Brother MFC-J680DW Basic User's Manual page 74

Try printing with your machine. If the problem still remains, uninstall and reinstall the
printer driver.
5
If the problem still remains after trying all the above, try the following:
For a USB interface connection
• Change the USB cable for a new one.
• Use a different USB port.
For a Wired Network connection
• Change the LAN cable for a new one.
• Use a different LAN port on your hub.
• Make sure your machine's wired connection is on.
For a Wireless Network connection
• Confirm your machine's Wireless status on the LCD.
Your machine has not been connected to the wireless access point. Set up the
wireless network connection.
The wireless connection setting is disabled. Enable the WLAN connection and
set up the wireless network connection.
The wireless access point cannot be detected. Set up the wireless network
connection again.
The wireless network is connected. A three-level indicator in the LCD displays
the current wireless signal strength.
You can configure wireless settings by pressing each wireless status button.
If you cannot print on both sides of paper, check the following:
6
Change the paper size setting in the printer driver to Letter.
58