Mac ioS Sierra does not recognize the printer's USB port

[gpau]

Hi,
To recognize the printer Geeetech i3 Pro C to mac ios Sierra I have to turn it off and riaccernderlo, then recognizes it.
But if I turn off the printer and power back up the mac does not recognize it more, I have to again turn off the computer.
How do I solve the problem?

[eieigoto]

สมัคร gclub