Hi @Browny2,
Welcome to HP Forums, this is a great place to get support, find answers and tips.
Thank you for posting your query, I'll be more than glad to help you.
I understand that you are unable to connect your HP Photosmart Plus All-in-One Printer - B209a to your MacBook Pro.
Let's go through a few steps to troubleshoot this issue.
And here's the step by step guide for you in the link: 'Printer Offline' or 'Printer Not Responding' Message (Mac)
Let me know how this works.
You have a good day ahead.
Rainbow23
I am an HP Employee
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