ENERGY STAR® Qualified
Print speed, color (ppm)
Print speed, black (ppm)
HP LaserJet Pro M521dn Multifunction Printer(A8P79A)
Finish jobs faster, produce high-quality documents, and make scanning and sharing simple. Get set up and connected quickly.[3,7] Send quick commands from an intuitive color touchscreen. Easily conserve resources and recycle used cartridges.
Quickly create, capture, and deliver documents
Finish faster—with less standing around—using single-pass, dual-head scanning.
Stay on schedule—print up to 42 pages per minute. Handle high-volume printing without worries.
Scan documents and send digital files in one easy step—to email, the cloud, network folders, or a USB drive.
Efficiently handle large jobs, with an input capacity up to 1,100 sheets and automatic two-sided printing.
Increase efficiency with an easy-to-manage MFP
Work smarter—access, store, and print business content quickly from the 3.5-inch color touchscreen.
Control access to walkup features and easily look up network email addresses, using LDAP connectivity.
Save time with an easy-to-install Original HP cartridge. Save more, using a high-capacity cartridge.
Efficiently manage this MFP, using HP Web Jetadmin to remotely monitor office printing and device status.
Set up fast and stay connected
Get this MFP up and running fast with HP Smart Install—no CD required.
Easily print from your smartphone, tablet, or notebook at home, work, or on the go.
Use resources more efficiently with 100/1000 Base –TX Ethernet networking—easily print and share.
Pull print jobs from your pocket—walk up and print right from a memory device via the USB port.
Improve your energy costs and save resources
Help save energy with HP Auto-On/Auto-Off Technology, Instant-on Copy, and Instant-on Technology.
Conserve resources and save paper—use automatic two-sided printing.
Get centralized, easy access to custom energy-saving options and printer settings with HP EcoSMART Console.
Reduce your impact—easily recycle Original HP LaserJet toner cartridges through HP Planet Partners.
Reduce paper use by up to 50% using automatic two-sided printing.
Reduce energy use with HP Instant-on Technology and HP Instant-on Copy.[eco01]
Save energy—HP Auto-On/Auto-Off Technology turns your printer on when you need it and off when you don’t.
[eco01] Compared with products that use traditional fusing and cold cathode fluorescent lamp (CCFL) copying.
[eco02] HP Auto-On and Auto-Off Technology subject to printer and settings.
 Printing speed measured using ISO/IEC 24734 and excludes first set of test documents. For more information, see hp.com/go/printerclaims. Exact speed varies depending on the system configuration, software application, driver, and document complexity. First page out exact speed varies depending on the system configuration, software program, document complexity, network, media width, media weight, environment, and job size.
 Requires an Internet connection to the printer. Services may require registration. App availability varies by country, language, and agreements. For details, see hpconnected.com
 HP LaserJet 255X Black Toner Cartridge not included; please purchase separately.
 HP Smart Install works with Microsoft Windows only.
 Local printing requires mobile device and printer to be on the same network or have a direct wireless connection to the printer. Wireless performance is dependent on physical environment and distance from access point. Wireless operations are compatible with 2.4 GHz operations only. Remote printing requires an Internet connection to an HP web-connected printer. App or software and HP ePrint account registration may also be required. Wireless broadband use requires separately purchased service contract for mobile devices. Check with service provider for coverage and availability in your area. See hp.com/go/mobileprinting for more details
 HP Auto-On and Auto-Off Technology are subject to printer and settings. Instant-on Technology claim based on comparison with products that use traditional fusing. Instant-on Copy claim based on comparison with fluorescent tubes.
 Program availability varies. Original HP cartridge return and recycling is currently available in more than 50 countries, territories and regions in Asia, Europe, and North and South America through the HP Planet Partners program. For more information, visit: hp.com/recycle
 HP Web Jetadmin is free and can be downloaded at hp.com/go/webjetadmin
|All-in-one functions:||Print, copy, scan, fax|
|Mobile Printing Capability:||HP ePrint, Apple AirPrint™, Mobile Apps|
|Print speed black (normal, letter):||Up to 42 ppm|
|Print speed footnote:||Exact speed varies depending on the system configuration, software application, driver and document complexity.|
|Print speed footnote:||Measured using ISO/IEC 24734, excludes first set of test documents. For more information see hp.com/go/printerclaims. Exact speed varies depending on the system configuration, software application, driver, and document complexity.|
|Print resolution, black:||Up to 1200 x 1200 dpi|
|First page out (black):||As fast as 8.0 sec|
|Monthly duty cycle:||75000|
|Footnote for duty cycle:||Duty cycle is defined as the maximum number of pages per month of imaged output. This value provides a comparison of product robustness in relation to other HP LaserJet or HP Color LaserJet devices, and enables appropriate deployment of printers and MFPs to satisfy the demands of connected individuals or groups.|
|Recommended monthly print volume:||2000 to 6000|
|Footnote for recommended monthly print volume:||HP recommends that the number of pages per month of imaged output be within the stated range for optimum device performance, based on factors including supplies replacement intervals and device life over an extended warranty period.|
|Paper handling standard,input:||100-sheet multipurpose tray, 500-sheet input tray 2, 50-sheet Automatic Document Feeder (ADF)|
|Paper handling optional,input:||Optional 500-sheet tray (add up to 1 trays)|
|Paper handling standard,output:||250-sheet output bin, 100-sheet rear output bin|
|Envelope capacity:||Up to 10 envelopes|
|Duplex printing (printing on both sides of paper):||Automatic (standard)|
|Media sizes, standard:||Letter; legal; oficio|
|Output capacity:||Up to 10 envelopes|
|Media sizes, custom:||Tray 1: 3 x 5 to 8.5 x 14 in; tray 2, optional 500-sheet tray (3): 4.1 x 5.8 to 8.5 x 14 in|
|Media weight:||Tray 1: 14 to 53 lb; Tray 2, 3: 14 to 32 lb|
|Media types:||Paper (bond, color, letterhead, plain, preprinted, prepunched, recycled, rough); envelopes, labels, cardstock, transparencies, user-defined|
|Weight:||52.7 lb (22.3 kg)|
|Processor speed:||800 MHz|
|Memory, standard:||256 MB|
|Memory, maximum:||256 MB|
|Print languages, standard:||HP PCL 6; HP PCL 5; HP postscript level 3 emulation, PCLm|
|Scanner type:||Flatbed, ADF|
|Scan resolution, optical:||75, 150, 300|
|Scan resolution, optical:||Up to 300, 600, 1200 dpi|
|Bit depth:||24 bit (8 bit for grayscale duplex jobs)|
|Scan size, maximum (flatbed):||8.5 x 11.7 in|
|Scan size, maximum (ADF):||8.5 x 14 in|
|Fax telehpone handset:||No|
|Scanner duplex feeder:||Yes|
|Sure Supply Support:||Yes|
|Automatic paper sensor:||Yes|
|Automatic paper sensor:||Yes, 1 USB (AP & Brazil only); No, please purchase USB cable separately (EMEA, Americas except Brazil)|
|Digital sending specifications|
|Digital sending features:||Scan-to-E-mail with LDAP e-mail address lookup; Scan-to-Network Folder; Scan-to-USB drive|
|Supported file formats:||Digital Send: PDF, JPEG, TIFF, MTIFF, XPS, PDF/A; Scan to easy access USB: PDF, JPEG, TIFF, MTIFF, XPS, PDF/A; Print from easy access USB: PDF, PS, Print Ready files (.prn, .pcl, .cht)|
|Maximum number of copies:||Up to 99 copies|
|Copy reduce/enlarge settings:||25 to 400%|
|Copy resolution, black:||Up to 600 x 600 dpi|
|Fax transmission speed (seconds per page):||3 sec per page|
|Fax note:||Based on standard ITU-T test image #1 at standard resolution. More complicated pages or higher resolution will take longer and use more memory.|
|Fax memory:||Up to 250 pages|
|Fax resolution, black (dots per inch):||Up to 300 x 300 dpi|
|Fax delayed sending:||Yes|
|Junk fax barrier:||Yes, requires Caller ID|
|HP ePrint capability:||Yes|
|Connectivity, optional:||HP Jetdirect ew2500 802.11b/g Wireless Print Server J8021A; HP Jetdirect 2700w USB Wireless Print Server J8026A|
|Connectivity, standard:||1 Hi-Speed USB 2.0 Device; 1 Hi-Speed USB 2.0 Host; 1 Gigabit Ethernet 10/100/1000Base-TX; 1 Telecom; 1 Phone|
|Mobile printing capability:||HP ePrint, Apple AirPrint™, Mobile Apps|
|Minimum system requirements:||PC: Windows 7 (32-bit/64-bit), Windows Vista (32-bit/64-bit): 1 GHz 32-bit (x86) or 64-bit (x64) processor, 1 GB RAM (32-bit) or 2 GB RAM (64-bit), 400 MB free hard disk space, CD/DVD-ROM or Internet, USB or Network port; Windows XP (32-bit) SP2: Pentium® 233 MHz processor, 512 MB RAM 400 MB free hard disk space, CD/DVD-ROM or Internet, USB or Network port
Macintosh: Mac OSX v 10.6; PowerPC G4, G5, or Intel® Core™ Processor; 500 MB hard disk; CD-ROM/DVD-ROM or Internet; USB or Network port
|Compatible operating systems:||Full software installs supported on: Windows 8 32-bit and 64-bit, Windows 7 32-bit and 64-bit, Windows Vista 32-bit and 64-bit, Windows XP 32-bit (SP2 or higher)
Driver only installs supported on: Windows 2012
Windows Server 2008 32-bit and 64-bit, Windows Server 2003 32-bit (SP3 or higher)
Mac OS X v 10.6.8 and later
Linpus Linux (9.4, 9.5), Red Hat Enterprise Linux 5.0 (supported with a pre-built package)
SUSE Linux (10.3, 11.0, 11, 11.1, 11.2), Fedora (9, 9.0, 10, 10.0, 11.0, 11, 12, 12.0), Ubuntu (8.04, 8.04.1, 8.04.2, 8.10, 9.04, 9.10, 10.04), Debian (5.0, 5.0.1, 5.0.2, 5.0.3) (supported by the automatic installer)
HPUX 11 and Solaris 8/9
|Display:||3.5" (8.89 cm) touchscreen, LCD (color graphics)|
|Dimensions and weight|
|Weight:||52.7 lb (22.3 kg)|
|Dimensions (W x D x H):||18.3 x 18.3 x 20 in (465 x 465 x 508 mm)|
|Dimensions, max (W x D x H):||18.3 x 35.4 x 29.5 in|
|Package weight:||65.05 lb|
|Power and operating requirements|
|Power supply:||Input voltage: 110 to 127 VAC (+/- 10%), 50/60Hz (+/- 2 Hz) and 220V-240 VAC (+/- 10%), 50/60Hz (+/- 2 Hz)|
|Power consumption:||760 watts (Printing), 520 watts (Copying from ADF), 18.2 watts (Ready), 4.3 watts (Sleep), 0.3 watts (Off)|
|Power consumption footnote:||Values subject to change. Power numbers are the highest values measured using all standard voltages. See hp.com/support for current information. Power requirements are based on the country/region where the printer is sold. Do not convert operating voltages. This will damage the printer and void the product warranty.|
|Acoustic power emissions:||6.7 B(A)|
|Operating temperature range:||59 to 90.5ºF|
|Recommended Operating humidity range:||10 to 80% RH|
|What's in the box:||HP LaserJet Pro MFP M521dn; HP LaserJet Black cartridge (~6000 pages); Printer documentation and software on CDs (Windows/Mac OS installation CD); Installation guide, Support flyer, warranty card; power cord; USB cable (AP & Brazil only); Fax Cable|
|Cable included?:||Yes, 1 USB (AP & Brazil only); No, please purchase USB cable separately (EMEA, Americas except Brazil)|
|Software included?:||Windows: HP Installer/Uninstaller, HP PCL 6 print driver, HP WIA Scan Driver, HP TWAIN Scan Driver, HP Scan, HP Fax Setup Wizard, HP Send Fax, HP Fax Print Driver, Status Alerts, HP Update, DXP; Mac: HP Installer/Uninstaller, HP Postscript driver, HP Scan, HP Setup Assistant, HP Fax Print Driver, HP Utility, HP Alerts, HP Firmware Updater|
|Warranty:||One-year limited warranty, Onsite|
* HP is not liable for pricing errors. If you place an order for a product that was incorrectly priced, we will cancel your order and credit you for any charges. In the event that we inadvertently ship an order based on a pricing error, we will issue a revised invoice to you for the correct price and contact you to obtain your authorization for the additional charge, or assist you with return of the product. If the pricing error results in an overcharge to you, HP will credit your account for the amount overcharged.
** Lease products available through Hewlett-Packard Financial Services Company (HPFS) to qualified commercial customers in the U.S. and are subject to credit approval and execution of standard HPFS documentation. Lease prices shown are based upon HPFS’ current lease rates for premium risk rating customers (as determined by HPFS in its sole discretion). All customers may not qualify for this pricing. HPFS lease rates may vary depending upon HPFS’ credit review and approval of the customer and the transaction. Other restrictions may apply. HPFS reserves the right to change or cancel this program at any time without notice.
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