Lexmark MS431dn Network Mono Laser Printer+Duplex Printing 40ppm [29S0084] *Ex-Demo Unit* with 6 months return to base warranty.

All units come in original box and have been used just for 2-weeks TRADE SHOW and have a print out Page count range between: 250-900 pages on average printouts. BTW, the printer comes with 3,000 -page Return Program Toner Cartridge

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Light, compact and fast, the MS431dn supports output of up to 40 pages per minute, multiple connectivity options and an optional 550-sheet paper tray.
Solid performance, flexible connectivity
Get your first page as fast as 5.9 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.
Print more, stop less
In addition to a first page as fast as 5.9 seconds and output of up to 40 pages per minute, optional Extra High Yield Unison™ toner provides up to 20,000 pages of output. Add an optional paper tray that increases total input capacity by up to 900 sheets for more printing and less downtime.
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.
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).
Hands-off durability
With its steel frame and lifetime fuser, the MS431dn is built to last.
Output that fits
Measuring just 222 mm high x 368 mm wide x 363 mm deep, the business-class MS431dn fits almost anywhere. Its compact size and light weight make it easy to set up and easy to move.

Specifications
Part no.  29S0084
Print Technology 
    Monochrome Laser

Workgroup Size 
    Small Workgroup

Display 
    2-line All Points Addressable (APA) monochrome LCD display

Media Sizes Supported 
    A6, Oficio, 7 3/4 Envelope, 9 Envelope, JIS-B5, A4, Legal, A5, Letter, B5 Envelope, Statement, C5 Envelope, Executive, Universal, DL Envelope, Folio, 10 Envelope

Included Paper Handling 
    100-Sheet Multipurpose Feeder, Integrated Duplex, 150-Sheet Output Bin, 250-Sheet Input

Standard Ports 
    Gigabit Ethernet (10/100/1000), USB Compatible with USB 2.0 Specification (Type B)

Size (mm - H x W x D) 
    222 x 368 x 363 mm

Weight 
    9.3 kg

Packaged Size (mm - H x W x D) 
    280 x 410 x 420 mm

Packaged Weight, kg 
    10.52 kg

Printing
Print Speed 
    Up to:
    Black: 40 ppm1 (A4)

Print Speed Duplex 
    Up to:
    Black: 17 spm1 (A4)

Time to First Page 
    As fast as:
    Black: 5.9 seconds

Print Resolution 
    Black: 2400 Image Quality, 600 x 600 dpi

Duplex 
    2-sided:
    Integrated Duplex

Printable Area 
    metric: 5.0 mm of the top, bottom, right and left edges (within)

Paper Handling
Media Types Supported 
    Paper Labels, Card Stock, Plain Paper, Envelopes, Refer to the Paper & Specialty Media Guide

Finishing Option 
    No

Number of Paper Inputs 
    Standard: 2
    Maximum: 3

Paper Input Capacity 
    Standard: 350 pages 75 gsm bond
    Maximum: 900 pages 75 gsm bond
    350 pages 75 gsm bond

Paper Output Capacity 
    Up to:
    Standard: 150 pages 75 gsm bond
    Maximum: 150 pages 75 gsm bond

Paper Weight Range Supported 
    gsm:
    60 - 120 gsm (Standard Tray)
    60 - 217 gsm (Multipurpose Feeder)

Optional Paper Handling 
    550-Sheet Tray

Recommended Monthly Page Volume 
    800 - 8000 pages2

Maximum Monthly Duty Cycle 
    Up to:
    80000 pages per month3

Cartridges & Imaging
Laser Cartridge Yields 
    up to:
    3,0004-page Cartridge
    15,0004-page High Yield Cartridge
    20,0004-page Black Extra High Yield Cartridge

Imaging Unit Estimated Yield 
    Up to:
    40000 pages, based on 3 average letter/A4-size pages per print job and ~ 5% coverage5

Cartridge(s) Shipping with Product 
    3,000-page Starter Return Program Toner Cartridge

Hardware
Processor Speed 
    Dual Core, 1.0 GHz

Memory 
    Standard: 256 MB
    Maximum: 256 MB

Hard Disk 
    Not Available

Printer Languages 
    Standard:
    PCL 5c Emulation, PCL 5e Emulation, PCL 6 Emulation, Personal Printer Data Stream (PPDS), PostScript 3 Emulation, PDF 1.7 emulation, Direct Image

Fonts and Symbol Sets 
    2 PCL bitmap fonts, 158 scalable PostScript fonts, OCR-A, OCR-B scalable PCL 5e fonts, For more information, refer to the Technical Reference., 3 of 9 scalable PCL 5e fonts in Narrow, Regular and Wide, 89 scalable PCL fonts, 5 PPDS bitmap fonts, 39 scalable PPDS fonts

Touch Screen Display 
    No

Connectivity
Direct USB 
    No

Ethernet Network 
    Yes

Wireless 
    No

Network Protocol Support 
    TCP/IP IPv6, IPSEC w/ IPv4, IPSEC w/ IPv6, TCP/IP IPv4, ICMP, TCP, IGMP, UDP, 802.1x

Network Printing Methods 
    LPR/LPD, Microsoft Web Services WSD, FTP, TFTP, Enhanced IP (Port 9400), IPP 1.0, 1.1, 2.0 (Internet Printing Protocol)

Network Management Protocols 
    DHCP, BOOTP, RARP, mDNS, IGMP, WINS, DDNS, SNMPv3, SNMPv1, SNMPv2c, Telnet, NTP, ICMP, HTTP, DNS, ARP, HTTPs (SSL6/TLS), SMTP, Finger

Network Security 
    SNMPv3, 802.1x Authentication: MD5, MSCHAPv2, LEAP, PEAP, TLS, TTLS

Supported Operating Systems
Microsoft Windows Operating Systems Supported 
    Windows 10, Windows 8.1, Windows 8, Windows 7 x64, Windows 8.1 x64, Windows 7

Apple Operating Systems Supported 
    Support is provided through AirPrint and AirScan only

Linux Operating Systems Supported 
    SUSE Linux Enterprise Server 12 SP4, SUSE Linux Enterprise Server 12 SP3, openSUSE Linux 15, SUSE Linux Enterprise Server 15, Debian 9.4, 9.5, 9.6, Debian GNU/Linux 8.11, Ubuntu 16.04, 18.04 LTS, openSUSE Linux 42.3, Red Hat Enterprise Linux WS 6.10, 7.5, 7.6, Fedora 27, 28, 29