Output that fits
Measuring just 8.7 inches high x 14.5 inches wide x 14.3 inches deep (222 mm high x 368 mm wide x 363 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
Available High Yield Unison™ toner provides up to 15, 000 pages of output, while an optional paper tray increases total input capacity up to 900 sheets for more printing and less downtime.

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 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 support ratings of EPEAT® Silver and ENERGY STAR® certified. The Lexmark Cartridge Collection Program (LCCP) and Lexmark Equipment Collection Program (LECP) minimize waste and support recycling (availability varies by country).

Specification

Product
Product id	683632
Brand	Lexmark
Partnr	29S0010
EAN/UPC code	734646695534
Warranty (months)	1 year
Processor
Built-in processor	Y
Packaging data
Package width	410 mm
Package depth	420 mm
Package height	280 mm
Package weight	10520 g
Printing
Colour	N
Print technology	Laser
Duplex printing	Y
Duplex printing mode	Auto
Maximum resolution	600 x 600 pixels
Print resolution black	600 x 600 DPI
Print speed (black, normal quality, A4/US Letter)	40 ppm
Warm-up time	6.2 s
Features
Maximum duty cycle	50000 pagina's per maand
Recommended duty cycle	500 - 5000 pagina's per maand
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
Printer fonts	PCL, PPDS
Bitmap fonts	OCR-A, OCR-B
Input & output capacity
Total number of input trays	1
Total input capacity	350 vel
Total output capacity	150 vel
Paper tray 1 input capacity	350 vel
Maximum input capacity	900 vel
Maximum output capacity	150 vel
Paper handling
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
Ports & interfaces
Direct printing	Y
USB port	Y
USB 2.0 ports quantity	1
USB connector	USB Type-B
Network
Wi-Fi	N
Ethernet LAN	Y
Ethernet LAN data rates	10, 100 Mbit/s
Cabling technology	10/100Base-T(X)
Mobile printing technologies	Apple AirPrint
Management protocols	DHCP, BOOTP, RARP, mDNS, IGMP, WINS, DDNS, SNMPv3, SNMPv1, SNMPv2c, Telnet, NTP, ICMP, HTTP, DNS, ARP, HTTPs (SSL/TLS), SMTP, Finger
Performance
Internal memory	256 MB
Maximum internal memory	256 MB
Sound pressure level (printing)	53 dB
Sound pressure level (duplex printing)	50 dB
Design
Product colour	Black, White
Built-in display	Y
Display	LCD
Colour display	N
Country of origin	China
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)
Technical details
Sustainability certificates	ENERGY STAR
Power
Power consumption (printing)	550 W
Power consumption (ready)	5.5 W
Energy Star Typical Electricity Consumption (TEC)	0.45 kWh/week
System requirements
Windows operating systems supported	Windows 10, Windows 7, Windows 7 x64, Windows 8, Windows 8.1, Windows 8.1 x64
Linux operating systems supported	Y
Server operating systems supported	Windows Server 2016, Windows Server 2019
Other operating systems supported	Y
Operational conditions
Operating temperature (T-T)	10 - 32 °C
Operating relative humidity (H-H)	8 - 80 procent
Operating altitude	0 - 2896 m
Weight & dimensions
Width	368 mm
Depth	363 mm
Height	222 mm
Weight	9300 g
Packaging content
Cartridge(s) included	Y
Included cartridge capacity (black)	1500 pagina's
Power cord included	Y