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Messages Explanation
Connection test was successful. This message appears when the connection with the server is successful.
SMTP server communication error.
Check the following. - Network
Settings
This message appears when
The printer is not connected to a network
SMTP server is down
Network connection is disconnected while communicating
Received incomplete data
POP3 server communication error.
Check the following. - Network
Settings
This message appears when
The printer is not connected to a network
POP3 server is down
Network connection is disconnected while communicating
Received incomplete data
An error occurred while connecting to
SMTP server. Check the followings. -
SMTP Server Address - DNS Server
This message appears when
Connecting to a DNS server failed
Name resolution for an SMTP server failed
An error occurred while connecting to
POP3 server. Check the followings. -
POP3 Server Address - DNS Server
This message appears when
Connecting to a DNS server failed
Name resolution for an POP3 server failed
SMTP server authentication error.
Check the followings. - Authentication
Method - Authenticated Account -
Authenticated Password
This message appears when SMTP server authentication failed.
POP3 server authentication error.
Check the followings. - Authentication
Method - Authenticated Account -
Authenticated Password
This message appears when POP3 server authentication failed.
Unsupported communication method.
Check the followings. - SMTP Server
Address - SMTP Server Port Number
This message appears when you try to communicate with unsupported protocols.
Connection to SMTP server failed.
Change Secure Connection to None.
This message appears when an SMTP mismatch occurs between a server and a
client, or when the server does not support SMTP secure connection (SSL
connection).
Connection to SMTP server failed.
Change Secure Connection to SSL/TLS.
This message appears when an SMTP mismatch occurs between a server and a
client, or when the server requests to use an SSL/TLS connection for an SMTP
secure connection.
Connection to SMTP server failed.
Change Secure Connection to
STARTTLS.
This message appears when an SMTP mismatch occurs between a server and a
client, or when the server requests to use an STARTTLS connection for an SMTP
secure connection.
The connection is untrusted. Check the
following. - Date and Time
This message appears when the printers date and time setting is incorrect or the
certicate
has expired.
The connection is untrusted. Check the
following. - CA
Certicate
This message appears when the printer does not have a root certicate
corresponding to the server or a CA
Certicate
has not been imported.
The connection is not secured. This message appears when the obtained certicate is damaged.
User's Guide
Appendix
221
221


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  • MY EPSON WORK FORCE PRO-WF 4720 DOES NOT PRINT ALL OF A STATEMENT.
    Submitted on 6-6-2022 at 22:44

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