Patent ID: 7686427
Filing Date: 2010-03-30
Classification: B41J

Abstract:
1. A nozzle arrangement for an inkjet printer, said nozzle arrangement comprising: a wafer substrate defining an ink passage; a nozzle plate supported on said substrate by side walls to define an ink chamber operatively supplied with ink via said ink passage, the nozzle plate defining an ink ejection port surrounded by a nozzle rim; and a heater element bonded to the nozzle plate about said ejection port inside the chamber for vaporising ink to generate a vapour bubble that ejects ink from the chamber, wherein the heater element is bonded to the nozzle plate with a low thermal product layer, wherein the low thermal product layer has a thermal product less than 1495 Jm-2 K-1 s-½, the thermal product being (pCk) ½, where p is the density of the layer, C is specific heat of the layer and k is thermal conductivity of the layer.