Abstract: An inkjet printhead includes: a rigid elongate manifold having ink supply channels extending along its length and a plurality of ink outlets defined therein; a shim attached to the manifold, the shim having a plurality of shim apertures for receiving ink from the ink outlets; and a plurality of printhead chips adhesively bonded directly to the shim, each printhead chip receiving ink from one or more of the ink outlets. The the shim is formed of a metal alloy having a CTE of 5 ppm/° C. or less.

Abstract: A method of forming an inkjet printhead. The method includes the steps of: providing a metal alloy shim having a plurality of shim apertures; nitriding a surface of the shim; bonding the shim to a rigid elongate manifold having ink supply channels, such that each shim aperture is in fluid communication with a respective ink supply channel; and bonding printhead chips to the shim, thereby forming the inkjet printhead.

Abstract: An inkjet printhead includes: a manifold having a plurality of ink outlets defined in a manifold surface; a shim adhesively bonded to the manifold surface, the shim having apertures aligned with the ink outlets; at least one row of printhead chips adhesively bonded to the shim. The shim and the manifold are each comprised of an Invar metal alloy.

Abstract: An inkjet printhead includes: a manifold having a plurality of ink outlets defined in a manifold surface; a plurality of printhead chips mounted to the manifold surface, each printhead chip having an odd number of color channels and each color channel having one or more respective rows of inkjet nozzle devices. A central color channel of each printhead chip is a dummy color channel that does not receive ink from the manifold.

Abstract: A multi-channel fluid coupling for a printhead includes: a body having a first channel and a second channel, the second channel being relatively longer than the first channel; a first inlet port and a first outlet port at opposite ends of the first channel; and a second inlet port and a second outlet port at opposite ends of the second channel. The first and second channels are configured for proportionally modulating a flow resistance of fluids flowing therethrough.

Abstract: For validating computing device firmware, systems, apparatus, and methods are disclosed. The apparatus includes a processor, and a memory that stores code executable by the processor, the code including code that acquires a firmware manifest for locally stored firmware, authenticates a digital signature of the firmware manifest, and validates contents of the locally stored firmware using the firmware manifest. The apparatus may also include code that generates a local firmware manifest from the firmware, wherein validating the contents of the firmware includes comparing the local firmware manifest to the firmware manifest. In certain embodiments, the apparatus may indicate, to a user, one of success and failure of the firmware validation. The firmware manifest may be a location-specific firmware manifest corresponding to a geographical location of the apparatus and/or computing device including the locally stored firmware.

Abstract: An inkjet printhead includes: a manifold having first, second, third and fourth ink supply channels extending along the manifold and corresponding first, second, third and fourth rows of outlets defined in the manifold, wherein a first ink delivery group contains the first and second rows of outlets and a second ink delivery group contains the third and fourth rows of outlets. A first row of printhead chips is mounted to a lower surface of the manifold and a second row of printhead chips is mounted to the lower surface of the manifold. Each row of printhead chips prints two ink colors to provide a four-color printhead.

Abstract: An inkjet printhead includes: a rigid elongate manifold having ink supply channels extending along its length and a plurality of ink outlets defined therein; a shim attached to the manifold, the shim having a plurality of shim apertures for receiving ink from the ink outlets; and a plurality of printhead chips adhesively bonded directly to the shim, each printhead chip receiving ink from one or more of the ink outlets. The shim is formed of a metal alloy having a CTE of 5 ppm/° C. or less and includes an adhesion-promoting surface film layer.

Abstract: An emission detection system an enclosed combustion device stack is disclosed. The detection system has a sampling line having a first end exposed to a combusted gas passing through the stack exit port, to receive an undiluted gas sample from the stack exit port. The detection system has an electrostatic particulate matter sensor coupled to a second end of the sampling line, the second end positioned lower than and downstream of the first end, to analyze the undiluted gas sample. The detection system has an exhaust outlet coupled to and downstream of the electrostatic particulate matter sensor, to receive the undiluted gas sample from the electrostatic particulate matter sensor and feed the undiluted gas sample to the primary gas intake line upstream of the enclosed combustion device stack burner.

Abstract: An inkjet printhead includes: a manifold having a plurality of ink outlets defined in a manifold surface; a shim adhesively bonded to the manifold surface, the shim having apertures aligned with the ink outlets; a first row of printhead chips adhesively bonded to the shim; and a second row of printhead chips adhesively bonded to the shim. The shim is a one-part common shim for mounting all printhead chips of the first and second row.

Abstract: A printhead cartridge includes: an elongate manifold; a plurality of printhead chips mounted to a lower part of the manifold; and a casing mounted to an upper part of the manifold. The casing includes a first casing part and a second casing part, the first and second parts being longitudinally biased towards each such that the casing is expandable along a longitudinal axis of the manifold.

Abstract: An inkjet printhead includes: a rigid elongate manifold having one or more ink supply channels extending along its length, each ink supply channel having a base defining a plurality of ink outlets and a roof comprising an elongate flexible film; and a plurality of printhead chips mounted to the manifold, each printhead chip receiving ink from one or more of the ink outlets The flexible film includes a plurality of operatively independent bellows positioned along a length of one or more ink supply channels.

Abstract: A method of minimizing condensation on a lower surface of an inkjet printhead. The inkjet printhead has a plurality of printhead chips mounted on a manifold and a shield plate defining the lower surface. The method includes the steps of: disposing a heating layer between the manifold and the shield plate; heating the heating layer; and printing using the printhead chips, wherein heating of the heating layer minimizes condensation on the lower surface.

Abstract: A Vehicle Based Independent Range System (VBIRS) (10) comprised of individual stacked chambered modules that function as a single integrated system that provides a self-contained space based range capability, and is comprised of a power module (12), an artificial intelligence/autonomous engagement/flight termination system module (20), a satellite data modem module system (30) and a navigation, communications and control module system (40), all of which interface with a VBIRS test and checkout system (52) and a weather data system (116). The artificial intelligence/autonomous engagement/flight termination system module (20) is comprised of an inherent artificial intelligence capability that envelopes and interchanges data with an autonomous engagement controller (22) that contains all missile/rocket autonomous cooperative engagement, destruct decision software and range safety algorithm parameters required for optimum mission planning.

Abstract: An inkjet printhead includes: a rigid elongate carrier having an ink supply channel and a lower surface having a plurality of printhead chips mounted thereon; a rigid PCB attached to the lower surface of the carrier, the PCB extending a length of the carrier and projecting laterally beyond a sidewall of the carrier; a lead retainer attached to the sidewall of the carrier; and a plurality of leads extending upwardly from contact pads positioned along a longitudinal edge portion of the PCB, each lead being secured to the sidewall of the carrier via the lead retainer. The PCB supplies power and data to the printhead chips via electrical connections between the PCB and the printhead chips.

Abstract: An inkjet printhead includes: a manifold having first, second, third and fourth ink supply channels extending along the manifold and corresponding first, second, third and fourth rows of outlets defined in the manifold, wherein a first ink delivery group contains the first and second rows of outlets and a second ink delivery group contains the third and fourth rows of outlets. A first array of printhead chips is mounted to a lower surface of the manifold so as receive ink from the first and second rows of outlets and a second array of printhead chips is mounted to the lower surface of the manifold so as to receive receive ink from the third and fourth rows of outlets. A distance between the first and second ink delivery groups is greater than a distance between the first and second rows of outlets or the third and fourth rows of outlets.

Abstract: An inkjet printhead includes: a manifold having a plurality of ink outlets defined in a manifold surface; a plurality of printhead chips mounted to the manifold surface and aligned with the ink outlets; a PCB mounted to the manifold surface and offset from the ink outlets, the PCB being electrically connected to the printhead chips; and a shield plate covering the PCB. The shield plate has one face in thermal contact with the PCB and an exposed opposite face defining a lower surface of the printhead.

Abstract: An inkjet printhead includes: a rigid elongate manifold having ink supply channels extending along its length and a plurality of ink outlets defined therein; a shim attached to the manifold, the shim having a plurality of shim apertures for receiving ink from the ink outlets; and a plurality of printhead chips adhesively bonded directly to the shim, each printhead chip receiving ink from one or more of the ink outlets. The shim is formed of a metal alloy having a CTE of 5 ppm/° C. or less and includes an adhesion-promoting surface film layer.

Abstract: A printing assembly includes: a print chassis having a fixed sleeve and a print module slidably and releasably mounted in a respective sleeve. The print module has a supply module and replaceable printhead cartidge, the printhead cartridge being slidably and releasably mounted to the supply module. The printhead cartridge is removable from the print module only when the print module is released from the fixed sleeve.

Abstract: A printer includes: a media support defining a media feed path; and a pagewide printing unit for printing onto media fed along the media feed path. The printing unit includes: a maintenance chassis fixedly positioned over the media feed path, the maintenance chassis having a maintenance module fixedly mounted thereto; a print bar chassis movably mounted on the maintenance chassis, the print bar chassis including a print module having a printhead; and a lift mechanism for raising and lowering the print bar chassis relative to the maintenance chassis between a maintenance position a printing position. The printhead extends and retracts through a space defined by the maintenance module in the printing and maintenance positions, respectively.