Can't find printer which was working fine before

[sporeman001]

I was able to print wirelessly from my iMac to my HP Photosmart 7510 until a few days ago.  It just would not connect.

I've run 'reset printer' on my iMac to start over but when I try to fresh install it could not find the printer.  I manually install using the ip address but when I tried to print, it says printer not responding.

I can print ok from my iPad.

My broadband router is supplied by Vodafone.

OS = MacOS 10.14 Mojave

Appreciate some assistance.  

[senan6806 · Accepted solution]

@sporeman001

A warm welcome to HP Support Community! I'd like to help.

Do you have any antivirus software installed on your Mac?

Do you have a guest network enabled on your WiFi router?

Do you have 2.4GHz and 5GHz networks enabled on your WiFi router?

Approximately how far is the printer located from the WiFi router?

Could you check for WiFi interference and also perform a ping test using the Mac Network Utility and let me know the results. Use the printer IP address to perform a ping test, the printer IP can be located by touching the wireless icon on the printer display.