HP 6400 needs to be unplugged almost every time I want to print wireless on a Mac

[grandnational]

My HP 6400 always has a problem going idle and not waking up when I try to print wirelessly on my MacBook.

Am I missing something ?, because I should not have to unplug the printer once or more to get it back online almost every time.

Any suggestions ? I have a MacBook pro running OSX 10.15

Thanks

[Jim_WiFi]

Hello Grandnational,

When you encounter this problem, are you able to print any report pages from the printer directly?  Specifically it would be interesting to see the content of the Network Configuration Page and Wireless Network Test Report.  For your printer here are the steps to print these report pages:

[grandnational]

Hey Jim 

Your instructions did not work but I did solve the problem.

Removed printer from the list in System Preferences->Printers & Scanners on the Mac and then opened HP Smart

There I was instructed to add the printer

Works fine now

Thanks for you interest

P.S. It was a different driver - I'm not sure why the other one worked at all but.....?