The A4/A3 colour MFP that adds value and versatility to small workgroups

MC851_Overview_sideAffordable A3/A4 versatility

Based on award winning technology, the MC851 makes versatile A3/A4 printing, scanning, photocopying and faxing accessible to every business with a low print volume requirement.

The MC851 comes at a highly competitive price, enabling budget conscious businesses to produce in-house, high quality, professional documents in rich high definitiion colour, reducing outsourced print costs and providing the ability to print what you need, when you need it.

Adding value to your business

The MC851 is ergonomically designed and packed full of useful features, offering everything a business needs from a multifunctional device, including:

  • duplex printing as standard
  • flexible media handling from CD labels, business cards and banners to standard, day-to-day business documents
  • one touch Copy, Scan, Print and Fax buttons
  • scan to USB stick, client, email or network PC
  • fax directly from a PC or forward incoming faxes to a PC
  • embedded LDAP provides diredt access to contact and email data in an existing directory file 
  • a Job Interrupt function to allow printing to be paused whilst urgent documents are copied, scanned or faxed
  • Job Programs allows users define frequently used set-up functions to save time
  • three year warranty as standard to protect your investment 

Reliable, tried and tested technology

Using award winning, tried and tested digital LED printing technology, the MC851 is reliable and robust, offering high quality scanning and A4 print speeds of up to 34ppm mono and 22ppm colour in high definition.

Intuitive management and control tools

The MC851 includes a wide range of in-the-box software utilities to help you manage and improve productivity whilst reducing your support costs. For example, control your print usage and user access rights, streamline your document handling and assist with file sharing or archiving. Find out more about the in-the-box software utilities.


Full specifications

Key Features

  • Description A3/A4 colour 4-in-1 MFP
  • Number of users 1 to 20


  • Print Speed A4: 22ppm colour, 34ppm mono; A3: 12ppm colour, 17ppm mono
  • Time to first print (TTFP) 11.5 seconds colour, 9.5 seconds mono
  • Warm up time 90 seconds or less from power on
  • Processor speed PowerPC750 500MHz

Interface and Software

  • Connectivity Hi-Speed USB, 10/100-TX Ethernet, Parallel Port
  • Printer language PCL 5c, PCL 6 (Windows), PostScript (Windows/Mac)
  • Network & protocols 10Base-T/100Base-TX Ethernet Card with internal Web Server for printer and network card set-up and management. Includes POP3/APOP and SMTP Mail client for submission of print jobs and for alerts. All major network protocols supported - TCP/IP:- ARP, RARP, IPv4/v6, ICMPv4/v6, TCP, UDP, LPR, FTP, TELNET, HTTP(IPP), BOOTP, DHCP, SNMPv1/v3, DNS, DDNS, UPnP, Bonjour, WINS, SSL/TLS, SMTP, POP3, SNTP, WSDPrint, JetDirect protocols, NetBIOSoverTCP, Kerberos. NetWare 3.x, 4.x, 5.x & 6 with full NDS and NDPS support:- PServer, RPrinter, NDPS supported via dedicated OKI NDPS Gateway. Ethertalk:- ELAP, AARP, DDP, AEP, NBP, ZIP, RTMP, ATP, PAP. NetBEUI:- SMB, NetBIOS. Other:- EAP.
  • OS Compatibility Windows 2000 / XP (32-bit & 64-bit) / Server 2003 (32-bit & 64-bit) / Server 2008 (32-bit & 64-bit) / Server 2008 R2 / Vista (32-bit & 64-bit) / 7 (32-bit & 64-bit); Mac OS X 10.3.9 or greater
  • Advanced networking and security IPv6, 802.1x authentication, IPSec, SNMPv3, SSL3/TLS HTTPS encryption, Secure Erase, Data Encryption, MAC filtering, IP filtering, Secure Print
  • Utilities Color Correct, OKI LPR,, Swatch Utility, Template Manager, Web Driver Installer, WebPrint, Print, Control Server, Print Control Client, Print Control Report Tool, Storage Device Manager, Gamma Utility, Profile Assistant, PDF Direct Utility, Configuration Tool, Actkey
  • Document management Nuance PaperPort SEv11, Nuance OmniPage SEv16

Print quality

  • Resolution ProQ2400 Multi-level technology, 1200 x 600dpi
  • Enhancements Auto Colour Balance, Photo Enhance via Driver (Windows only)


  • Printer fonts Scalable: 86 PCL fonts & 136 PostScript fonts, PCL Bitmap fonts, OCR-A/B, USPS ZIP Barcode

Operator panel

  • LCD panel 14.5cm back-lit touch-screen
  • Key pad 12 numeric, 4 main function buttons, Color & Mono Start, Setup, Job Programs, Reports, Reset, Help, Power Save, Interrupt Key, Fax Job View/Cancel & Stop Key


  • Scan Resolution 600 x 600dpi
  • Scan Speed Up to 34spm
  • Colour depth Output 24-bit (8-bit x 3 RGB)
  • Document input 50-sheet Reverse Automatic Document Feeder (RADF)
  • Contrast 7 Levels
  • Format PDF, TIFF, JPEG, XPS
  • Addressbook LDAP & internal address book
  • Scan to Folder (CIFS), E-Mail, FTP, HTTP, USB Memory


  • First copy out time (FCOT) 16 seconds colour, 13 seconds mono
  • Copy speed 22cpm colour, 34cpm mono
  • Copy resolution 600dpi
  • Reduction/Enlargement Zoom 25-400%
  • Maximum copies 999


  • Fax connectivity RJ11 x 2 (Line/Tel), PSTN, PBX
  • Fax speed ITU-T G3 (Super G3) 33.6kbps
  • Speed dials 500
  • Groups 32
  • Broadcast Up to 530
  • Fax memory 16MB (approx 1,000 pages)

Paper Handling

  • Paper capacity Tray 1: 300 sheets of 80gsm; Multi-purpose tray: 100 sheets of 80gsm; RADF: 50 sheets of 80gsm
  • Paper capacity optional tray 2nd tray + tall cabinet: 530 sheets of 80gsm (Standard on MC851cdtn); 2nd/3rd tray + short cabinet: 1,060 sheets of 80gsm (Standard on MC851cdxn)
  • Maximum paper capacity MC851dn: 400 sheets of 80gsm; MC851cdtn: 930 sheets of 80gsm; MC851cdxn: 1,460 sheets of 80gsm
  • Paper sizes Tray 1: A3, B4, A4, A5, B5, A6; Tray 2/3: A3, B4, A4, A5, B5; Multi-purpose tray: A3, B4, A4, B5, A5, A6, Envelopes (Com10, DL, C4, C5), Labels (Avery 7162, 7664, 7666), Transparencies, Custom size: Width 64-297mm Length 105-1200mm; RADF: A3, A4, A5, B4, B5; Duplex: A3, A4, A5, B4, B5, Custom size: Width 148.5-297mm Length: 182-431.8mm
  • Paper weight Tray 1: 64 to 120gsm; Tray 2/3: 64 to 176gsm; Multi-purpose tray: 64 to 200gsm; RADF: 42 to 128gsm; Duplex: 64 to 105gsm
  • Duplex Standard
  • Paper output 250 sheets face down, 100 sheets face up

General Features

  • Memory (RAM) Standard: 512MB (2 x 256MB); Maximum: 768MB (1 x 256MB, 1 x 512MB)
  • Memory (Hard Disk Drive) 40GB
  • Operating temperature/ humidity 10°C to 32°C (17°C to 27°C recommended) / 20% to 80% RH (50% to 70% RH recommended)
  • Storage temperature/ humidity -10°C to 43°C / 10% to 90% RH
  • Power supply Single phase 220–240VAC, frequency 50/60Hz +/- 2%
  • Power consumption Typical: 700W; Peak: 1300W; Idle: 160W; Power Save: <25W
  • Noise level Operating: 54dB(A) or less, Standby: 37dB(A) or less, Power save: Background
  • Dimensions (HxWxD) MC851dn: 669 x 565 x 658mm; MC851cdtn: 1130 x 845 x 766mm; MC851cdxn: 1130 x 845 x 766mm
  • Weight MC851dn: 68kg; MC851cdtn: 95kg; MC851cdxn: 100kg (includes all consumables)
  • Duty cycle (Maximum) 60,000 pages/month
  • Duty cycle (Recommended) Up to 8,000 pages/month
  • Warranty 3 years extended warranty upon registration within 30 days of purchase