The clog-free inkjet printer nozzle uses a droplet of oil to prevent the ink from drying out
There was a time not so long ago that my inkjet printer saw a lot of action. Nowadays, however, it can sit idle for weeks or even months before being called into service. But when it is called upon, the long break between print jobs means the print heads are usually clogged and an ink-wasting head clean needs to be performed. Taking inspiration from the human eye, researchers at the University of Missouri (MU) have developed a print nozzle that prevents the ink inside from drying out when not in use.
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