| 摘要 |
A printhead assembly with an elongate support member and two or more printhead modules detachably mounted in series along the support member, the support member having a structural component for strengthening the member, and a mounting component for mounting the printhead modules; wherein, the mounting component is connected to the structural component to allow relative thermal expansion. By allowing the structural component of the support to thermally expand relative to the mounting component, the structural components can be strong, inexpensive metal despite the co-efficient of thermal expansion (CTE). Only the mounting component need approximate the CTE of the printhead chips to maintain a suitable alignment of the modules.
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