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To clarify that error message, first of all: it means, "either the scanner is Off, OR the USB cable connection isn't there."
It's possible that you simply have a USB cable that is defective or has gone bad. And make sure it is plugged in at both ends (and switch it to a different USB port on your computer.)
To clarify: This is JustAnswer.com. We do provide advice for Canon products, but are not an affiliate in any way to Canon.
If the scanner was recently purchased and re-seating the USB cable at both ends, trying a new/different USB port, and trying a different USB cable, all don't change the error message, then you should indeed return it promptly to the vendor or store for a refund or an exchange for another... if the return-exchange period of your vendor or store has not expired already.
If it has expired already, then you may require Canon to fix the problem for free, under warranty terms.
Specifications for this scanner model at
specifically say the interface is high-speed USB (i.e. USB 2.0), and say nothing whatever about wireless capability.