Using Digital Certificates
The authentication feature using digital certificates upgrades security when sending print data or setting data.
To use digital certificates, set the digital certificate on the printer, and then enable various SSL/TLS communication.
NOTE:
•
For information about the digital certificate error, see "Understanding Printer Messages" on page 159 and "Digital Certificate
Problems" on page 157.
Setting a Digital Certificate
The following is the setup flow for setting digital certificates.
Prepare the printer for HTTPS Communication using a
self-signed certificate. For details, see "Preparing to
Use HTTPS Communication" on page 128.
Export the Certificate Signing Request (CSR) from the
printer. For details, see "Exporting a Certificate Signing
Request (CSR)" on page 129.
Receive a signed certificate from a certificate authority using the Certificate Signing Request (CSR) exported from the printer.
Upload a signed certificate. For details, see "Uploading a Signed Certificate" on page 129.
Preparing to Use HTTPS Communication
Before managing certificates, set HTTPS communication with a self-signed certificate.
1
Launch the CentreWare Internet Services by entering IP address of the printer in your web browser.
For more information, see "CentreWare Internet Services" on page 25.
2
3
4
Click the
Properties
tab.
Click
SSL/TLS Server Communication
under
Security
.
Click
Create New Certificate
.
The
Generate Certificate
page is displayed.
5
6
7
Select the size of the public key from the list of
Public Key Size
.
Specify the issuer of SSL self-signed certificate.
Click
Generate Certificate
.
Your request was successfully processed.
is displayed.
8
9
Click
Back
.
Select the
Enabled
check box of
SSL/TLS Server Communication
, and then click
Apply
.
Settings have been changed. Reboot system for new settings to take effect.
is displayed.
10
Click
Reboot Machine
.
128
Digital Certificates
2
3
4
7
8
5
6
Exporting a Certificate Signing Request (CSR)
NOTE:
• To export a CSR from the printer,
SSL/TLS Server Communication
must be enabled with a self-signed certificate. For
details, see "Preparing to Use HTTPS Communication" on page 128.
1
Launch the CentreWare Internet Services by entering IP address of the printer in your web browser.
For more information, see "CentreWare Internet Services" on page 25.
Click the
Properties
tab.
Click
SSL/TLS Server Communication
under
Security
.
Click
Certificate Signing Request (CSR)
.
The
Certificate Signing Request (CSR)
page is displayed.
Specify each item of certificate signing request.
Click
Apply
.
Confirm the settings of certificate signing request, and then click
Export
.
Save a CSR file to your computer.
Use this CSR to receive a signed certificate from a trusted certificate authority.
2
3
4
7
8
5
6
Uploading a Signed Certificate
After you have received the signed certificate from a trusted certificate authority, upload the certificate to the printer.
1
Launch the CentreWare Internet Services by entering IP address of the printer in your web browser.
For more information, see "CentreWare Internet Services" on page 25.
Click the
Properties
tab.
Click
SSL/TLS Server Communication
under
Security
.
Click
Upload Signed Certificate
.
The
Upload Signed Certificate
page is displayed.
Enter a password.
Re-enter the password again to confirm it.
Click
Browse
of
File Name
, and select the file to be imported.
Click
Import
.
Digital Certificates
129
Managing the Digital Certificate
NOTE:
•
To manage digital certificates, you must have a digital certificate set on the printer. For details, see "Setting a Digital
Certificate" on page 128.
Confirming the Settings of a Digital Certificate
1
2
3
4
Launch the CentreWare Internet Services by entering IP address of the printer in your web browser.
For more information, see "CentreWare Internet Services" on page 25.
Click the
Properties
tab.
Click
SSL/TLS Server Communication
under
Security
.
Click
Certificate Management
.
The
Certificate Management
page is displayed.
Deleting a Digital Certificate
1
5
6
2
3
4
Launch the CentreWare Internet Services by entering IP address of the printer in your web browser.
For more information, see "CentreWare Internet Services" on page 25.
Click the
Properties
tab.
Click
SSL/TLS Server Communication
under
Security
.
Click
Certificate Management
.
The
Certificate Management
page is displayed.
Click
Delete
at the upper-right corner.
Click
Delete
.
NOTE:
• When a certificate is deleted, the features associated with the deleted certificate are disabled. To delete a certificate being used, disable the feature in advance or switch the association to another certificate, and then switch to another operation mode if possible before deleting the certificate.
For an SSL Server, switch to another certificate such as a self-signed certificate.
130
Digital Certificates
Setting the SSL/TLS Communication Feature
2
3
4
Setting SSL/TLS Server Communication
Set the SSL/TLS Server Communication to use encrypted communication between HTTP and SMTP servers.
1
5
6
7
Launch the CentreWare Internet Services by entering IP address of the printer in your web browser.
For more information, see "CentreWare Internet Services" on page 25.
Click the
Properties
tab.
Click
SSL/TLS Server Communication
under
Security
.
Confirm that the
Enabled
check box of
SSL/TLS Server Communication
is displayed.
NOTE:
• If
Disabled
is displayed instead of a check box, the certificate is not set. For details, see "Setting a Digital Certificate" on page 128.
Select the
Enabled
check box of
SSL/TLS Server Communication
.
Click
Apply
.
Settings have been changed. Reboot system for new settings to take effect.
is displayed.
Click
Reboot Machine
.
After restarting the printer, communication is encrypted when communicating with HTTP or SMTP.
Digital Certificates
131
Troubleshooting
•
•
•
•
•
•
•
•
•
•
•
•
•
•
"Clearing Jams" on page 133
"Basic Printer Problems" on page 140
"Display Problems" on page 141
"Printing Problems" on page 142
"Print Quality Problems" on page 143
"Adjusting Color Registration" on page 152
"Wireless Problems" on page 155
"Wi-Fi Direct Problems" on page 156
"Digital Certificate Problems" on page 157
"Other Problem" on page 158
"Understanding Printer Messages" on page 159
"Contacting Service" on page 162
"Getting Help" on page 163
"Non-Genuine Mode" on page 164
8
132
Troubleshooting
