| 摘要 |
An ink jet printhead with an array of nozzles unit cells 1. Each of the unit cells having one or more heaters 10 configured to form a gas bubble 12 in ejectable liquid held in the nozzle chamber. The generation of the bubble 12 causes the ejection of a drop 16 of an ejectable liquid (such as ink) through an ejection aperture 5 in each nozzle 3, to effect printing. The nozzle unit cells 1 are manufactured using semiconductor and micro mechanical techniques such that the spacing between adjacent nozzle apertures 5 in the printhead is less than 100 microns. With the use of semiconductor and micro mechanical manufacturing techniques, the dimension of the nozzles structures can be kept relatively small without significant increases in manufacturing costs. Therefore, the nozzle density in the printhead can be increased for greater printing resolution.
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