Printhead assembly having printhead modules in a c

专利名称：Printhead assembly having printhead

modules in a channel

发明人：Kia Silverbrook,Tobin Allen King申请号：US10472172申请日：20030922

公开号：US20040090491A1公开日：20040513

专利附图：

摘要：A printhead assembly () for an A4 pagewidth drop on demand printer includes anumber of printhead modules () situated along a metal channel (). The metal channel () istypically of a special alloy called “Invar 36”. Preferably the channel () is nickel plated to

help match it to the coefficient of thermal expansion of silicon, being the major

component of each individual printhead module (). The channel () captures the printheadmodules () in a precise alignment relative to each other and the similar coefficient ofthermal expansion of the “Invar” channel () to the silicon chips allows similar relativemovement during temperature changes.

申请人：SILVERBROOK KIA,KING TOBIN ALLEN

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