| 摘要 |
An inkjet printer printhead is coupled to an ink source and has a plurality of ink firing chambers (101) dimensionally defined by a barrier layer (301) disposed between a substrate and an orifice plate (111). Two ink feed channels (315, 317) are coupled to one ink firing chamber and are dimensionally defined, in part, by the barrier layer. One of these ink feed channels has a smoothly converging wide dimension inlet at the ink source and a narrow dimension outlet at the ink firing chamber. The other ink feed channel also has a converging wide dimension inlet at the ink source and a narrow dimension outlet at the ink firing chamber but has an "S" shaped wall contour (509) to make it asymmetrical to the first ink feed channel. An island (305) of the barrier layer separates one ink feed channel from the other ink feed channel serving the ink firing chamber. This island has an essentially flat wall surface disposed toward the ink firing chamber. <MATH> |
