MX-1800N (serv.man41). System Settings Guide (Supplied as pdf file on m c's Hard Disk Drive). - Sharp Copying Equipment User Guide / Operation Manual. Page 120

The following settings are related to security. Touch the [Security Settings] key and configure the settings.

SSL transmission can be applied to a data transmission 
on the network.
SSL is the protocol enable to encrypt the data and 
receive and send it. Encrypting data makes it possible to 
transmit and receive sensitive information safely.
SSL can be enabled for the following protocols:

• HTTPS: Use SSL encryption for the exchange of 

information between a Web server and 
clients.

• IPP-SSL: Use SSL encryption for transmission and 

reception using IPP.

To enable these settings, select the desired checkboxes 

 and touch the [OK] key.