Patent ID: 8746859

Claim:
A method for use in fluid jetting, the method comprising: delivering a first portion of a fluid at a controlled flow rate along a first flow path from a first container to a second container, the first portion of the fluid in the first flow path passing by a second flow path in a printhead along a first direction, the second flow path fluidically connecting the first flow path to a nozzle such that a second portion of the fluid passing through the first flow path is delivered through the second flow path to the nozzle when the nozzle is ejecting the fluid delivered from the first container; and delivering a third portion of the fluid at a controlled flow rate along a third flow path from the second container to the first container, the third portion of the fluid in the third flow path passing by the second flow path in the printhead along a second direction opposite to the first direction, the second flow path fluidically connecting the third flow path to the nozzle such that a fourth portion of the fluid passing through the third flow path is delivered through the second flow path to the nozzle when the nozzle is ejecting the fluid delivered from the second container.