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Ricoh SP C252DN User Manual

Ricoh SP C252DN
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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
[Host Interface] on the control panel, and then access Web Image Monitor.
For details about specifying the IPsec settings using Web Image Monitor, see page 101
"Configuring the Machine Using Web Image Monitor".
For details about disabling IPsec using the control panel, see page 92 "Host Interface Menu".
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.
8. Appendix
178

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Ricoh SP C252DN Specifications

General IconGeneral
ColorYes
Print technologyLaser
Time to first page (black, normal)14 s
Print speed (black, normal quality, A4/US Letter)20 ppm
Printing colorsBlack, Cyan, Magenta, Yellow
Maximum duty cycle65000 pages per month
Number of print cartridges4
Page description languagesPCL 5c, PCL 6, PostScript 3
Total input capacity251 sheets
Total output capacity- sheets
Maximum input capacity751 sheets
Duplex media weight60 - 90 g/m²
Paper tray media typesBond paper, Card stock, Envelopes, Labels, Plain paper, Pre-Printed, Recycled paper, Thick paper, Thin paper
Paper tray media weight60 - 160 g/m²
ISO A-series sizes (A0...A9)A4, A5, A6
ISO B-series sizes (B0...B9)B5, B6
Multi-purpose tray media typesLetterhead
Maximum ISO A-series paper sizeA4
Network ready-
Wi-Fi standards802.11b, 802.11g, Wi-Fi 4 (802.11n)
Standard interfacesEthernet, USB 2.0, Wireless LAN
USB 2.0 ports quantity1
Processor familyIntel® Celeron® M
Processor frequency350 MHz
Maximum internal memory- MB
Product colorBlack, White
AC input voltage220 - 240 V
AC input frequency50 Hz
Power consumption (max)1300 W
Power consumption (printing)- W
Power consumption (PowerSave)3.8 W
Sustainability certificatesENERGY STAR
Mac operating systems supportedMac OS X 10.6 Snow Leopard, Mac OS X 10.7 Lion, Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 Mavericks
Server operating systems supportedWindows Server 2008, Windows Server 2008 R2, Windows Server 2012
Windows operating systems supportedWindows 7 Home Basic, Windows 7 Home Basic x64, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows Vista Business, Windows Vista Business x64, Windows Vista Enterprise, Windows Vista Enterprise x64, Windows Vista Home Basic, Windows Vista Home Basic x64, Windows Vista Home Premium, Windows Vista Home Premium x64, Windows Vista Ultimate, Windows Vista Ultimate x64, Windows XP Home, Windows XP Home x64, Windows XP Professional, Windows XP Professional x64
Weight and Dimensions IconWeight and Dimensions
Depth450 mm
Width400 mm
Height320 mm

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