ACOUSTIC DRYING SYSTEM WITH MATCHED EXHAUST FLOW

摘要

An inkjet printing system, comprising: one or more inkjet printheads (40) for printing drops of ink onto a receiver medium (15), and an acoustic air impingement drying system (20) positioned in proximity to at least one of the inkjet printhcads. The acoustic air impingement drying system includes: an airflow source (24) providing a supply flow rate; an acoustic resonant chamber (60) having an inlet slot (61) that receives air from the airflow source and an outlet slot (51) that directs air onto the receiver medium; an exhaust air channel (33) for removing the air directed onto the receiver medium by the acoustic resonant chamber; a blower (52B) for pulling air through the exhaust air channel at an exhaust flow rate; and a blower controller that controls the supply flow rate and the exhaust flow rate, wherein the exhaust flow rate is controlled to match the supply flow rate to within 1%, or to exceed the supply flow rate.