Hewlett-packard Development Company, L.p.

Joan Albert Miravet Jimenez

Albert Crespi Serrano

Aleix Fort Filgueira

Marta Coma Vives

David Toussaint

David Butinya

A device includes a fluid channel connecting a pair of ports and an attachment feature to attach the device at a dummy cartridge; wherein the pair of ports is dimensioned to mate with fluid feed ports of a printer when the device is attached to the dummy cartridge and the dummy cartridge is inserted in the printer.

Dummy cartridge accessory device

In an example, a pressure system includes a fluid movement device, a buffer reservoir coupled to the fluid movement device, and a first fluid interface coupled to the buffer reservoir. In that example, the first fluid interface is able to couple to a pressurizable chamber of a print fluid container (that can apply force on a print fluid bag of the print fluid container).

Buffer reservoirs

A printing fluid cartridge () for a pumped printing fluid system containing a pump () is described, the printing fluid cartridge () comprising a housing () defining an interior chamber (); a collapsible bag () within the chamber for holding a supply of printing fluid (); and a fluid connection member () for forming a fluid connection between the collapsible bag () and an upstream side of the pump (). The housing () includes a structure allowing the application of manual pressure to the collapsible bag () to urge printing fluid out of the collapsible bag through the fluid connection member () to the upstream side of the pump () to displace air () in the fluid connection member () and the pump ().

Growing community of inventors

Sant Cugat del Valles, Spain

Joan Albert Miravet Jimenez