Fix an offline printer
Restore printing over USB, Wi-Fi or a local network.
- Check power, paper, ink and network connection first.
- Clear failed jobs and restart the printer and computer.
- Use the manufacturer driver when the generic one is limited.
NUNX technology guide
Computer Hardware Help
Troubleshoot printers, external displays, USB devices and common connection problems.
Practical starting points
Clear answers to common problems.
Fix a second monitor
Diagnose no signal, incorrect resolution and detection failures.
- Confirm the monitor input and both cable connections.
- Test another cable, port or computer to isolate the fault.
- Use the recommended resolution and supported refresh rate.
Fix an unrecognized USB device
Troubleshoot USB drives and accessories without risking valuable data.
- Test another port without an unpowered hub.
- Try the device on a second computer.
- Do not format a drive containing files you still need.
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