Hewlett-packard Development Company, L.p.

Hewlett-packard Company

Other

Steven T Castle

Jefferson Patrick Ward

Jeffrey Allen Nielsen

David N Olsen

Paul L Jeran

David C Collins

Mark D Lund

Patrick V Boyd

David B Novak

Mike M Morrow

Milo A Undlin

Rory A Heim

Eric T Martin

James Michael Gardner

Daryl E Anderson

Ronald Albert Askeland

Stephen D Panshin

Judson Malcolm Leiser

Erik D Ness

Jayprakash C Bhatt

David Brian Olsen

Elijah Houle

Silam J Choy

Gabriel Scott McDaniel

Eric Joseph Johnson

Arun K Agarwal

Miquel Boleda Busquets

Laurent Pizot

Charles H McConica

Erick Blane Kinas

Blair M Kent

Loren E Johnson

Eric L Ahlvin

Stephen A Loughran

Frank Drogo

Eric Stephen Mattis

John F Meyer

Honee L Mesa

Paul E Martinson

Shawn D Hunter

William Wistar Rhoads

John Ferraro

Kyle Mannari

Teresa M Cray

Darrel H Cummings

Jesse Otto Sutherland, Iii

Alex Michael Oaks

Kyle Michel

Phillip R Hays

Choon Leng Tan

Lee Jackson

Teresa M O'keeffe

Robert Taylor

Marco Roccatti

Alberto Albertin

An example method comprising requesting authorization to reprocess a replaceable supply component using first data stored in memory of the replaceable supply component and an interface, the first data including original manufacturing data for the replaceable supply component. The method further comprises, in response to the request, receiving second data using the interface, and appending the original manufacturing data stored in the memory with the second data to designate the replaceable supply component as reprocessed.

Appending data on a replaceable supply component

A logic circuit, or method using the same, may include a memory storing (i) a plurality of partition groups, each partition group including a plurality of partitions, and (ii) a partition map defining an address and access mode for each of said partitions, defining different access modes for at least some of the partitions. The plurality of partition groups may comprise (i) a general use partition group including a first consumable level counter; (ii) a second use partition group including a second incrementally updatable consumable level counter; and (iii) a guide partition group including a use indicator to indicate which of the first and second consumable level counters to use.

Logic circuitry

Reprocessing of a replaceable supply component may include receiving from an encoding device and using an interface communicatively coupled to the encoding device, a request blob to reprocess a replaceable supply component. The method may include in response to cryptographically verifying the request blob, extracting from the request blob, a supply identifier and raw supply data. The method further includes using the supply identifier and raw supply data, generating a reprocess structure to append or amend original manufacturing data for the replaceable supply component, and providing a response blob to the encoding device, to designate the replaceable supply component as a reprocessed supply component.

Reprocessing of a replaceable supply component

In one example in accordance with the present disclosure, at least one print liquid supply interconnected is described. Each print liquid supply interconnect includes a housing movable relative to a printer and tethered via a feed hose to the printer. The housing includes at least one needle to be inserted in a print liquid supply to allow print liquid to move between the print liquid supply and an ejection device and two keyed slots disposed on either side of a first needle to gate insertion to a print liquid supply with protrusions that match the two keyed slots. The housing also includes a guide feature adjacent the first needle extending between a first keyed slot and the first needle and an electrical interface to establish a data transmission path between the print liquid supply and the ejection device, the electrical interface disposed between the first needle and a second keyed slot.

Print liquid supply interconnect in hose-fed housing

A fluid reservoir () includes a circuit () extending in the fluid reservoir to be at least partially in contact with fluid () inside the fluid reservoir during use, at least a first impedance sensor () and second impedance sensor () coupled to the circuit, wherein the at least first and second impedance sensors are to output impedance values indicative of a degree of particle separation in the fluid.

Fluid reservoir impedance sensors

In one example in accordance with the present disclosure a printer cartridge is described. The printer cartridge includes multiple backpressure chambers in fluid communication with a shared free fluid chamber. The backpressure chambers are to supply a fluid to nozzles of a portion of a fluidic ejection assembly and to provide backpressure to the nozzles of the fluidic ejection assembly during deposition of fluid onto a print medium.

Printer cartridge with multiple backpressure chambers

In some examples, a container assembly includes a first body to supply a printing composition, the first body comprising a first port, and the container assembly includes a second body to store a reserve printing composition, the second body comprising a second port. An interconnect has a storage position to fluidically isolate the first body from the second body, and a use position to fluidically connect the first body to the second body to allow the reserve printing composition to flow from the second body to the first body to replenish the printing composition in the first body and to allow air in the first body displaced by the reserve printing composition to flow from the first body to the second body. The interconnect in the storage position has a first orientation to fluidically isolate the first port from the second port, and the interconnect in the use position has a second orientation rotated with respect to the first orientation to fluidically connect the first port to the second port.

Container assembly

Examples of a container assembly are disclosed herein. An example of the container assembly includes a first body to supply printing composition and a second body to store reserve printing composition. The example of the container assembly additionally includes an interconnect having a storage position to fluidically isolate the first body from the second body and a use position to fluidically connect the first body to the second body to allow the reserve printing composition to flow from the second body to the first body as needed to replenish the printing composition in the first body and to allow air in the first body displaced by the reserve printing composition to flow from the first body to the second body.

An ink level sensing device and associated method. The ink level sensing device includes a near infrared illumination source that emits near infrared light, and a container configured to accommodate a supply of ink containing light absorption material. The device further includes a protruding chamber adjacent to the container. The protruding chamber is configured to accommodate a portion of the supply of ink accommodated by the container. The device also includes a sensor that is configured to receive a signal based on an amount of the light that passes through the protruding chamber. The method includes emitting a light from a near infrared illumination source and directing the light toward a protruding chamber of the ink supply. The method further includes sensing an amount of the light that passes through the protruding chamber in the ink supply.

Device and method for measuring ink levels in a container

A method for improving color quality in an object created by a solid freeform fabrication system keeps a colorant in an ejected material near a surface of the object.

Method of improving color quality in an object produced by solid freeform fabrication

A nozzle shield assembly includes a band of material having a tag end, a standing end, a first side, and a second side; wherein the second side is at least partially folded against itself, and the standing end is configured to cover a nozzle of a print cartridge.

Nozzle shield assembly

A method of producing an object through solid freeform fabrication includes varying a concentration of ejected material applied to form a particular object layer.

Methods and systems for producing an object through solid freeform fabrication by varying a concentration of ejected material applied to an object layer

Embodiments of the invention involve modifying non-volatile data fields in the integral memory components of consumable cartridges (and, in some embodiments, data fields in the utilizing device memory) such that the consumable cartridges become compatible with only a small subset of utilizing devices, thereby substantially reducing their potential value to a thief or unauthorized borrower.

Consumable cartridge with theft deterrence features

A wet-wiping printhead cleaning system for inkjet printer incorporating a wiper for wiping the printhead including a treatment fluid applicator configured for placing treatment fluid onto at least one element of the printhead and wiper elements involved in wiping the printhead orifice plate surface, the treatment fluid being placed on said at least one element by direct contact of the applicator, subsequently the wiper wipes the printhead, the treatment being available to enhance cleaning effectiveness, the treatment fluid lubricating the wiper so as to lengthen wiper service life and enhance wiping performance, as well as acting to render unwanted accumulations on the printhead more removable by wiping.

Servicing system for an inkjet printhead

A pen adapter is configured, in one example, to include a body having an internal surface defining a set of negative datum features configured to interlock with a first set of positive datum features. An external surface of the pen adapter is configured to define a second set of positive datum features.

Inkjet pen adapter

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Philomath, OR, United States of America

Steven T Castle