Epson WF-C878R Series User Manual

Using a Digital Certicate
About Digital Certication
❏ CA-signed Certicate
is is a certicate signed by the CA (Certicate Authority.) You can obtain it to apply to the Certicate
Authority. is certicate certies the existence of the printer is and used for SSL/TLS communication so that
you can ensure the safety of data communication.
When it is used for SSL/TLS communication, it is used as a server certicate.
When it is set to IPsec/IP Filtering or IEEE802.1x communication, it is used as a client certicate.
❏ CA Certicate
is is a certicate that is in chain of the CA-signed Certicate, also called the intermediate CA certicate. It is
used by the web browser to validate the path of the printer's certicate when accessing the server of the other
party or Web Cong.
For the CA Certicate, set when to validate the path of server certicate accessing from the printer. For the
printer, set to certify the path of the CA-signed Certicate for SSL/TLS connection.
You can obtain the CA certicate of the printer from the Certication Authority where the CA certicate is
issued.
Also, you can obtain the CA certicate used to validate the server of the other party from the Certication
Authority that issued the CA-signed Certicate of the other server.
❏ Self-signed Certicate
is is a certicate that the printer signs and issues itself. It is also called the root certicate. Because the issuer
certies itself, it is not reliable and cannot prevent impersonation.
Use it when making the security setting and performing simple SSL/TLS communication without the CA-
signed Certicate.
If you use this certicate for an SSL/TLS communication, a security alert may be displayed on a web browser
because the certicate is not registered on a web browser. You can use the Self-signed Certicate only for an
SSL/TLS communication.
Related Information
& “Conguring a CA-signed Certicate” on page 499
& “Updating a Self-signed Certicate” on page 503
& “Conguring a CA Certicate” on page 503
Conguring
a CA-signed
Certicate
Obtaining a CA-signed Certicate
To obtain a CA-signed certicate, create a CSR (Certicate Signing Request) and apply it to certicate authority.
You can create a CSR using Web Cong and a computer.
Follow the steps to create a CSR and obtain a CA-signed
certicate
using Web
Cong
. When creating a CSR using
Web Cong, a certicate is the PEM/DER format.
Administrator Information > Advanced Security Settings > Using a Digital Certicate
499

Epson WF-C878R Series Specifications

General

Print Technology	PrecisionCore Heat-Free Technology
Max Print Resolution	4800 x 1200 dpi
Duplex Printing	Yes
Connectivity	USB, Ethernet, Wi-Fi, Wi-Fi Direct
Max Scan Resolution	1200 x 2400 dpi
Fax	Yes
Print Speed (Black)	25 ppm (ISO)
Print Speed (Color)	24 ISO ppm
Scanner Type	Flatbed, ADF
Paper Formats	A4, A5, A6, B5, Letter, Legal
Display	4.3" color touchscreen
Mobile Printing	Apple AirPrint, Mopria Print Service
Ink Type	DURABrite Ultra pigment ink
Ink Cartridges	Black, Cyan, Magenta, Yellow