Patent ID: 8342657
Filing Date: 2013-01-01
Classification: B41J

Abstract:
1. An inkjet nozzle assembly comprising: a chamber for containing an electable liquid, said chamber having a nozzle opening for ejection of said liquid; a heater element disposed in said chamber, said heater element having a first side and an opposite second side, said first side being positioned tzar directly contacting the electable liquid; and a dielectric layer sandwiched between the second side of said heater element and a wall of said chamber, wherein the dielectric layer has a thermal product of less than 1495 Jm −2 K −1 s −1/2 , the thermal product being defined as (ρCk) 1/2 , where ρ is the density of the layer, C is specific heat of the layer and k is thermal conductivity of the layer.