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Printing Process 

Dry Electrostatic Transfer with Dry Dual
Component Magnetic Brush Development
System; 4-Drum Method

Output Speed

MP C2051: 20-ppm BW & Full-Color;

(Copy/Print)

MP C2551: 25-ppm BW & Full-Color

Warm-Up Time

Less than 22 seconds (from Power On)
Less than 10 seconds (from Sleep Mode)

First Copy Time

Full-Color: 9.2 seconds; BW: 6.4 seconds

Copy Resolution

600 x 600 dpi

Document Feeder

Automatic Reversing Document Feeder

(Standard)

(ARDF)

Original Capacity

50 sheets

Paper Size

5.5" x 8.5" to 11" x 17"

Paper Weight

Simplex: 11 lb. to 34 lb. Bond 
(40 – 128 g/m

2

);

Duplex: 14 lb. to 28 lb. Bond 
(52 – 105 g/m

2

)

Exposure Glass

Up to 11" x 17"

Quantity Indicator

Up to 999 copies

Copy Size

Up to 11" x 17"

Input Capacity

Standard: 2 x 250 sheets + 
100-Sheet Bypass Tray;
Maximum: 1,600 sheets

Output Capacity 

Standard: 500 sheets (Letter); 
250 sheets (Legal/Ledger); 
Maximum: 650 sheets (with 500-Sheet
std. Exit Tray, 50-Sheet Side Tray and
100-Sheet One-Bin Tray)

Paper Sizes

Standard Tray 1 and Tray 2: 7.25" x 10.5"
to 11" x 17"; 
Custom Sizes (Tray 1 and Tray 2): 7.17" x
5.83" (182 x 148 mm) to 11.69" x 17"
(297 x 432 mm); 
Bypass Tray: 5.83" x 3.55" to 23.62" x 12"
(305 x 600 mm)

Paper Weights 

Standard Tray #1: 16 – 68 lb. Bond/
140 lb. Index (60 – 256 g/m

2

); 

Standard Tray #2: 16 – 45 lb. Bond/
90 lb. Index (60 – 169 g/m

2

); 

Bypass Tray: 14 – 68 lb. Bond/140 lb. Index
(52 – 256 g/m

2

); 

Duplex Unit: 16 – 28 lb. Bond 
(60 – 105 g/m

2

)

Paper Types 

Plain paper, laser printer qualified
transparencies, labels and envelopes

Auto Duplex

Standard

Zoom Preset

25% – 400% in 1% increments; 93%, 

Reduction and 

85%, 78%, 73%, 65%, 50%, 25% and

Enlargement Ratios 400%, 200%, 155%, 129%, 121%

Dimensions (WxDxH) 23.2" x 26.7" x 33.3" 

(587 x 676 x 845 mm)

Weight

220.5 lbs. (100 kg)

Power Requirements 120V, 60Hz, 12A
Power Consumption 1600 Watts or less
TEC Value*

MP C2051: 1.00kWh
MP C2551: 1.27kWh

*Tested in accordance with US EPA TEC Test Procedure.

Auto Color Selection (ACS), Auto/Manual Density Control, Copy
Mode – Photo Type Selection (Printed, Glossy, & Copied Photo),
Combine Mode, Shift/Erase/Margin, Cover/Slip/Chapter Sheets,
Color Creation Modes, Image Creation Modes, Stamps/Numbering,
Color Adjustment, Image Adjustment, Image Rotation, Job
Program (10), User Codes (500), Job Preset (8), Sample Copy,
Batch Mode, Quota Settings & SADF Mode

Standard DataOverwriteSecurity Unit (DOSS) Type I –
Security feature that overwrites latent data on the system’s hard
drive after copy, scan, fax and print jobs.

Standard HDD Encryption Unit Type A – This function
encrypts the system’s hard drive using 256 bits (AES) to protect
against data theft.
Other Security Features – SNMP v3 and Data Encryption
(password/address book); Locked (Secure) Print; User Codes;
Basic Authentication; WPA (Wi-Fi Protect Access Support); IPsec
Communication; Windows/LDAP/Kerberos Authentication; 802.1x
Wired Authentication; SSL Communication; SSL over SMTP; S/MIME;
Network Protocol On/Off; IP Filtering (Access Control) and more

CPU

Mobile Intel Celeron Processor @ 600MHz

Memory

1.5 GB RAM (Maximum) & 160 GB HDD
Standard (Shared)

Max. Print Speed

MP C2051: 20-ppm BW & Full-Color; 
MP C2551: 25-ppm BW & Full-Color

Page Description

PCL5c, PCL6, XPS; Genuine Adobe

®

Languages

PostScript

®

3

™

(Optional), Includes PDF

Direct Print

Max. Print Resolution 1200 x 1200 dpi
Standard Interfaces 10Base-T/100Base-TX Ethernet (RJ-45),

USB 2.0/SD Slot, USB 2.0 Host I/F

Optional Interfaces  IEEE 802.11a/b/g Interface Unit Type J,

IEEE 1284 Interface Board Type A,
Gigabit Ethernet Type B

Network Protocols

TCP/IP (IPv4, IPv6), IPX/SPX

Fonts for PCL

45 Intellifonts, 13 International Fonts

Fonts for PS3

136 Roman

Network Operating Windows 2000/XP/Vista/7/Server 2003/

Systems

Server 2008/Server 2008R2, Novell
NetWare 3.12,3.2,4.1,4.11,5.0,5.1,6,6.5
or later, UNIX

1

filters for Sun Solaris, 

HP-UX, SCO OpenServer, RedHat Linux,
and IBM AIX, MAC OS X v10.2 or later;
SAP R/3, NDPS Gateway, IBM iSeries
AS/400 using OS/400 Host Print Transform

Utilities

SmartDeviceMonitor for Admin and
Client, Web SmartDeviceMonitor, 
Web Image Monitor

1

For UNIX support, visit www.ricoh-usa.com/downloads.

Sample/Hold/Stored and Locked Print, Classification Code,
PANTONE

®

Color Palette, Black Over Print, CLP Simulation,

PictBridge

™

Support, WSD Printer, Bonjour Support

Scanner Resolution From 100 to 600 dpi (1200 dpi for TWAIN);

Default Setting: 200dpi

Scanning Speed

44-ipm BW; 44-ipm Full-Color 
(@200 dpi via ARDF)

Scan Area

Main Scan: 11.7" (297 mm), 
Sub Scan: 17" (432 mm)

Scan Size 

Contact Glass: 11" x 17", 8.5" x 14",
8.5" x 11", 5.5" x 8.5"

Compression

BW: TIFF (MH, MR, MMR), Grayscale;

Method

Full-Color: JPEG

Scan Mode

Standard: BW Text/Line Art, BW Text, 
BW Text/Photo, BW Photo, BW Grayscale,
FC Text/Photo, FC Photo

Scan-to Modes

Scan-to-Email (with LDAP support); 

Supported

Scan-to-Folder (SMB/FTP/NCP); Scan-to-URL;
Network TWAIN Scanning; Scan-to-Media
(USB/SD, optional); WSD Scanner (for Vista)

Capacity

160 GB (shared with other functions)

Max. Stored

2,000 documents

Documents

Max. Pages per

1,000 pages

Document

Max. Pages of all

6,000 Pages

Stored Documents

Fax Option Type C2551 
Type

ITU-T (CCITT) G3

Circuit

PSTN, PBX

Resolution

200 x 100 dpi, 200 x 200 dpi, 400 x 
400 dpi (with optional SAF memory)

Modem Speed

33.6K – 2,400bps with Automatic Shift
Down

Compression Method MH, MR, MMR, JBIG
Transmission Speed G3: Approx. 2 seconds/page (w/JBIG

compression); G3: Approx. 3 seconds/
page (w/MMR compression)

Scan Speed 

40 pages/minute (Standard Mode); 
38 pages/minute (Detail Mode); 
20 pages/minute (Super Fine Mode)

Auto Dialing

2,000 Quick Dials, 100 Group Dials 
(200 locations each)

Memory Capacity 

4 MB (approx. 320 pages); 
Maximum 28 MB (approx. 2,240 pages)

Additional Modes

Internet Fax (T.37), IP Fax (T.38), LAN Fax,
Fax Forward to E-mail/Folder, LDAP Support,
Detection of Misplaced Documents &
Double Check Destination

Options 

Handset Type 1018, Memory Unit Type B
32MB (SAF Memory)

Paper Feed Unit (PB3070)
Paper Capacity

500 sheets x 1 Tray

Paper Sizes

7.25" x 10.5" to 11" x 17"

Paper Weights

16 – 28 lb. Bond (60 – 105 g/m

2

)

Dimensions (WxDxH) 21.7" x 20.5" x 5.4" 

(550 x 520 x 137 mm)

The Caster Table is required with the 500 x 1 Paper Feed Unit (PB3070).

Paper Capacity

500 sheets x 2 Trays

Paper Sizes

7.25" x 10.5" to 11" x 17"

Paper Weights

16 – 28 lb. Bond (60 – 105 g/m

2

)

Dimensions (WxDxH) 21.7" x 20.5" x 10.7" 

(550 x 520 x 271 mm)

Envelope Feeder Tray (EF3010)
Paper Sizes

5.5" x 8.5" to 11" x 17"
Com10, Monarch, C5, C6 DL 
Envelope

Paper Weight

14 – 68 lbs. Bond (60 – 256 g/m

2

)

Paper Capacity

250 sheets (8.5" x 11" to 11" x 17")
150 sheets (5.5" x 8.5")
Approximately 40 envelopes 
(depending on envelope thickness/quality)

Internal 500-Sheet Finisher Type C2550
Paper Weights

14 – 34 lb. Bond (52 – 128 g/m

2

)

Stack Capacity

500 sheets (8.5" x 11") 
250 sheets (8.5" x 14" or larger)

Staple Capacity

50 sheets (8.5" x 11") 
30 sheets (8.5" x 14" or larger)

Staple Paper Sizes

7.25" x 10.5" to 11" x 17"

Staple Positions

Landscape: Top Left Corner, Bottom Left
Corner, 2-Top Sided, and 2-Left Sided;
Portrait: Top Left Corner, Bottom Left
Corner, 2-Top Sided, and 2-Left Sided

Dimensions (WxDxH) 19.5" x 20.7" x 8.4" 

(495 x 525 x 214 mm)

2/3-Hole Punch Unit Option (PU3010NA) available for Internal Finisher.

Internal Shift-Sort Tray (SH3030)
Paper Sizes

5.5" x 8.5" to 12" x 18"

Paper Capacity

250 sheets

Paper Weights

14 – 68 lb. Bond/140 lb. Index 
(52 – 256 g/m

2

)

Dimensions (WxDxH) 16.9" x 18.8" x 4.2" 

(431 x 477.5 x 107 mm)

Internal Shift-Sort and/or Inner One-Bin Tray cannot be installed with the 
500-Sheet Internal Finisher.

Inner One-Bin Tray (BN3060)
Paper Sizes

5.5" x 8.5" to 11" x 17"

Bin Capacity

100 sheets

Paper Weights

16 – 28 lb. Bond (60 – 105 g/m

2

)

Dimensions (WxDxH) 16.9" x 19.6" x 4.4" 

(429 x 497 x 113 mm)

Side Tray Type C2550
Paper Sizes

5.5" x 8.5" to 11" x 17"

Paper Capacity

50 sheets

Paper Weights

16 – 28 lb. Bond (60 – 105 g/m

2

)

Dimensions (WxDxH) 18.9" x 18.9" x 6.7" 

(480 x 480 x 170 mm)

1

Please note either the Cabinet Stand or one of the paper options must 
be installed.

Caster Table Type B, PostScript3 Unit Type C2551, Camera
Direct Print Card Type I, Key Counter Bracket Type H, File Format
Converter Type E, Optional Counter Interface Unit Type A, 
USB 2.0/SD Slot Type G, Handset Type 1018, IEEE802.11 a/b/g
Wireless Interface Type J, HotSpot Printing, and more

Black Toner

10K

Cartridge

Cyan, Magenta &

5.5K or 9.5K

Yellow Toner 
Cartridge

*Toner yields based on 5% coverage.

For maximum performance and yield, we recommend using
genuine Ricoh parts and supplies.

Ricoh Americas Corporation, Five Dedrick Place, West Caldwell, NJ 07006
Ricoh

®

and the Ricoh Logo are registered trademarks of Ricoh Company, Ltd. All other trademarks are the property of their respective owners. The content of this document, and the appearance,

features and specifications of Ricoh products and services are subject to change from time to time without notice. Products are shown with optional features. While care has been taken to ensure the
accuracy of this information, Ricoh makes no representation or warranties about the accuracy, completeness or adequacy of the information contained herein, and shall not be liable for any errors or
omissions in these materials. Actual results will vary depending upon use of the products and services, and the conditions and factors affecting performance. The only warranties for Ricoh products
and services are as set forth in the express warranty statements accompanying them.