| 摘要 |
<p>An ink jet printhead body has an ink filter structure integrally incorporated therein and operative to filter ink flowing into its internal ink receiving channels disposed between piezoelectrically deflectable interior wall portions of the body. In various illustrated embodiments of the printhead, the filter structure is defined by a series of photoetched micro filter passageways formed integrally in an outer side portion of the printhead body, a filter cavity formed in the outer side portion and receiving a separate photoetchable filter member in which photoetched micro filter passageways are formed, and a filter cavity formed in the outer side portion and receiving a separate mesh-type micro filter member. In an embodiment of the printhead adapted for use with phase change type ink, a heating channel is interiorly disposed within the outer body side portion and operatively receives an electrical resistance heating wire used to heat phase change type ink disposed within the ink receiving channels in the printhead body. <IMAGE></p> |
