Inkjet printheads capable of printing smaller and larger drop-weight quantities of ink, and methods of manufacturing the inkjet printheads, are disclosed. The inkjet printhead includes a substrate. One or more portions of the substrate may be etched such that the substrate might have different thicknesses....http://www.google.fr/patents/US7478476?utm_source=gb-gplus-shareBrevet US7478476 - Methods of fabricating fit firing chambers of different drop wights on a single printhead
Methods of fabricating fit firing chambers of different drop wights on a ...
