Ejection arrangement for printhead nozzle
An ejection arrangement is provided for a printhead nozzle. The arrangement has a chamber having an inlet defined by edge portions of a first side of the chamber and an ejection port defined in a second side of the chamber, and an ejection member located in the chamber between the edge portions. The ejection member is operable to cause ejection of fluid in the chamber through the ejection port and subsequent refill of fluid into the chamber through the inlet. The edge portions are configured to reduce fluid flow through a space between the edge portions and the ejection member during ejection.
1. An ejection arrangement for a printhead nozzle, the arrangement comprising:
a chamber having an inlet defined by edge portions of a first side of the chamber and an ejection port defined in a second side of the chamber; and
an ejection member located in the chamber between the edge portions, the ejection member being operable to cause ejection of fluid in the chamber through the ejection port and subsequent refill of fluid into the chamber through the inlet,
wherein the edge portions are configured to reduce fluid flow through a space between the edge portions and the ejection member during said ejection,
wherein the edge portions surround the inlet and are angled into the chamber from the first side of the chamber.
2. An ejection arrangement according to claim 1 , wherein said operation of the ejection member is caused by conductive heating of a portion of the ejection member.