Canon LBP7660Cdn Manual page 457

(2) Set HTTP.
[Use HTTP]
IMPORTANT
When the [Use HTTP] check box is cleared
The settings on the functions using HTTP change automatically, as shown below.
[Use IPP Print]
[Remote UI]*
* Can only be set from the printer's control panel and the FTP client
If the [Use HTTP] check box is cleared, you will not be able to use IPP print or Remote UI, so consult with the
network administrator before you set it.
(3) Click [OK].
When the check box is selected, you can access the printer using HTTP.
[Off]
[Off]