Lexmark 31N 用户手册

The correct printer port is selected.

The computer and printer are both connected to the same wireless network.

The printer is located away from obstacles or electronic devices that could interfere with the wireless signal.

Make sure the printer and wireless access point are not separated by poles, walls, or support columns containing
metal or concrete.

Many devices can interfere with the wireless signal, including baby monitors, motors, cordless phones, security
system cameras, other wireless networks, and some Bluetooth devices.

From the printer control panel, press 

.

Press the arrow buttons to scroll to Network Setup, and then press 

.

Press the arrow buttons to scroll to Reset Network Adapter to Factory Defaults, and then press

.

Press the arrow buttons to scroll to Yes, and then press 

.

The printer wireless settings are reset to factory default settings. To verify, print a network setup page.

If you encountered problems while installing, or if your printer does not appear in the printers folder or as a printer
option when sending a print job, then you can try uninstalling and reinstalling the software.

Before you reinstall the software, check the troubleshooting checklist, and then do the following:

Wait one minute for the printer and computer to reestablish the connection. This can sometimes refresh network
connections and resolve connectivity issues.

When you are connected to another network through a VPN connection, you will not be able to access the printer
over your wireless network. End your VPN session and try printing again.

Select printer features are not available when Demo Mode is turned on.

From the home screen, navigate to:

 > Demo Mode > Off > save the setting

Troubleshooting