The EPSON NX 510 is the worst printer in the world. It's cheap because Epson calculated that if one color runs out, even if you don't need to print anything with magenta ink, the printer won't work. In addition, if the printer is not used every day, you waste a lot of ink cleaning the printheads and nozzles. I can't blame the ink, but I can blame EPSON for making a printer like this that they continue to make money from.
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