In short
- Check the printer’s power, error state, cable, and network before changing macOS settings.
- Open Print Centre to distinguish a paused queue from a disconnected printer.
- Remove and re-add the printer only after simpler checks fail.
Read the status before changing anything
Open System Settings > Printers & Scanners or open Print Centre from the Utilities folder. macOS can show whether a printer is paused, disconnected, shared, restricted, or reporting an error such as a paper jam or missing supplies.
These states need different fixes. A paused queue may only need to be resumed. A disconnected USB printer needs a working cable and port. A network printer must be powered on and reachable from the same network. A shared printer depends on the Mac that shares it being awake and available.
Check the physical connection
- Confirm that the printer is powered on and not showing a paper, ink, toner, cover, or jam error.
- For USB, reconnect the cable at both ends and test another suitable port or adapter if available.
- For Wi-Fi or Ethernet, confirm that the printer is connected to the intended network.
- If the printer is shared by another Mac, confirm that the host Mac is awake and printer sharing is still enabled.
- If the printer is managed by an organisation, check with the administrator before removing or reconfiguring it.
Check the network path
A network printer can remain installed even when your Mac has moved to another Wi-Fi network, the printer has joined a guest network, or a VPN changes access to local devices. Make sure the Mac and printer are on networks that can reach each other.
If the printer has a display, inspect its network status there. If it uses AirPrint, it may reappear automatically once both devices are on the same network. For an IP printer, a changed address or print-server configuration may require help from the person who manages the network.
Inspect and resume the print queue
- Open Print CentreFind Print Centre in the Utilities folder or open the printer’s queue from Printers & Scanners.
- Look for a paused queueResume the printer or individual job if macOS shows it as paused.
- Review stuck jobsCancel a job only when you are sure it can be safely sent again.
- Send a small testUse a simple document to confirm that the queue communicates with the printer again.
Update or re-add the printer
If the connection is healthy but macOS still cannot use the printer, check for current printer software or firmware from the manufacturer. macOS normally uses AirPrint when the printer supports it; some devices rely on manufacturer software or a managed configuration.
Removing and adding the printer again can rebuild a damaged queue, but it also removes that queue’s local setup. Record important configuration first, especially the IP address, protocol, driver, options, and any organisation-specific queue name. Resetting the entire printing system is a last resort because it removes all printers and scanners from the Mac.
Choose what should happen while it is offline
A fixed macOS default can remain selected while the printer is unreachable. That is useful if you want jobs to wait for that exact device, but inconvenient when another printer is an acceptable fallback.
For an automatic fallback, define which other printers are eligible and their order. The decision should be conservative: a label printer, secure printer, or device loaded with special media may be online but still be the wrong general-purpose default.