Patent ID: 9067420
Filing Date: 2015-06-30
Classification: B41J

Abstract:
1. A method for use in fluid jetting, comprising: sensing fluid levels in a first fluid container and a second fluid container, the first fluid container fluidically coupled to a first end of a flow path through a printhead, the second fluid container fluidically coupled to a second end of the flow path through the printhead; determining whether a flow direction between the first fluid container and the second fluid container is from the fluid container having a lower fluid level to the container having a higher fluid level and whether a fluid level in the container having the lower fluid level is below a threshold and; upon determining that the flow direction is from the fluid container having the lower fluid level to the container having the higher fluid level and that the fluid level in the container having the lower fluid level is below the threshold, reversing the flow direction between the first fluid container and the second fluid container so that the flow direction is from the fluid container having the higher fluid level to the container having the lower flow level.