Several options exist. Start by reviewing the product's documentation.
Detailed instructions for Wireless set up:
Where are these options exactly (From the menu)
Settings/Registration > Preferences> Network> Wireless LAN> Wireless LAN Information> (Other) Set Manually
Canon has also also introduced a product configurator. This also works as a back up for your settings, so I suggest you look at it also.
Note, Canon does not provide support for its IR printers, this is provided by its dealer network.
Bay Area - CA
~R5C (126.96.36.199) ~Many Lenses ~DxO PhotoLab Elite ~Windows10 Pro ~EVGA RTX 3080Ti FTW3 Ultra
~ImageClass MF644Cdw ~Pixel6 ~6D2 (v1.1.1) retiring
If you are using an ethernet connection with the printer, you will not need to update any information on the printer if you change your SSID or password. The printer does not use that information when connecting via ethernet so changing any wifi settings will not affect the connection.