Introduction: Harvest the (mysterious Not-a-sensor) Sensor From an Epson Inkjet Cartridge
Many inkjet cartridges have electronic sensors to monitor ink levels. The Epson 69 cartridge seems to have an infrared sensor, which might be of use. I am publishing photos of the teardown for the reference of others who wish to try to make use of them.
*edit* I am now told that this is not a sensor at all. Imagine my disappointment. I am changing the title so it does not mislead.