Hewlett-packard Development Company, L.P.

Odhran Hendley

Eduardo Macias

Michael Mulloy

Bryan Murphy

Jon Rittgers

William Jon Rittgers

Mark Loughlin

John McNeilly

Phil Keenan

Coilin Hegarty

Mark Laughlin

Maurice Byrne

Michelle Ryan Meleady

Fred Logue

Michael P Mulloy

John Mcneilly

Brian A Murphy

Examples include printing devices configured for use with a plurality of replaceable supplies. A remaining amount of printing material may be monitored for each replaceable supply. A set of one or more replaceable supplies to be replaced may be determined based at least in part on the remaining amount of printing material for each replaceable supply and an amount of printing material corresponding to performing a service routine for supply replacement.

Service routine based supply replacement determination

In one example of the disclosure, environmental data indicative of an environmental factor measured at a printer is received via a network. The receipt of the environmental data is via an authorized non-anonymous data flow from the printer. Instructions for a service event to occur at the printer are determined based upon the environmental data. The service event instructions are sent, via the network, to the printer to cause the printer to perform the service event.

Printer servicing

A fluid container ship cap seals a plurality of fluid interconnects of a fluid container during one or both of shipping and storage. The fluid container ship cap includes an elastomeric seal having a plurality of fluidic sealing members to seal a corresponding plurality of fluid interconnects. The fluid container ship cap further includes a rigid shell to rotate the fluid container ship cap about an axis of rotation at a fulcrum provided by a first fluidic sealing member of the plurality of fluidic sealing members. The elastomeric seal is affixed to the rigid shell.

Fluid container ship cap

A printer credit management method is disclosed, the method includes receiving a code at a printer. From the code, a printer identifier and a credit value are discerned. It is determined if the printer identifier corresponds to a unique identifier assigned to the printer. Only upon a positive determination, a credit balance maintained by the printer is updated to include the credit value.

Printer credit management

A fluid cartridge sub-assembly comprising a first vent bore, an elongate air channel, a cover extending over the first vent bore and the air channel, and a second vent bore connected to the air channel.

Fluid cartridge sub-assembly

A liquid permeable interconnect membrane for a liquid supply outlet, and a void between the interconnect membranes and an opposite void wall, the interconnect membrane being stiff enough to avoid unwanted pore deformation or contact with the opposite void wall.

Interconnect membrane

In one example, a fluid cartridge for an inkjet type liquid dispensing device includes a housing having a chamber therein for holding a liquid, a vent through which air may enter the chamber, and an outlet through which liquid may pass from the chamber out of the housing. A capillary material is disposed in the chamber between the vent and the outlet so that, when the capillary material is sufficiently depleted of liquid, the capillary material forms an airway from the vent to the outlet. The outlet configured to cause an abrupt break in a liquid connection in the outlet as air enters the outlet through the capillary material.

Fluid cartridge

An ink supply reservoir, and method of supplying ink, is described.

Ink supply reservoir

An ink supply container includes a first portion and a second portion. The first portion is configured to hold a first volume of ink and is configured to be releasably connectable to a printhead. The second portion is configured to hold a second volume of ink and is in communication with the first portion. The second portion is configured to extend over a top of at least one other ink supply container upon releasable connection of the first portion of the container to a printhead assembly.

Ink supply container

An ink container usable with an image forming apparatus having a carriage to transport the ink container in a reciprocating motion across a substrate and an ink ejector to eject the ink onto the substrate is included. The ink container includes a chamber configured to supply ink to the ink ejector of the image forming apparatus. The ink container also includes a separation member disposed within the chamber configured to separate unwanted particles from the ink in response to the reciprocating motion of the carriage and gravity, and to direct the ink downstream to the ink ejector.

Ink container to separate unwanted particles from ink

A method of making an inkjet printhead comprises forming at least one ink ejection elementon a surfaceof a substrateand forming a slotin the substrate to provide fluid communication between an ink supply and the ink ejection element. A protective coatingis applied to the surface of the substrate prior to forming the slot. The protective coating comprises a non-polymeric material which is capable of forming a covalent bond with the substrate and is removed from the substrate without damaging the ink ejection element following slot formation.

Growing community of inventors

Bray, Ireland

Odhran Hendley