Method of manufacturing a printhead assembly having...

Details Method of manufacturing a printhead assembly having... Method of manufacturing a printhead assembly having...

2005-06-14

2005-06-14

Tugbang, A. Dexter (Department: 3729)

Metal working

Method of mechanical manufacture

Fluid pattern dispersing device making, e.g., ink jet

C029S025350, C347S040000, C347S042000

Reexamination Certificate

active

06904678

ABSTRACT:
A method of manufacturing a printhead assembly for an A4 pagewidth drop on demand printer includes a number of printhead modules situated along a metal channel. The metal channel is typically 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. Within the manufacturing method, the channel captures the printhead modules in a precise alignment relative to each other and the similar coefficient of thermal expansion of the “Invar” channel to the silicon chips allows similar relative movement during temperature changes.

REFERENCES:
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patent: 5160945 (1992-11-01), Drake
patent: 6062666 (2000-05-01), Omata et al.
patent: 6234605 (2001-05-01), Hilton
patent: 6281912 (2001-08-01), Silverbrook
patent: 2000263768 (2000-09-01), None
patent: WO 01/66354 (2001-09-01), None
patent: WO 01/66355 (2001-09-01), None

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