# Root Certificate
Device Management > Configuration > Security > Root Certificate

Displays a list of root certificates that have been imported into the device.
Use this page to change the status of a root certificate, or delete or import a root certificate.

Note

- Settings on this page can be changed by the following administrator:
  - Network Administrator

### Root Certificate Check

Select Active to use the validate function to verify the root certificate is trusted.

Note

- A trusted root certificate is a certificate issued by a trusted third party CA.

## Imported Root Certificate

Displays a list of root certificates that have been imported into the device, and buttons you can use to delete or change the status of a certificate.

### Delete

Click to delete a selected root certificate.

### Update to Trustworthy Certificate

Click to change the status of a selected root certificate from Untrustworthy to Trustworthy.

Note

- This button is not displayed if the status of all root certificates in the list is Trustworthy.

### List of display items

Click the option button to the left of the certificate information to select a certificate.
To delete or change the status of a certificate, select the certificate, and then click the button in the upper left of the page.
The following items are displayed:

#### Issued to

Displays the owner of the certificate.

#### Issuer

Displays the issuer of the certificate.

#### Term of Validity

Displays the expiration date of the certificate in Greenwich Mean Time (GMT) format.

#### Status

Displays the status of the certificate: Trustworthy or Untrustworthy.
Click Update to Trustworthy Certificate to change the status.

Note

- The Untrustworthy status indicates the root certificate has been tampered with after being imported into the device or it has already been imported into another device.
  The status of expired or lapsed root certificates is Trustworthy.

## Import Root Certificate

### Root Certificate to Import

Specify the certificate file you want to import.
Enter the full pathname of the file you want to import, or click Browse to select the file.

Note

- Files larger than 16 KB cannot be imported.
- The following type of certificate can be imported:
  - Base 64 Encoded X.509

### Import

Click to import the selected root certificate.

Note

- After clicking the Import button, subsequent procedures differ from browser to browser.
- Import cannot be canceled even if you click the Cancel button. To delete the imported root certificate, select the certificate in the list, and then click Delete.

## Buttons

### Refresh

Click to update the currently displayed information.

Note

- Before making the settings, click Refresh to obtain the machine's current status.

### OK

Click to apply the settings.

### Cancel

Click to cancel the settings.

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