The real reasons a printer reads offline, and the order to check them in before calling anyone.
A printer that shows offline is almost never broken hardware. It is usually a connection, a stuck queue, or a sleep setting.
Start with the basics: confirm the printer is on the same network as the computer, then clear the print queue and restart the print spooler.
If it keeps dropping offline, the cause is often the printer going to sleep or picking up a new network address. A fixed address on your network solves this for good.
Busy Bee Printer Master clears stuck jobs, resets the queue, and keeps the connection stable from one dashboard.