CPC B41J 2/14153 (2013.01) [B41J 2/175 (2013.01); G01N 17/008 (2013.01)] | 15 Claims |
1. A fluid ejection device, comprising:
a substrate that includes a fluid feed hole; and
a corrosion-detecting conductive path disposed behind a wall of the fluid feed hole;
wherein the corrosion-detecting conductive path is to close a circuit in response to exposure of the corrosion-detecting conductive path to a fluid.
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