Hi and Welcome. My Name is ***** ***** I look forward to assisting you today with your question.
How is it connected to your Mac ? WiFi or with USB cable ?
We can reset the printing system and see if it works or not.
After resetting, your Printer will disappear from the list. Click the + button in there (in left corner) and add it back
If your Mac is not seeing it, then it is possible that the printer has lost connection with the router. So follow the steps below to add it back
Turn on the Printer.
In the Home screen, click the Setup button.
Select Device Settings
Select LAN Settings
Select Wireless LAN Setup > Standard Setup. This will find your new WiFI network. Select it and enter the password ***** needed. This will connect the printer to your new network.
Ad it to your Mac. Let me know how it goes please.