| Colour | No |
| Print technology | Laser |
| Duplex printing | Yes |
| Maximum resolution | 600 x 600 DPI |
| Print speed (black, normal quality, A4/US Letter) | 40 ppm |
| Duplex printing mode | Auto |
| Print resolution black | 600 x 600 DPI |
| Warm-up time | 6.2 s |
| Maximum duty cycle | 50000 pages per month |
| Printing colours | Black |
| Number of print cartridges | 1 |
| Page description languages | HTML Direct Image Space, PCL 5c, PCL 5e, PCL 6, PDF 1.7, PPDS |
| Recommended duty cycle | 500 - 5000 pages per month |
| Printer fonts | PCL, PPDS |
| Bitmap fonts | OCR-A, OCR-B |
| Country of origin | China |
| Total number of input trays | 1 |
| Total input capacity | 350 sheets |
| Total output capacity | 150 sheets |
| Paper tray 1 input capacity | 350 sheets |
| Maximum input capacity | 900 sheets |
| Maximum output capacity | 150 sheets |
| Maximum ISO A-series paper size | A4 |
| Paper tray media types | Card stock, Envelopes, Plain paper |
| ISO A-series sizes (A0...A9) | A4, A5 |
| JIS B-series sizes (B0...B9) | B5 |
| Envelopes sizes | 7 3/4, 9, 10, B5, C5, DL |
| Direct printing | Yes |
| USB port | Yes |
| USB 2.0 ports quantity | 1 |
| USB connector | USB Type-B |
| Wi-Fi | No |
| Ethernet LAN | Yes |
| Cabling technology | 10/100Base-T(X) |
| Ethernet LAN data rates | 10,100 Mbit/s |
| Management protocols | DHCP, BOOTP, RARP, mDNS, IGMP, WINS, DDNS, SNMPv3, SNMPv1, SNMPv2c, Telnet, NTP, ICMP, HTTP, DNS, ARP, HTTPs (SSL/TLS), SMTP, Finger |
| Mobile printing technologies | Apple AirPrint |
| Internal memory | 256 MB |
| Maximum internal memory | 256 MB |
| Built-in processor | Yes |
| Sound pressure level (printing) | 53 dB |
| Sound pressure level (duplex printing) | 50 dB |
| Product colour | Black, White |
| Built-in display | Yes |
| Display | LCD |
| Colour display | No |
| Certification | ENERGY STAR, ICES-003 Class B, BSMI Class B, US FDA, UL 60950-1, FCC Class B, cUL CAN/CSA-C22.2 60950-1, NOM, CB EN/IEC 60950-1, CB EN/IEC 60825-1, CE DoC (EN 62301 Class B, EN 62311, CE EN/IEC 60950-1, CE EN/IEC 60825-1, EN 61000-3, EN 55022 Class B, EuP, EN 55024, UL), EFTA (CE), KCC, CCC, CECP, CEL, C-tick DoC, UL-AR, KC mark, UL GS mark, EC 1275, MET-I, ISO 532B, ECMA-370, TED, GOST-R, SII, TER, DE-UZ 205, China Green Product (CGP) |
| Power consumption (printing) | 550 W |
| Power consumption (ready) | 5.5 W |
| Energy Star Typical Electricity Consumption (TEC) | 0.45 kWh/week |
| Windows operating systems supported | Windows 10, Windows 7, Windows 7 x64, Windows 8, Windows 8.1, Windows 8.1 x64 |
| Linux operating systems supported | Yes |
| Server operating systems supported | Windows Server 2016, Windows Server 2019 |
| Other operating systems supported | Yes |
| Operating temperature (T-T) | 10 - 32 °C |
| Operating relative humidity (H-H) | 8 - 80% |
| Operating altitude | 0 - 2896 m |
| Sustainability certificates | ENERGY STAR |
| Width | 368 mm |
| Depth | 363 mm |
| Height | 222 mm |
| Weight | 9.3 kg |
| Package width | 410 mm |
| Package depth | 420 mm |
| Package height | 280 mm |
| Package weight | 10.5 kg |
| Cartridge(s) included | Yes |
| Included cartridge capacity (black) | 1500 pages |
| Cables included | AC |
| Harmonized System (HS) code | 84433210 |
| Description |
| Lexmark MS331dn. Print technology: Laser. Number of print cartridges: 1, Maximum duty cycle: 50000 pages per month. Maximum resolution: 600 x 600 DPI. Maximum ISO A-series paper size: A4. Print speed (black, normal quality, A4/US Letter): 40 ppm, Duplex printing. Display: LCD, Product colour: Black, White |
