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Solving Problems
Restart the wireless router or reset the network settings for the printer.
"Setting a Static IP Address for the Printer" on page 136
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The device connected to the USB 3.0 port causes radio frequency interference.
Solutions
When you connect a device to the USB 3.0 port on a Mac, radio frequency interference may occur. Try
the following if you cannot connect to wireless LAN (Wi-Fi) or if operations become unstable.
❏ Place the device that is connected to the USB 3.0 port further away from the computer.
There is a problem with the network settings on the computer or smart device.
Solutions
Try accessing any website from your computer or smart device to make sure that your device's network
settings are correct. If you cannot access any websites, there is a problem on the computer or smart
device.
Check the network connection for the computer or smart device. See the documentation provided with
the computer or smart device for details.
The printer has been connected by Ethernet using devices that support IEEE802.3az (Energy
Efficient Ethernet).
Solutions
When you connect the printer by Ethernet using devices that support IEEE802.3az (Energy Efficient
Ethernet), the following problems may occur depending on the hub or router that you are using.
❏ Connection becomes unstable, the printer is connected and disconnected again and again.
❏ Cannot connect to the printer.
❏ The communication speed becomes slow.
Follow the steps below to disable IEEE802.3az for the printer and then connect.
1. Remove the Ethernet cable connected to the computer and the printer.
2. When IEEE802.3az for the computer is enabled, disable it.
See the documentation provided with the computer for details.
3. Connect the computer and the printer with an Ethernet cable directly.
4. On the printer, print a network connection report.
"Checking the Printer's Network Connection Status (Network Connection Report)" on page 125
5. Check the printer's IP address on the network connection report.
6. On the computer, access Web Config.
7. Select Log in and enter the administrator password.
Launch a Web browser, and then enter the printer's IP address.
"Application for Configuring Printer Operations (Web Config)" on page 210
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Cannot Print, Scan, or Fax
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The Printer Cannot Connect to the Network
149
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