Canon MF419x User Manual page 747

Could not connect using WPS. Wait a moment, then configure the settings
again.
When automatic setting with WPS was attempted, the connection failed due to an error.
● Wait for a while, and set again. If the problem persists, check whether the wireless router supports WPS.
If WPS is supported:
Check whether the machine is properly installed and ready to connect to the network.
Installation/Settings Problems(P. 758)
If WPS is not supported:
Set using another connecting method.
Connecting to a Wireless LAN (P. 419)
Could not connect. The maximum number of devices that can connect to the
access point has been reached.
The machine attempted to connect to a wireless LAN router to which the maximum number of devices
were already connected.
● Decrease the number of devices (clients) that are connected to the wireless LAN router. For information on
the maximum number of devices that can connect, see the instruction manual for the wireless LAN router
or contact the manufacturer.
Could not detect any connections from wireless devices.
It was not possible to detect any mobile device within the predetermined length of time.
● Connect again paying attention to the time limit.
Make Direct Connection (Access Point Mode)(P. 388)
Could not perform cleaning.
Paper jammed during cleaning.
● Remove the jammed paper, set paper correctly, and perform cleaning again.
Clearing Jams(P. 723)
Feeder(P. 789)
Fixing Unit(P. 791)
The amount remaining in toner cartridges required for cleaning the fixing unit is insufficient.
● Cleaning requires sufficient toner cartridge remaining. Replace the toner cartridge, and perform the
cleaning again.
Replacing Toner Cartridges(P. 793)
Troubleshooting
738