In the Box

• 1,500*-page Black Print Cartridge
• 1,500*-page Color (CMY) Print Cartridges
• Lexmark CX431adw Color Laser Multifunction Printer
• Warranty Information
• Worldwide Safety Information Sheet
• Software and Documentation CD
• Worldwide Printer Setup Sheet
• Power Cord

Box contents may vary by country and/or reseller. Subject to change without notice.

Ethernet, USB or parallel cable not included.

*Average continuous black or continuous composite CMY declared cartridge yield in one-sided (simplex) mode up to this number of standard pages in accordance with ISO/IEC 19798.

General SpecsPart #40N9370Print Technology

• Color Laser

Function

• Color Copying
• Color Printing
• Color Scanning
• Faxing

Workgroup Size

• Small-Medium Workgroup

Display

• 2.8 inch (7.2 cm) LCD touch panel

Media Sizes Supported

• A6, Oficio, 7 3/4 Envelope, 9 Envelope, JIS-B5, A4, Legal, A5, Hagaki Card, Letter, B5 Envelope, Statement, C5 Envelope, Executive, Universal, DL Envelope, Folio, 10 Envelope

Included Paper Handling

• 100-Sheet Output Bin, Integrated Duplex, Single-Sheet Manual Feed, 250-Sheet Input

Standard Ports

• Gigabit Ethernet (10/100/1000), 802.11ac Wireless, Front Hi-Speed USB Port Compatible with USB 2.0 Specification (Type A), USB 2.0 Specification Hi-Speed Certified (Type B)

Size (in. - H x W x D)

• 13.6 x 16.2 x 15.5 in.

Weight (lb.)

• 42.7 lb.

Packaged Size (in. - H x W x D)

• 20.4 x 17.3 x 21.9 in.

Packaged Weight (lb.)

• 50 lb.

CopyingCopy Speed

• Up to:
• Black: 26 cpm1(Letter)
• Color: 26 cpm1(Letter)

Copy Speed Duplex

• Up to:
• Black: 26 spm1(Letter)
• Color: 26 spm1(Letter)

Time to First Copy

• As fast as:
• Black: 12.1 seconds
• Color: 13.3 seconds

Reduce / Enlarge Range

• 25 - 400 %

FaxingModem Speed

• Max is 33,600 bps, V.34 Half-Duplex Kbps

Fax Transmission Speed

• < 3 seconds per page

PrintingPrint Speed

• Up to:
• Black: 26 ppm1(Letter)
• Color: 26 ppm1(Letter)

Print Speed Duplex

• Up to:
• Black: 13 spm1(Letter)
• Color: 13 spm1(Letter)

Time to First Page

• As fast as:
• Black: 10.8 seconds
• Color: 11 seconds

Print Resolution

• Black: 4800 CQ (2400 x 600 dpi)
• Color: 4800 CQ (2400 x 600 dpi)

Duplex

• 2-sided:
• Integrated Duplex

Printable Area

• 0.17 inches of the top, bottom, right and left edges (within)

ScanningScanner Type / ADF Scan

• Flatbed scanner with ADF
• DADF (single pass Duplex)

Scan Area

• 8.5 x 14 inches (Maximum)

A4/Ltr Simplex Scan Speed

• Up to:
• Black: 45 / 48 sides per minute
• Color: 20 / 21 sides per minute

A4/Ltr Duplex Scan Speed

• Up to:
• Black: 90 / 96 sides per minute
• Color: 40 / 42 sides per minute

Scan Technology

• CIS

Optical Scanning Resolution

• 600 X 600 dpi (black)
• up to 600 X 600 dpi (color)

Scan File Formats

• Send as:
• TIFF, PDF, JPEG, JPG

Scan Destinations

• e-mail, USB or Network connected computer, USB Flash drive, FTP

ADF

• 50-Sheet Automatic Document Feeder

ADF Paper Input Capacity / ADF Paper Output Capacity

• Up to: 50 pages 20 lb or 75 gsm bond
• Up to: 50 pages 20 lb or 75 gsm bond

Paper HandlingMedia Types Supported

• Hagaki Card, Paper Labels, Card Stock, Plain Paper, Envelopes, Glossy Paper, Refer to the Paper & Specialty Media Guide

Finishing Option

• No

Number of Paper Inputs

• Standard: 2
• Maximum: 2

Paper Input Capacity

• Standard: 250+1 pages 20 lb or 75 gsm bond
• Maximum: 750+1 pages 20 lb or 75 gsm bond
• 250+1 pages 20 lb or 75 gsm bond

Paper Output Capacity

• Up to:
• Standard: 100 pages 20 lb or 75 gsm bond
• Maximum: 100 pages 20 lb or 75 gsm bond

Paper Weight Range Supported

• lb.:
• 16 - 47 lb. (Standard Tray)

Optional Paper Handling

• 250-Sheet Tray

Recommended Monthly Page Volume

• 750 - 5000 pages2

Maximum Monthly Duty Cycle

• Up to:
• 75000 pages per month3

Cartridges & ImagingLaser Cartridge Yields

• up to:
• 6,7004-page Color (CMY) Extra High Yield Cartridges
• 6,0004-page Black Extra High Yield Cartridge
• 1,5004-page Black and Color (CMYK) Cartridges

Cartridge(s) Shipping with Product

• 1,5004-page Black Return Program Toner Cartridge4, 1,5004-page Color (CMY) Return Program Toner Cartridges4

Replacement Cartridges:

• Product functions only with replacement cartridges designed for use in a specific geographical region. See www.lexmark.com/regions for more details.

HardwareProcessor Speed

• Dual Core, 1.0 GHz

Memory

• Standard: 1 GB
• Maximum: 1 GB
• Standard: 1024 MB
• Maximum: 1024 MB

Hard Disk

• Not Available

Printer Languages

• Standard:
• PCL 5c Emulation, PCL 5e Emulation, PCLm, PCL 6 Emulation, PostScript 3 Emulation, PDF 1.7 emulation, Direct Image

Fonts and Symbol Sets

• 2 PCL bitmap fonts, OCR-A, OCR-B scalable PCL 5e fonts, For more information, refer to the Technical Reference., 91 scalable PostScript fonts, 3 of 9 scalable PCL 5e fonts in Narrow, Regular and Wide, 89 scalable PCL fonts

Touch Screen Display

• Yes

Ethernet Network

• Yes

Wireless

• Yes

Network Protocol Support

• TCP/IP IPv6, TCP/IP IPv4, TCP, UDP

Network Printing Methods

• Microsoft Web Services WSD, FTP, TFTP, Enhanced IP (Port 9400), IPP 1.0, 1.1, 2.0 (Internet Printing Protocol)

Network Management Protocols

• DHCP5, APIPA (AutoIP)5, BOOTP, RARP5, mDNS5, IGMP5, WINS5, DDNS5, SNMPv35, SNMPv1, SNMPv2c5, NTP5, ICMP5, HTTP5, DNS5, ARP5, HTTPs (SSL5/TLS)5, Finger5

Network Security

• IPSec, SNMPv3, 802.1x Authentication: MD5, MSCHAPv2, LEAP, PEAP, TLS, TTLS, TCP/IP port access control

Supported Operating SystemsMicrosoft Windows Operating Systems Supported

• Windows 11, Windows 10, Windows 8.1, Windows 8, Windows 8 x64, Windows 7 x64, Windows 8.1 x64, Windows 7

Apple Operating Systems Supported

• Support is provided through AirPrint and AirScan only

Android Operating System Support

• Support is provided through Mopria® Print Service and Mopria Scan.

Linux Operating Systems Supported

• openSUSE Linux 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, SUSE Linux Enterprise Server 10, 11, 12

Citrix MetaFrame

• Microsoft Windows Server 2003 and 2003 X64 Edition with Citrix XenApp 5.0, Microsoft Windows Server 2012 with Citrix XenApp 6.0, 6.5, Microsoft Windows Server 2003 x64 running Terminal Services with Citrix Presentation Server 4.0 x64, 4.5 x64, Microsoft Windows Server 2008 R2 with Citrix XenApp 6.0, 6.5, Microsoft Windows Server 2008 and 2008 X64 Edition with Citrix XenApp 5.0

Novell Operating Systems Supported

• Novell Open Enterprise Server 11 (SP3) on SuSE Linux Enterprise Server 11 SP4 (x86 and x64), Novell NetWare 6.5 Open Enterprise Server, Novell Open Enterprise Server 15 (SP1) on SuSE Linux Enterprise Server 11 SP4 (x86 and x64), Novell Open Enterprise Server 11 (SP3) on SuSE Linux Enterprise Server 12 SP1 (x86 and x64), Novell Open Enterprise Server 2 on SUSE Linux Enterprise Server 10 SP4

Electrical & OperationENERGY STAR

• Yes

ENERGY STAR Typical Electricity Consumption

• TEC:
• 0.37 kilowatt-hours per week

Noise Level

• Operating:
• 14 dBA (Idle)
• 51/52 dBA (Print)

Duplex Print Noise Level

• Operating:
• 50/52 dBA

Average Power

• 1.3 watts (Sleep Mode)
• 17.5 watts (Ready Mode)
• 400 watts (Printing)
• 395 watts (Copying)
• 21 watts (Scanning)

Specified Operating Environment

• Humidity: 8 to 80% Relative Humidity
• Altitude: 0 - 3048 Meters (10,000 Feet)
• Temperature: 10 to 32°C (50 to 90°F)

Product Certifications

• ENERGY STAR, ICES-003 Class B, BSMI Class B, US FDA, UL 60950-1, FCC Class B, cUL CAN/CSA-C22.2 60950-1, 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, EN 55024, UL), EFTA (CE), KCC, CCC, CECP, CEL, C-tick DoC, UL-AR, KC mark, UL GS mark, UCRF, EC 1275, DE-UZ 219, CNS-13438/14336, Wi-Fi CERTIFIED, China Green Product (CGP), Mopria Certified

UNSPSC Code

• China (PRC)

License/Agreement Terms

• Printers are sold subject to certain license/agreement conditions. See www.lexmark.com/printerlicense for details.