Luna Fallon's answer to For what reason is my HP printer offline on a Mac? – Quora
https://www.quora.com/For-what-reason-is-my-HP-printer-offline-on-a-Mac/answer/Luna-Fallon-1?prompt_topic_bio=1
https://www.quora.com/For-what-reason-is-my-HP-printer-offline-on-a-Mac/answer/Luna-Fallon-1?prompt_topic_bio=1