Ricoh SP C252SF User Manual

Transmission Using IPsec
For securer communications, this machine supports the IPsec protocol. When applied, IPsec encrypts
data packets at the network layer using shared key encryption. The machine uses encryption key
exchange to create a shared key for both sender and receiver. To achieve even higher security, you can
also renew the shared key on a validity period basis.
• IPsec is not applied to data obtained through DHCP, DNS, or WINS.
• IPsec compatible operating systems are Windows XP SP2, Windows Vista/7, Windows Server
2003/2003 R2/2008/2008 R2, Mac OS X 10.6 and later, Red Hat Enterprise Linux WS 4.0,
and Solaris 10. However, some setting items are not supported depending on the operating
system. Make sure the IPsec settings you specify are consistent with the operating system's IPsec
settings.
• If you cannot access Web Image Monitor due to IPsec configuration problems, disable IPsec under
[Admin. Tools] on the control panel, and then access Web Image Monitor.
• For details about specifying the IPsec settings using Web Image Monitor, see page 233
"Configuring the Machine Using Web Image Monitor".
• For details about disabling IPsec using the control panel, see page 228 "Administrator Settings".
Encryption and Authentication by IPsec
IPsec consists of two main functions: the encryption function, which ensures the confidentiality of data,
and the authentication function, which verifies the sender of the data and the data's integrity. This
machine's IPsec function supports two security protocols: the ESP protocol, which enables both of the
IPsec functions at the same time, and the AH protocol, which enables only the authentication function.
ESP Protocol
The ESP protocol provides secure transmission through both encryption and authentication. This
protocol does not provide header authentication.
• For successful encryption, both the sender and receiver must specify the same encryption
algorithm and encryption key. The encryption algorithm and encryption key are specified
automatically.
• For successful authentication, the sender and receiver must specify the same authentication
algorithm and authentication key. The authentication algorithm and authentication key are
specified automatically.
Transmission Using IPsec
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Ricoh SP C252SF Specifications

General

Digital sender	-
Maximum duty cycle	65000 pages per month
Page description languages	PCL 5c, PCL 6, PostScript 3
Duplex printing	Yes
Print technology	Laser
Maximum resolution	2400 x 600 DPI
Time to first page (black, normal)	14 s
Print speed (black, normal quality, A4/US Letter)	20 ppm
Processor family	Intel® Celeron® M
Processor frequency	400 MHz
AC input voltage	220 - 240 V
AC input frequency	50 - 60 Hz
Power consumption (max)	1300 W
Power consumption (average operating)	- W
Copier resize	25 - 400 %
Maximum copy resolution	600 x 600 DPI
Maximum number of copies	99 copies
Faxing	Color faxing
Modem speed	33.6 Kbit/s
Fax coding methods	JBIG, MH, MMR (Fax coding method), MR
Fax resolution (black)	200 x 100 DPI
Paper tray media types	Bond paper, Card stock, Envelopes, Labels, Letterhead, Plain paper, Pre-Printed, Recycled paper, Thick paper, Thin paper
ISO A-series sizes (A0...A9)	A4, A5, A6
ISO B-series sizes (B0...B9)	B5, B6
Maximum ISO A-series paper size	A4
Total input capacity	251 sheets
Total output capacity	150 sheets
Maximum input capacity	751 sheets
Standard interfaces	Ethernet, USB 2.0, Wireless LAN
Wi-Fi standards	802.11b, 802.11g, Wi-Fi 4 (802.11n)
Cabling technology	10/100Base-T(X)
Ethernet LAN data rates	10, 100 Mbit/s
Scan to	E-mail, File
Scan drivers	TWAIN
Scanner type	ADF scanner
Image formats supported	JPG
Document formats supported	PDF
Optical scanning resolution	1200 x 1200 DPI
Product color	Black, White
Market positioning	Business

Weight and Dimensions

Depth	493 mm
Width	420 mm
Height	460 mm