Canon MG8100 series On-Screen Manual page 893

Select the same device name as that checked under
Note
If the device name is not displayed, see
register displayed in the printer list?
6.
Select Don't use a passkey, and then Next.
Note
If you set a passkey on the printer, select Use the passkey found in the documentation
and input the passkey then click Next.
For more information about a passkey, see
7.
Click Finish.
Setting the Printer
Check 3: Is the printer name which you want to
.
Bluetooth settings Screen
.
.