Canon imagePROGRAF TA-20 MFP 24" Large Format Printer with L24ei Scanner and Stand Kit - Manual (Page 347)

Restrictions
If you use a printer over the Wi-Fi, we highly recommend you perform security settings for Wi-Fi network
using WPA/WPA2 from the viewpoint of security. Wireless communication with a product that does not
comply with the Wi-Fi standard cannot be guaranteed.
Connecting with too many computers may affect the printer performance, such as printing speed.
If you use a printer with Wireless Direct, you cannot perform the following settings:
• Specifying an IP address manually
• Enabling/disabling IPv6
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