摘要:
A printhead die is provided that includes a substrate and a slot extending through the substrate, the slot including a first slot segment and a discrete second slot segment, the second slot segment being offset from the first slot segment along a major axis and along an orthogonal minor axis.
摘要:
An assembly includes an election chamber, an ejection member, and a capacitance detection unit. The ejection chamber holds a fluid. The ejection member is disposed in the ejection chamber to selectively receive a predetermined amount of power from a power supply line. The capacitance detection unit detects art amount of capacitance.
摘要:
A fluid ejection device includes one or more digital data storage arrays having plural EPROM cells. A method for affirming performance adequacy of EPROM cells in the one or more arrays includes the steps of identifying a reference cell in each array, measuring a selected performance criterion for the reference cells, obtaining a reference criterion value, and evaluating the actual performance of at least one cell in each array with respect to the reference criterion value.
摘要:
A fluid ejection device includes a plurality of firing cells, a clocked latch switch, and a data latch switch. Each firing cell includes a heater used to fire ink through a nozzle, a drive switch, and a memory cell used to store a control value used to control the drive switch. The memory cell includes a data switch. A clocked latch switch receives a data-in signal and latches the data-in signal. All of the firing cells in the plurality of firing cells use the data-in signal latched by the clocked latch switch. The data latch switch latches the data-in signal to the data switch of at least two, but not all of the firing cells in the plurality of firing cells.
摘要:
A fluid-ejection device includes a handheld and/or mountable enclosure, a pneumatic fitting, an electrical connector, and a controller. The pneumatic fitting extends from and/or through the enclosure and is receptive to placement of a tip thereon. The tip contains a supply of fluid, a fluid-ejection mechanism, and an electrical connector for the fluid-ejection mechanism. The electrical connector extends from and/or through the enclosure and is receptive to electrical coupling of the electrical connector of the tip. The controller is situated within the enclosure to cause the tip to eject the fluid via the electrical coupling of the electrical connectors of the tip and the fluid-ejection device.
摘要:
An integrated fluid cartridge (100) for securing onboard memory (150, 215) includes an electrically actuated dispensing mechanism (120, 205) with a number of droplet generators which are fluidically connected to a fluid reservoir (110); a memory module (150, 215); and an electrical interface (200) containing shared select lines (250) and data lines (255) configured to control both the dispensing mechanism (120, 205) and the memory module (150, 215). A method for secure communications between a precision-dispensing device and integrated fluid cartridge (100) includes connecting the precision-dispensing device and the cartridge (100) via an electrical interface (200) containing select lines (250) and data lines (255); the cartridge (100) having several electronic components which are controlled via the select (250) and data lines (255).
摘要:
A fluid ejection device includes one or more digital data storage arrays having plural EPROM cells. A method for affirming performance adequacy of EPROM cells in the one or more arrays includes the steps of identifying a reference cell in each array, measuring a selected performance criterion for the reference cells, obtaining a reference criterion value, and evaluating the actual performance of at least one cell in each array with respect to the reference criterion value.
摘要:
A tip to be placed on a fluid-ejection device is filled with fluid. The fluid may be introduced into a substantially hollow body of the tip at a first end of the body. The body of the tip has a second end at which a fluid-ejection mechanism is disposed to eject the fluid as controlled by the fluid-ejection device. The fluid may be introduced into the substantially hollow body of the tip through of the fluid-ejection mechanism disposed at the second end of the body of the tip. The tip may further be identified and/or serviced, and the tip and/or the fluid-ejection device may further be validated.
摘要:
Devices, methodologies, and other embodiments associated with fluid ejection devices are described. One exemplary embodiment includes a fluid ejection device that comprises a plurality of firing cells configured to eject fluid when activated. The firing cells can be grouped into firing groups of firing cells including a first fire group and a second fire group. A circuit can be provided that is configured to activate selected firing cells where the circuit is configured to respond to activation signals including a first fire pulse to activate the firing cells of the first fire group and a second fire pulse to activate the firing cells of the second fire group. The circuit can also be configured to activate the first fire group and the second fire group to eject fluid overlapping in time.
摘要:
A controller is provided for an inkjet airbrush system which uses inkjet printing technology for color mixing in airbrush painting, and for other fluid application systems. The controller is used to select a desired fluid blend or custom color which is blown by the inkjet airbrush onto an object. Firing signals, generated in response to the controller input, cause a printhead to eject a custom blend of colors which are combined in a mixing chamber and then atomized. The controller may be a remote device, or provided on-board the inkjet airbrush unit, preferably, as a joystick toggling device. The amount of colorant passing through the airbrush may be varied by varying the firing signal frequency in response to joystick motion or a separate adjustment mechanism. The inkjet airbrush system provides fast color changes and faster clean-up than conventional airbrushes. A method of controlling an inkjet airbrush is also provided.