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Registering Printer's Root Certificate to Web Browser

If the printer's root certificate has not been registered to the web browser, a message to warn you that the secure connection is not guaranteed may appear.

When you display Remote UI for the first time on your smartphone, tablet, or computer, download the root certificate, and then register it to the web browser. The secure connection will be confirmed and a message will not appear.

How to register the root certificate varies depending on the web browser.

For other web browser, refer to each help.

Important

  • Make sure that you have accessed to the printer IP address correctly by checking the URL field of the web browser before registering the root certificate.

For Internet Explorer

  1. Select Download on Remote UI.

    Downloading the root certificate is started.

  2. If confirmation screen appears, select Open.

    The Certificate screen appears.

    Note

    • To save the certificate file to your device and register it, select Save. Select Internet options from Tool menu of Internet Explorer, register the root certificate from Certificates on Content sheet.
  3. Select Install Certificate.

    The Certificate Import Wizard screen appears.

  4. Select Next.

  5. Select Place all certificates in the following store.

  6. Select Browse.

    The Select Certificate Store screen appears.

  7. Select Trusted Root Certification Authorities and OK.

  8. Select Next on Certificate Import Wizard screen.

  9. If Completing the Certificate Import Wizard appears, select Finish.

    The Security Warning screen appears.

  10. Make sure thumbprint on Security Warning screen matches printer's thumbprint.

    For printer's thumbprint, touch the HOME button, select Device settings > LAN settings > Confirm LAN settings, check Root cert. thumbprint (SHA-1) or Root cert. thumbprint (SHA-256).

  11. If thumbprint on Security Warning screen matches printer's thumbprint, select Yes.

  12. Select Yes on Certificate Import Wizard screen.

    The root certificate registration is completed.

For Safari

  1. Select Download on Remote UI.

    Downloading the root certificate is started.

  2. Open download file.

    The Add Certificates screen appears.

  3. Select Add.

    The certificate information appears.

  4. Make sure thumbprint of certificate detail information matches printer's thumbprint.

    For printer's thumbprint, touch the HOME button, select Device settings > LAN settings > Confirm LAN settings, check Root cert. thumbprint (SHA-1) or Root cert. thumbprint (SHA-256).

  5. If thumbprint of certificate detail information matches printer's thumbprint, select Always Trust.

    The root certificate registration is completed.

    Note

    • If a password is set on your device, entering a password may be required.

For Chrome on Android

  1. Select Download on Remote UI.

    Downloading the root certificate is started and then Name the certificate screen is displayed.

  2. As entering the root certificate name is required, enter an arbitrary certificate name and select OK.

    The root certificate registration is completed.

    Note

    • If PIN or password is not set as security type, the attention screen may appear. Select OK, and then set the security type to PIN or password.

After Root Certificate Registration

We recommend that you make sure that the correct root certificate has been registered.

To make sure that the correct root certificate has been registered, make sure that thumbprint of certificate information matches printer's thumbprint. Follow the steps below.

Note

  • Some Android devices cannot be checked the thumbprint of a registered route certificate.
  1. From Settings menu on your device, select Security, Trust credentials, and USER.

    The list of downloaded certificates appears.

  2. Select downloaded certificate.

    The certificate information appears.

  3. Make sure that thumbprint of certificate information matches printer's thumbprint.

    For printer's thumbprint, touch the HOME button, select Device settings > LAN settings > Confirm LAN settings, check Root cert. thumbprint (SHA-1) or Root cert. thumbprint (SHA-256).

  4. If thumbprint of certificate information screen matches printer's thumbprint, select OK.

    The root certificate registration is completed.

    If the message to warn you that the secure connection is not guaranteed appears when you select Log on on Remote UI after registering the root certificate, restart the web browser. The message will not appear on the web browser.

Note

  • Depending on the Android device, a warning may appear even after registering the proper root certificate.

For Mobile Safari on iOS

  1. Select Download on Remote UI.

    Downloading the root certificate is started and then Install Profile screen is displayed.

  2. Select Install.

    The Warning screen appears.

    Note

    • If a password is set on your device, entering a password may be required.
  3. Select Install.

  4. Select Install on displayed dialog.

    The root certificate registration is completed.