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1. 发明申请

WO2005044563A2 METHOD AND APPARATUS FOR REDUCING DEBRIS ACCUMULATION IN AN INK JET PRINTHEAD 审中-公开
标题翻译：用于减少喷墨打印机中的碎片积累的方法和装置
公开(公告)号：WO2005044563A2
公开(公告)日：2005-05-19
申请号：PCT/EP2004012423
申请日：2004-11-03
申请人： VIDEOJET TECHNOLOGIES LTD , HELLER JACK , WALL JOHN R , KUESTER KEVIN W
发明人： HELLER JACK , WALL JOHN R , KUESTER KEVIN W
IPC分类号： B41J2/165 , B41J2/17 , B41J29/13 , B41J29/17 , B41J
CPC分类号： B41J29/13 , B41J29/17
摘要： An inkjet printhead includes a housing defining an interior compartment. The housing includes a front or print face which presents an array of nozzles that are adapted to project drops of ink on a substrate as the substrate passes in front of the array. The front face defines a front air passage that surrounds at least a portion of the nozzle array to allow air flow between the exterior of the housing and the interior compartment. The housing defines at least one additional air passage constructed to allow air flow between the exterior of the housing and the interior compartment. The air passages are constructed to create positive air flow through the front passage which reduces the accumulation of debris around the orifice array. The printhead may also include a protective structure that extends across a portion of the front air passage to protect the orifice array from being damaged by materials, such as mail, that move past the printhead at high speeds during the printing operation.
摘要翻译：喷墨打印头包括限定内部隔室的壳体。壳体包括前面或印刷面，其呈现喷嘴阵列，其适于在衬底在阵列前方通过时将墨滴投影到衬底上。前面限定了一个前空气通道，其围绕喷嘴阵列的至少一部分，以允许空气在壳体的外部和内部隔室之间流动。壳体限定至少一个额外的空气通道，构造成允许空气在壳体的外部和内部隔间之间流动。空气通道被构造成产生通过前通道的正空气流，这减少了围绕孔阵列的碎屑积聚。打印头还可以包括延伸穿过前部空气通道的一部分的保护结构，以保护孔口阵列免受在打印操作期间以高速移动经过打印头的材料（例如邮件）的损坏。

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