| 摘要 |
Described herein is a snout insert, referred to as an exapander, which is pressed fit into the snout of a plastic inkjet print cartridge. The expander has a low coefficient of thermal expansion (CTE) and a high tensile modulus relative to the print cartridge body. The expander reduces the CTE of the snout to be closer to, or less than, the CTE of the nozzle member, such as a TAB head assembly, to reduce or prevent warpage of the nozzle member due to thermal cycling of the print cartridge during the manufacturing process. The nozzle member is then fixed to the snout. The expander is designed for a precise fit into the snout and, in one embodiment, includes machinable datums to ensure a tight fit. In one embodiment, the expander is inserted through the ink reservoir area in the print cartridge body and pushed into the snout.
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