Patent ID: 7232208

Claim:
A printing fluid dispenser comprising: a housing having first and second portions, the first portion being moveable a maximum distance relative to the second portion; a deformable container of printing fluid within the housing, the container having an outlet arranged to convey the printing fluid to a point external to the housing; and, a resilient member engaging housing and the deformable container, the resilient member being elastically deformable such that the resilient member resists the deformation with a restorative force acting in a direction opposing the deformation; wherein during use, moving the first portion relative to the second portion deforms the resilient member such that its restorative force acts on the deformable container to cause egress of the printing fluid through the outlet; wherein, the maximum distance the first portion can move relative to the second portion is associated with maximum possible restorative force that can move against the deformable container, the restorative force subsequently decreasing with the egress of printing fluid from the outlet.