That printer isn’t dual band. Meaning it doesn’t have 5ghz capability so it won’t detect it. You’ll need to connect it to the 2.4ghz. 

Thank you.  That is what I expected.  So, in order to have my laptops  onnected via wireless to the printer, am I correct I must use the 2.4 connection?  And that that decision will lead to slower downloads to them?

Since your printer isn’t dual band, it can only connect to the router using 2.4GHz.  Your laptops or other mobile devices can connect to the router using either band, if they support dual band.  The router would “translate” the connection between the router to laptops to the connection between the router to the printer, regardless of the band, that’s the job of the router.

JDub, thank you.  I had not done proper homework on this issue.  Ended up running all other devices on 5G and had to compromise with printer wired  direct to one computer.