Register the Printer's Root Certificate to a Web Browser for SSL Communication (Remote UI) - GX4020
Article ID: ART181034
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Date published: 12/01/2022
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Date last updated: 12/06/2022
Description
Learn how to register the MAXIFY GX4020's root certificate to a web browser for secure network communication.
Solution
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.However, the message may appear depending on a web browser even after you have registered the root certificate.
Make sure that you have accessed to the printerIP address correctly by checking the URL field of the web browser before registering the root certificate.
To save the certificate file to your device and register it, select Save.Select Privacy and security > Security > Manage certificates from the Settings menu, click Import on the Trusted Root Certification Authorities tab of Certificates and register it.
Select Install Certificate.
The Certificate Import Wizard screen is displayed.
Select Next.
Select Place all certificates in the following store.
Select Browse.
The Select Certificate Store screen is displayed.
Select Trusted Root Certification Authorities and OK.
Select Next on the Certificate Import Wizard screen.
If Completing the Certificate Import Wizard appears, select Finish.
The Security Warning screen is displayed.
Make sure that the thumbprint on the Security Warning screen matches printer's thumbprint.
For the printer's thumbprint, check "Cert. Fingerprt(SHA-256)" column on the network information that was printed when you check the printer's IP address.
If thumbprint on Security Warning screen matches printer's thumbprint, select Yes.
Select OK on Certificate Import Wizard screen.
The root certificate registration is completed.
Select Download in the Remote UI.
Downloading the root certificate is started.
Open the downloaded file.
The Add Certificates screen is displayed.
Select Add.
Make sure that the thumbprint of certificate detail information matches printer's thumbprint.
For the printer's thumbprint, check "Cert. Fingerprt(SHA-256)" column on the network information that was printed when you check the printer's IP address.
If the thumbprint of certificate detail information matches the printer's thumbprint, select Always Trust.
The root certificate registration is completed.
If a password is set on your device, entering a password may be required.
Select Download in the Remote UI.
Downloading the root certificate is started and then the Name the certificate screen is displayed.
As entering the root certificate name is required, enter an arbitrary certificate name and select OK.
The root certificate registration is completed.
If a PIN or password is not set as the 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.
Some Android devices cannot be checked the thumbprint of a registered route certificate.
From Settings menu on your device, select Security, Trust credentials, and USER.
The list of downloaded certificates appears.
Select the downloaded certificate.
The certificate information appears.
Make sure that thumbprint of certificate information matches printer's thumbprint.
If the thumbprint of the certificate information screen matches printer's thumbprint, select OK.
The root certificate registration is completed.
If a message to warn you that the secure connection is not guaranteed appears when you select Log in in the Remote UI after registering the root certificate, restart the web browser.The message will not appear on the web browser.
Depending on the Android device, a warning may appear even after registering the proper root certificate.
Select Download in the Remote UI.
Downloading the root certificate is started and then Install Profile screen is displayed.
Select Install.
Warning screen is displayed.
If a password is set on your device, entering a password may be required.
Select Install.
Select Install in the displayed dialog.
The root certificate registration is completed.
If your product issue was not resolved after following the steps above, or if you require additional help, please create or log in to your Canon Account to see your technical support options.
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