber layer formed on the substrate defining fluid chambers on both sides of the fluid slot, a thin-film layer between the substrate and chamber layer that defines an ink feedhole (IFH) between the fluid slot and the chamber layer, and a chamber layer extension that forms a bridge across the IFH between two chambers.
Abstract:
In an embodiment, a fluid ejection device includes a substrate with a fluid slot formed therein, a chamber layer formed on the substrate defining fluid chambers on both sides of the fluid slot, a thin-film layer between the substrate and chamber layer that defines an ink feedhole (IFH) between the fluid slot and the chamber layer, and a chamber layer extension that forms a bridge across the IFH between two chambers.
Abstract:
A fluid dispenser may include an array of fluid delivery assemblies, Each fluid delivery assembly may include orifices through which fluid is to be ejected and slots. Each slot extends to a respective one of the orifices. The slots have different geometric shapes.
Abstract:
Controlling adhesives between substrates and carriers includes forming a depression into a bonding area of a backside surface of a substrate of a print head where the bonding area being formed proximate an ink feed slot formed through the thickness of the substrate from the backside surface to a front side surface; placing an adhesive between the bonding area and a substrate carrier, and moving the substrate and the substrate carrier together such that the adhesive flows into the depression.
Abstract:
In an embodiment, a fluid ejection device includes a substrate with a fluid slot formed therein, a chamber layer formed on the substrate defining fluid chambers on both sides of the fluid slot, a thin-film layer between the substrate and chamber layer that defines an ink feedhole (IFH) between the fluid slot and the chamber layer, and a chamber layer extension that forms a bridge across the IFH between two chambers.
Abstract:
Fluid ejection devices with particle tolerant thin-film extensions are disclosed. An example apparatus includes a printer; a reservoir; and a printhead including: a firing chamber; a channel to receive fluid from the reservoir, the channel is coupled to the firing chamber, the channel having an opening; and a particle-tolerant film disposed adjacent the opening of the channel, the particle-tolerant film disposed between the channel and the reservoir, the particle-tolerant film to deter particles within the fluid from settling in an area adjacent the opening.
Abstract:
A fluid dispenser is disclosed herein. An example of such a fluid dispenser includes a member configured to define a plurality of orifices through which a fluid is ejected and a manifold including a plurality of fluid passageways each of which is configured to have a different angle relative to the member. This example of a fluid dispenser additionally includes a plurality of slots each of which is coupled to a different one of the fluid passageways of the manifold to conduct the fluid from the fluid passageways towards the orifices. Additional features and modifications of this fluid dispenser are disclosed herein, as are other examples of fluid dispensers.
Abstract:
In one example implementation, a printhead die includes a SiO2 layer grown into a surface of a silicon substrate, a dielectric layer formed on the surface over an interior area of the substrate, a first termination ring surrounding the interior area and defined by an absence of the dielectric layer, a berm surrounding the first termination ring and defined by the presence of the dielectric layer, a damage detection conductor formed under the berm on the SiO2 layer, and a second termination ring surrounding the berm and defined by an absence of the dielectric layer.
Abstract:
In some examples, a printhead can include a main printer fluid line, a firing chamber in fluid communication with the main printer fluid line to receive printer fluid from the main printer fluid line, and a resistor positioned in the firing chamber. The resistor can, for example, receive an electronic current to cause the resistor to heat up and eject printer fluid droplets from the printhead. The printhead can further include a photolithographically fabricated check valve positioned in the firing chamber. The check valve can, for example, be openable to allow filling of the firing chamber with printer fluid and closeable to at least partially seal the main printer fluid line from printer fluid blowback caused by the resistor.