INTEGRATED VACUUM DEGASS AND OXYGEN MEASUREMENT

摘要

A method of degassing and measuring oxygen level in an ink-jet type ink prior to filling an ink-jet tank with ink includes placing the ink under a vacuum to substantially eliminate air within the ink. The ink is circulated from an ink container (10) into a flow cell (16). The flow cell is connected to an oxygen probe (18) and an oxygen meter (22) for reading the oxygen level of the ink. The ink is diverted to the flow cell or to a fill unit through a diverter valve (40). When the oxygen content reaches a pre-determined level, the ink is cycled to the fill unit (30).