how to turn off wifi on a printer


hi, we have an HP Officejet Pro 7740 that is mostly used wired. It seems to always be broadcasting wifi and for security reasons I’d like to turn that off. Does anybody know how? HP support has a lot of info about connecting , nothing I can find about disabling or temporarily turning off wifi on the printer. It seems like a security risk, or am I worrying for nothing?

Please move to whatever part of the forum is appropriate. Thanks! Number