PRINTHEAD CARTRIDGE WITH HYDROPHOBIC COATING

摘要

A print cartridge including a cartridge housing having a container body and a lid that encloses the container body. The lid includes a bottom surface and a top surface. One or more air vent openings are formed through the entire thickness of the lid from the top surface to the bottom surface. A hydrophobic coating is disposed on at least one of the top or the bottom surfaces of the lid, with the hydrophobic coating being absent over the one or more air vent openings. The hydrophobic coating is deposited in liquid or gaseous form.

主权项

1. A print cartridge comprising:
a cartridge housing comprising a container body and a lid that encloses the container body, the lid comprising a bottom surface and a top surface; a fluid reservoir disposed within the container body that receives and contains fluid; a fluid ejector chip disposed on the cartridge housing and comprising a plurality of heating elements that eject the fluid from the print cartridge; one or more air vent openings formed through the entire thickness of the lid from the top surface to the bottom surface; a label disposed over the lid; and a hydrophobic coating chemically bonded on at least one of the top or the bottom surfaces of the lid along a portion devoid of the label, the hydrophobic coating being absent over the one or more air vent openings.