Epson EcoTank Pro ET-16680 Series User Manual page 454

Administrator Information
Deleting a CA-signed Certificate
You can delete an imported certificate when the certificate has expired or when an encrypted connection is no
longer necessary.
Important:
c
If you obtain a certificate using a CSR created from Web Config, you cannot import a deleted certificate again. In
this case, create a CSR and obtain a certificate again.
1. Access Web Config, and then select the Network Security tab. Next, select SSL/TLS > Certificate or IPsec/IP
Filtering > Client Certificate or IEEE802.1X > Client Certificate.
2. Click Delete.
3. Confirm that you want to delete the certificate in the message displayed.
Related Information
"Application for Configuring Printer Operations (Web Config)" on page 315
&
Updating a Self-signed Certificate
Because the Self-signed Certificate is issued by the printer, you can update it when it has expired or when the
content described changes.
1. Access Web Config and select the Network Security tab > SSL/TLS > Certificate.
2. Click Update.
3. Enter Common Name.
You can enter up to 5 IPv4 addresses, IPv6 addresses, host names, FQDNs between 1 to 128 characters and
separating them with commas. The first parameter is stored to the common name, and the others are stored to
the alias field for the subject of the certificate.
Example:
Printer's IP address : 192.0.2.123, Printer name : EPSONA1B2C3
Common name : EPSONA1B2C3,EPSONA1B2C3.local,192.0.2.123
4. Specify a validity period for the certificate.
5. Click Next.
A confirmation message is displayed.
6. Click OK.
The printer is updated.
Note:
You can check the certificate information from Network Security tab > SSL/TLS > Certificate > Self-signed Certificate
and click Confirm.
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Advanced Security Settings
454
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Using a Digital Certificate