Canon LBP7780CX User Manual page 457

To Use IPP/IPPS Printing
Select the [Use IPP] check box, and set the following items.
[Use SSL]
[Use IPP
Authentication]
When the [Use IPP Authentication] check box is selected, set the following items.
[User Name]
[Set/Change
Password]
[Password]
[Confirm]
IMPORTANT
When the [Use IPP] check box is selected
The HTTP setting [Use HTTP] turns [On] automatically.
"HTTP Settings"
When Not Using IPP/IPPS Printing
Clear the [Use IPP] check box.
(3) Click [OK].
When the check box is selected, you can use IPPS (encryption of IPP
communication data using SSL).
You can only use IPPS when the SSL encrypted communication function is
enabled.
You cannot select the [Use SSL] check box if a key and certificate have
been created but the use key is not registered.
See "Selecting Keys and
encrypted communication functions and key registration procedures.
When the check box is selected, use the IPP print user authentication function.
Enter the user name used for the IPP print user authentication function. Up to 24
characters can be entered.
Select the check box when setting/changing the password.
Enter the password used for the IPP print user authentication function. Up to 24
characters can be entered.
For confirmation, enter the same [Password] again.
Certificates" for more information about SSL