Configure the client certificate to use the S/MIME signature function.
On a computer connected to the same network as the printer, open a browser and enter the printer's IP address.
You can check the printer's IP address using the following menu.
Enter the administrator password to log in as an administrator.
Select the following menu.
Network Security tab > S/MIME > Client Certificate
Specify a certificate to use in Client Certificate.
Click Next.
A confirmation message is displayed.
Click OK.
The printer is updated.