Canon imagePROGRAF TA-20 MFP 24" Large Format Printer with L24ei Scanner and Stand Kit - Manual (Page 737)

Cannot Print over Bonjour networks
Check1 Is the computer you are trying to print from configured correctly?
Make sure the computer is configured correctly.
Check2 Are the computer and printer on the same network?
Due to the nature of Bonjour, printing may not be possible if the printer is on another network behind a router.
Make sure the computer and printer are on the same network. For information about network settings, ask your
network administrator.
Check3 Are the printer's Bonjour settings configured correctly?
Make sure the Bonjour settings are configured correctly.
737