Patent ID: 7708391

Claim:
A printing fluid dispenser for refilling a removable printer cartridge, the printing fluid dispenser comprising: a housing with first and second portions, the first portion being displaceable relative to the second portion and adapted to receive the second portion therein; a deformable membrane for storing a quantity of printing fluid, the deformable membrane provided in the second portion of the housing; a resilient member provided between the deformable membrane and the first portion of the housing, the resilient member adapted to deform against the deformable membrane in response to displacement of the first portion relative to the second portion; a lug circumferencing a bottom end of the second portion, the lug serving as a locating feature for facilitating a positioning of the dispenser with a corresponding locating feature on the removable printer cartridge; a quality assurance (QA) chip provided at a base of the second portion, the quality assurance chip positioned to align with a QA contact of the removable printer cartridge; and an outlet through which the printing fluid is dispensed.