Nozzle arrangement with sidewall incorporating heater element

摘要

A nozzle arrangement for ejecting ink includes a substrate assembly defining an ink inlet passage and including heater element drive circuitry. A nozzle chamber structure is arranged on the substrate assembly and includes side walls positioned about the ink inlet passage. The nozzle chamber structure defines a nozzle chamber in fluid communication with the ink inlet passage and an aperture through which ink in the nozzle chamber can be ejected. A heater element forms part of and extends from the side walls and into the chamber, and connected to the drive circuitry to be supplied with current so that ink in the nozzle chamber is ejected out through the aperture when heated by the heater element.