The CK710UE is an older diagnostic tool. The drivers provided on the manufacturer's mini-CD are often outdated, or they lack the digital signatures that Windows 10 and 11 require by default. When you plug it in, Windows tries to install a generic "USB-Serial" driver that often fails.
If your CK710-UE still isn't printing, try these quick fixes: купить принтер чеков OKTANE CK710 ck710ue driver work