| 摘要 |
Provided is nozzle arrangement for an inkjet printer. The arrangement includes a wafer substrate defining a supply channel and chamber side and roof walls positioned on the substrate, said walls defining a nozzle chamber operatively supplied with ink via the supply channel, a nozzle rim defined in the roof wall. The arrangement also includes a thermal bend actuator attached to said substrate via a post, the actuator passing through a slot defined in a wall of the chamber, the actuator ending in an ejection paddle inside the chamber, said actuator configured to operatively eject ink from the nozzle chamber. The arrangement further includes a poker extending from the paddle towards the nozzle rim such that an ink meniscus is formed between the rim and the poker, as well as an actuator slot protection barrier mounted on the actuator proximate the slot and configured to reduce ink wicking on the nozzle rim during ejection of ink from the nozzle rim.
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