THERMAL INK JET HUMIDIFIER
Original Publication Date: 1992-Dec-31
Included in the Prior Art Database: 2004-Apr-06
Xerox Disclosure Journal
In a thermal ink jet drop-on-demand printing process, ink droplets are ejected from a small nozzle toward a printing substrate. When droplets are not expelled for long periods of time, water evaporation causes deposits to build up on the interior surface of a nozzle which thereby block the passageway. Additionally, a dry atmosphere can also permit the occurrence of compositional changes in the ink, which will further impede the discharge of droplets.