摘要:
A transducer capable of generating vibrational energy is positioned relative to an inkjet cartridge to impart a vibrational force to simultaneously vibrate at least a portion of each of a plurality of ink fluidic columns associated with a plurality of nozzles in a printhead of the inkjet cartridge to maintain or recover nozzle function.
摘要:
A transducer capable of generating vibrational energy is positioned relative to an inkjet cartridge to impart a vibrational force to simultaneously vibrate at least a portion of each of a plurality of ink fluidic columns associated with a plurality of nozzles in a printhead of the inkjet cartridge to maintain or recover nozzle function.
摘要:
The present invention is drawn toward materials, methods and systems for solid free-form fabrication of three dimensional objects. In one embodiment, a method can comprise a) applying a particulate blend in a layer, wherein the particulate blend includes calcium aluminate particulates and polymeric binder particulates; b) dispensing an aqueous polyol-containing liquid vehicle onto a predetermined area of the particulate blend to form hydrated cement in the predetermined area; c) hardening the hydrated cement; and d) repeating steps a) through c) such that multiple layers of the cement are formed that are bound to one another, thereby forming the three dimensional object.
摘要:
A fluid-ejection assembly that includes a substantially-rigid substrate and an ejection head configured to be positioned in a fixed relationship relative to the substantially-rigid substrate. The ejection head is configured to eject a fluid based on an ejection signal received via a conductive pattern defined on the substrate.
摘要:
An inkjet printing system includes a print head in fluid communication with an ink reservoir and having a plurality of orifices and a corresponding plurality of associated ejection chambers. The print head includes a substrate and a barrier layer disposed on the substrate. The barrier layer defines in part a plurality of fluid channels and the plurality of ejection chambers. The barrier layer includes a material selected from epoxy-based photo resist materials and methyl methacrylate-based photo resist materials. An orifice plate is disposed over the substrate. The orifice plate includes the plurality of orifices in fluid communication with the ejection chambers. The orifice plate comprises a material selected from polyimides and nickel.
摘要:
An ink containment system for an inkjet cartridge, for storing ink for printing, comprises a rigid basin member and a rigid moveable plate. A flexible membrane is affixed to a surface of the basin member and to a surface of the plate forming an ink reservoir within the basin member, plate and flexible membrane. A spring-biased mechanism is disposed between the basin member and plate, for biasing the plate apart from the basin member, generating a negative pressure within the ink reservoir and the basin member remaining stationary relative to the movement of the plate. The basin member has a bowl-like configuration and the spring is seated within the reservoir in such a way that when the ink reservoir has collapsed due to depletion of ink, the flexible membrane and moveable plate are substantially flush with surfaces of the basin member.
摘要:
A method for creating a three-dimensional solid freeform fabrication object with non-reactive powder includes spreading a non-reactive powder on a substrate, selectively dispensing a reactive resin onto the non-reactive powder forming a mixture of reactive resin and non-reactive powder, wherein the selective dispensing of the reactive resin defines the three-dimensional object, and curing the reactive resin thereby encapsulating the non-reactive powder.
摘要:
Hot-melt Seal For Nozzles on Print Cartridges And Method. A layer of hot-melt is adhesively bonded to a print cartridge to seal the nozzles through which ink is jetted. In another aspect, a layer of hot-melt seals the electrical contacts and leads mounted on the print cartridge. The hot-melt adhesive can be either laminated with a moisture retardant (preferably impermeable) base film or block coated on moisture retardant (preferably impermeable) pouch material. These materials are thereafter adhesively bonded to the print cartridge, sealing the nozzles and preferably the electrical contacts and leads as well.In one application process, a hot-melt moisture retardant laminate tape is cut to size, releasably captured, positioned over the nozzles, and heat staked to seal the nozzles of the print cartridge. In a second application process, a layer of hot-melt is directly applied over the nozzles and a layer of moisture retardant material is heat staked to the hot-melt. In a third application process, heat stakable pouch material is block coated with hot-melt, the block coated hot-melt is positioned over the nozzles and heat staked, and the print cartridge is thereafter flow wrapped. In a fourth application process a hot-melt, moisture retardant tape is cut to size and heat staked to seal the nozzles of a print cartridge. Thereafter a free-end of the tape is heat staked into a pouch material and then the print cartridge is flow wrapped with the pouch material.
摘要:
A self-aligned interconnect significantly reduces manufacturing costs and provides important advantages in a number of specific applications begins with a single crystal substrate. The substrate is machined to accept microelectronic chips at various locations (openings) along the substrate. Corresponding chips are constructed to precisely fit the openings in the crystal substrate. To ensure precision fit, both the substrate and the chip are etched along the same crystal plane. As a result, the chips can be placed in the openings in the substrate with perfect or nearly perfect alignment in the x and y directions without expensive alignment tools. In effect, the chips and the substrate are self aligned.
摘要:
A flexible circuit is staked to an ink-jet pen body to resist peeling from the body and to provide a flat surface to which mechanisms for enclosing the pen nozzles can be sealed. Also disclosed is a staking apparatus and method for ensuring flatness and uniform bonding of the staked circuit.