How to Print Nozzle Check without a computer Epson L120/L121

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John
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大學生
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讓您的影片在短短幾秒內脫穎而出。精確調整語音、語言、風格和受眾，完全符合您的需求！
總結
Instructions for printing a nozzle check on Epson L120/L121 without a computer are provided. Users can troubleshoot using just a cellphone by holding the ink button and pressing the power button. The process improves print quality, and tips for cleaning the printer head are shared, emphasizing the importance of having an OTG cable for testing.
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