Light, compact and fast, the MS331dn supports output of up to 38 pages per minute, multiple connectivity options and an optional 550-sheet paper tray.
Solid performance, flexible connectivity
Get your first page as fast as 6.2 seconds, and power through challenging jobs with a 1-GHz dual-core processor and 256 MB of memory. Connect via USB or Ethernet to give your whole team access.
Full-spectrum security
Lexmark's comprehensive approach to product security is a design and engineering mandate across our entire product portfolio. Our security features help to keep your information safe
– in the document, on the device, over the network and at all points in between.
Hands-off durability
With its steel frame and lifetime fuser, the MS331dn is built to last.
Save paper, save energy
Automatic two-sided printing is standard, along with built-in energy-saving modes that help to support ratings of EPEAT Silver and ENERGY STAR certified. The Lexmark Cartridge Collection Programme (LCCP) and Lexmark Equipment Collection Programme (LECP) minimise waste and support recycling (availability varies by country).
Output that fits
Measuring just 222 mm high x 368 mm wide x 366 mm deep, the business-class MS331dn fits almost anywhere. Its compact size and light weight make it easy to set up and easy to move.
Print more, stop less
Optional High Yield Unison toner provides up to 15,000 pages of output, whilst an optional paper tray increases total input capacity by up to 900 sheets for more printing and less downtime. SpecificationsPrint technology
| Print resolution black | 600 x 600 DPI |
| Colour | No |
| Maximum resolution | 600 x 600 DPI |
| Maximum duty cycle | 50000 pages per month |
| Duplex printing | Yes |
| Print technology | Laser |
| Recommended duty cycle | 500 – 5000 pages per month |
| Printing colours | Black |
Printing
| Print speed (black, normal quality, A4/US Letter) | 38 ppm |
| Time to first page (black, normal) | 6.2 s |
| Duplex print speed (black, normal quality, A4/US Letter) | 17 ppm |
| Duplex printing modes | Auto |
Input capacity
| Maximum input capacity | 900 sheets |
| Multi-Purpose tray capacity | 100 sheets |
Output capacity
| Maximum output capacity | 150 sheets |
Paper handling
| Maximum ISO A-series paper size | A4 |
| ISO A-series sizes (A0…A9) | A4, A5, A6 |
| Non-ISO print media sizes | Executive (184 x 267mm), Folio (media size), Legal (media size), Letter (media size), Oficio (media size), Statement (140 x 216mm), Universal |
Networking
| Ethernet LAN | Yes |
| Network ready | Yes |
| Wi-Fi | No |
| Cabling technology | 10/100Base-T(X) |
| Supported network protocols (IPv6) | IPSEC,TCP/IP,ICMP,TCP,IGMP,UDP,802.1x |
| Supported network protocols (IPv4) | IPSEC,TCP/IP,ICMP,TCP,IGMP,UDP,802.1x |
| Security algorithms | LEAP, MD5, MSCHAPv2, PEAP, SNMPv3, TLS, TTLS |
| Management protocols | DHCP,BOOTP,RARP,mDNS,IGMP,WINS,DDNS,SNMPv3,SNMPv1,SNMPv2c,Telnet,NTP,ICMP,HTTP,DNS,ARP,HTTPs (SSL/TLS),SMTP,Finger |
Ports & interfaces
| USB port | Yes |
| USB 2.0 ports quantity | 1 |
| USB connector | USB Type-B |
Memory
| Maximum internal memory | 256 MB |
| Internal memory | 256 MB |
Processor
| Built-in processor | Yes |
Design
| Market positioning | Business |
| Product colour | Black, White |
| Built-in display | Yes |
| Display | LCD |
Power
| Power consumption (standby) | 0.9 W |
| Power consumption (ready) | 5.5 W |
| Energy Star Typical Electricity Consumption (TEC) | 0.45 kWh/week |
| Power consumption (printing) | 550 W |
System requirements
| Windows operating systems supported | Windows 10, Windows 7, Windows 8, Windows 8.1 |
| Linux operating systems supported | Y |
| Server operating systems supported | Windows Server 2016 |
Certificates
| Certification | ICES-003 B,BSMI B,US FDA,UL 60950-1,FCC B,cUL CAN/CSA-C22.2 60950-1,NOM,CB EN/IEC 60950-1,CB EN/IEC 60825-1,CE DoC (EN 62301 B,EN 62311,CE EN/IEC 60950-1,CE EN/IEC 60825-1,EN 61000-3,EN 55022 B,EuP,EN 55024,UL),EFTA (CE),KCC,CCC,CECP,CEL,C-tick DoC,UL-AR,KC,UL GS,EC 1275,MET-I,ISO 532B,ECMA-370,TED,GOST-R,SII,TER,DE-UZ 205 |
Operational conditions
| Operating temperature (T-T) | 10 – 32 °C |
| Operating relative humidity (H-H) | 8 – 80 % |
| Operating altitude | 0 – 2896 m |
Weight & dimensions
| Width | 368 mm(14.35 “) |
| Depth | 363 mm(14.16 “) |
| Height | 222 mm(8.66 “) |
| Package width | 410 mm |
| Weight | 9300 g(20.5 lbs) |
| Package depth | 420 mm |
| Package height | 280 mm |
| Package weight | 10520 g |
Packaging content
| Cartridge(s) included | Yes |
| Included cartridge capacity (black) | 1500 pages |
Other features
| Country of origin | China |
| 10,100 | |
| 53 | |
| ENERGY STAR | |
| 2 | |
| Y | |
| 350 | |
| Card stock, Labels, Plain paper | |
| 50 | |
| 150 | |
| 60 – 120 | |
| 14 | |
| 3 | |
| PCL 5, PCL 6, PCLm, PostScript 3 |








