Canon LBP6780x Manual page 414

6
Check the MAC address.
Printing a Network Status Print from the Printer's Control Panel and Checking It
NOTE
Loading A4 size paper
The Network Status Print is designed to be printed on A4 size paper.
Be sure to load A4 size paper when printing the Network Status Print.
1
Load A4 size paper in the multi-purpose tray or paper drawer.