Laser printers
With exceptional performance and secure design, the MS631dw delivers enhanced productivity of up to 47 pages per minute* and a toner yield of up to 31,000 pages**. Fast time to first print, superior print quality and easy-to-use touch screen.
Proprietary technology
We own core technology across hardware, firmware, services and solutions, creating seamless connections designed to reduce the risk of security gapsbetween your document, your device and your network.
Sustainability
With certifications in Energy Star®, Blue Angel, RoHS, EPEAT® Silver. Models are sustainable for today and beyond. Lexmark is an industry leader of recycled content with products using at least 39% PCR content and continual focus on improvement. This line is also engineered for Long Life and designed to last and reduce waste.
Secure by design
Lexmark expertise helps customers to protect their data, their device and their network. Our security ecosystem is designed to overcome the most complex data challenges. And now we™ve added the Trusted Platform Module (TPM)***, which includes on-board authentication, system integrity checks, and cryptographic capabilities to create a unique digital system fingerprint. TPM meets stringent industry and US government security standards, including Common Criteria and Federal Information Processing Standard (FIPS).
Manageability
These IoT-ready devices can be remotely managed and monitored, including setup, configuration, consumables management and diagnostics. Wireless capability gives freedom of access, and remote firmware updates make it easy to upgrade to the latest security features. Our mobile printing app makes it easier to monitor and manage your print jobs from remote locations, all from the touch of your phone.
Ongoing professional product support
From easy installation to a lifetime of producing high volumes of pages, you'll find our devices easy to use and intuitive. Instructional and on-product support videos, and simple colour-coded guidance for maintenance tasks like changing toner, make our device experience world-class. For our managed print customers, we offer a step beyond withpredictive analytics for fleet diagnostics that can help Lexmark detect and prevent potential problems before they happen.
Intelligent Design
Every touch point is designed to withstand high usage whilst meeting accessibility standards. Steel frames support the device and provide durability to help to ensure consistent long-term performance. Products are designed for long service life with long-life components. Servicing is easy with few tools required.
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Specification
Print technology Print resolution black 1200 x 1200 DPI Duplex printing mode Manual Number of print cartridges 1 Print technology Laser Recommended duty cycle 2000 - 20000 pages per month Printing colours Black Maximum duty cycle 175000 pages per month Duplex printing Yes Maximum resolution 1200 x 1200 DPI Colour No Input capacity Maximum input capacity 2300 sheets Multi-Purpose tray input capacity 100 sheets Output capacity Maximum output capacity 250 sheets Print quality Print technology Laser Recommended duty cycle 2000 - 20000 pages per month Maximum duty cycle 175000 pages per month Duplex printing Yes Maximum resolution 1200 x 1200 DPI Colour No Performance Certification ENERGY STAR, ICES-003 Class B, BSMI Class B, VCCI 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 62368-1 Class B, EN 62311, CE EN/IEC 60950-1, CE EN/IEC 60825-1, EN 61000-3, EN 55022 Class B, EuP, EN 55032 Class B, UL), EFTA (CE), KCC, CCC, CECP, CEL, A-tick DoC, UL-AR, KC mark, UL GS mark, EC 1275, ISO 532B, ECMA-370, TED, SII, TER Windows operating systems supported Windows 10, Windows 11, Windows 7, Windows 7 x64, Windows 8, Windows 8 x64, Windows 8.1, Windows 98, Windows ME, Windows NT, Windows Vista, Windows Vista x64, Windows XP Linux operating systems supported Debian 10, Debian 9.4, Fedora 32, Fedora 33, OpenSUSE 15.2, Red Hat Enterprise Linux 7.9, Red Hat Enterprise Linux 8.3, SuSE Linux 12.0, SuSE Linux 15, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, openSUSE 15.1 Server operating systems supported Windows 2000 Server, Windows Server 2003, Windows Server 2003 x64, Windows Server 2008, Windows Server 2008 R2, Windows Server 2008 x64, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016, Windows Server 2019, Windows Server 2022 Other operating systems supported Novell Open Enterprise Server 11, Novell Open Enterprise Server 2 Built-in processor Yes Processor cores 2 Processor frequency 1000 MHz Maximum internal memory 512 MB Internal memory 512 MB Sound pressure level (printing) 56 dB Sound pressure level (duplex printing) 55 dB Sound power level (standby) 14 dB Memory Maximum internal memory 512 MB Internal memory 512 MB Processor Built-in processor Yes Processor cores 2 Processor frequency 1000 MHz Software Windows operating systems supported Windows 10, Windows 11, Windows 7, Windows 7 x64, Windows 8, Windows 8 x64, Windows 8.1, Windows 98, Windows ME, Windows NT, Windows Vista, Windows Vista x64, Windows XP Linux operating systems supported Debian 10, Debian 9.4, Fedora 32, Fedora 33, OpenSUSE 15.2, Red Hat Enterprise Linux 7.9, Red Hat Enterprise Linux 8.3, SuSE Linux 12.0, SuSE Linux 15, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, openSUSE 15.1 Server operating systems supported Windows 2000 Server, Windows Server 2003, Windows Server 2003 x64, Windows Server 2008, Windows Server 2008 R2, Windows Server 2008 x64, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016, Windows Server 2019, Windows Server 2022 Other operating systems supported Novell Open Enterprise Server 11, Novell Open Enterprise Server 2 Printing Print resolution black 1200 x 1200 DPI Duplex printing mode Manual Print technology Laser Time to first page (black, normal) 6 s Duplex print speed (black, normal quality, A4/US Letter) 24 ppm Print speed (black, normal quality, A4/US Letter) 47 ppm Duplex printing Yes Maximum resolution 1200 x 1200 DPI Colour No Certificates Certification ENERGY STAR, ICES-003 Class B, BSMI Class B, VCCI 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 62368-1 Class B, EN 62311, CE EN/IEC 60950-1, CE EN/IEC 60825-1, EN 61000-3, EN 55022 Class B, EuP, EN 55032 Class B, UL), EFTA (CE), KCC, CCC, CECP, CEL, A-tick DoC, UL-AR, KC mark, UL GS mark, EC 1275, ISO 532B, ECMA-370, TED, SII, TER Features Duplex printing mode Manual Print technology Laser Duplex printing Yes Colour No Control type Touch Number of print cartridges 1 Recommended duty cycle 2000 - 20000 pages per month Printing colours Black Maximum duty cycle 175000 pages per month Page description languages PCL 5, PCL 6, PCLm, PDF 1.7, PPDS Input & output capacity Total number of input trays 2 Total input capacity 2300 sheets Total output capacity 250 sheets Maximum output capacity 250 sheets Maximum input capacity 2300 sheets Multi-Purpose tray input capacity 100 sheets Multi-Purpose tray Yes Paper handling Maximum ISO A-series paper size A4 ISO A-series sizes (A0...A9) A4, A5, A6 JIS B-series sizes (B0...B9) B5 Envelopes sizes 7 3/4, 9, 10, B5, C5, DL Paper tray media types Card stock, Envelopes, Labels, Plain paper Paper tray media weight 60 - 120 g/m² Ports & interfaces USB port Yes USB connector USB Type-A / USB Type-B USB 2.0 ports quantity 1 Optional connectivity Wireless LAN Network Mobile printing technologies Apple AirPrint Wi-Fi standards 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac) Security algorithms IPSec, LEAP, MSCHAPv2, PEAP, SNMPv3, TLS, TTLS Management protocols DHCP, APIPA (AutoIP), mDNS, BOOTP, WINS, DDNS, DNS, ARP Cabling technology 10/100/1000Base-T(X) Wi-Fi Yes Ethernet LAN Yes Ethernet LAN data rates 10,100,1000 Mbit/s Design Colour display Yes Built-in display Yes Display diagonal 7.11 cm (2.8") Product colour Black, White Certification ENERGY STAR, ICES-003 Class B, BSMI Class B, VCCI 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 62368-1 Class B, EN 62311, CE EN/IEC 60950-1, CE EN/IEC 60825-1, EN 61000-3, EN 55022 Class B, EuP, EN 55032 Class B, UL), EFTA (CE), KCC, CCC, CECP, CEL, A-tick DoC, UL-AR, KC mark, UL GS mark, EC 1275, ISO 532B, ECMA-370, TED, SII, TER Control type Touch Market positioning Business Technical details Built-in display Yes Display diagonal 7.11 cm (2.8") Product colour Black, White Cabling technology 10/100/1000Base-T(X) Energy Star Typical Electricity Consumption (TEC) 0.6 kWh/week Cartridge(s) included Yes Power consumption (printing) 657 W Sustainability compliance Yes Sustainability certificates ENERGY STAR Power Power consumption (ready) 7.1 W Power consumption (standby) 0.1 W Power consumption (off) 0.9 W Energy Star Typical Electricity Consumption (TEC) 0.6 kWh/week Power consumption (printing) 657 W System requirements Windows operating systems supported Windows 10, Windows 11, Windows 7, Windows 7 x64, Windows 8, Windows 8 x64, Windows 8.1, Windows 98, Windows ME, Windows NT, Windows Vista, Windows Vista x64, Windows XP Linux operating systems supported Debian 10, Debian 9.4, Fedora 32, Fedora 33, OpenSUSE 15.2, Red Hat Enterprise Linux 7.9, Red Hat Enterprise Linux 8.3, SuSE Linux 12.0, SuSE Linux 15, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, openSUSE 15.1 Server operating systems supported Windows 2000 Server, Windows Server 2003, Windows Server 2003 x64, Windows Server 2008, Windows Server 2008 R2, Windows Server 2008 x64, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016, Windows Server 2019, Windows Server 2022 Other operating systems supported Novell Open Enterprise Server 11, Novell Open Enterprise Server 2 Operational conditions Operating altitude 0 - 2896 m Operating relative humidity (H-H) 15 - 80% Operating temperature (T-T) 10 - 32 °C Sustainability Sustainability compliance Yes Sustainability certificates ENERGY STAR Weight & dimensions Package depth 430 mm Width 399 mm Weight 15 kg Package width 470 mm Package height 422 mm Height 306.6 mm Depth 389.4 mm Package weight 17.1 kg Packaging data Package depth 430 mm Package width 470 mm Package height 422 mm Package weight 17.1 kg Included cartridge capacity (black) 5000 pages Cartridge(s) included Yes Cables included AC Packaging content Included cartridge capacity (black) 5000 pages Cartridge(s) included Yes Cables included AC Other features Cabling technology 10/100/1000Base-T(X) Energy Star Typical Electricity Consumption (TEC) 0.6 kWh/week Cartridge(s) included Yes Power consumption (printing) 657 W
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