• Special print mode for a wider colour range and extra vividness for documents and marketing materials.
• Look professional with vibrant, high-quality colour prints that can stand the test of time.
• Get professional quality and performance with Original HP Toner cartridges with JetIntelligence and drums.
• Produce full-bleed A3 marketing materials by printing on SRA 3 paper and trimming down to size.

• Each printer in your fleet checks its operating code and repairs itself from attacks.
• Your printers outgoing network connections are inspected to stop suspicious requests and thwart malware.
• Memory activity is monitored to continually detect and stop attacks
• Firmware is automatically checked during startup to determine if its authentic code - digitally signed by HP.

• Change the toner and drum in seconds. Both are easily accessible and come already installed out of the box.
• Avoid interruptions with an HP LaserJet printer designed for maximum productivity.
• Tailor this printer to help you meet the needs of your business with a wide range of paper-handling accessories.
• Grab pages and go. This HP LaserJet wakes up quickly and prints fast - up to 56 ppm(A4).

• Benefit from reduced energy consumption and increased sustainability, up to 78% over predecessors.
• Help save paper right out of the box. The duplex print setting is set at default paper savings mode.
• Help reduce wasted paper, toner, and time by only printing the jobs that are needed with HP Roam for Business.

Specifications:

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Specifications
Product Code	PRHPT3U51A
Specifications
Print speed black	Normal: Up to 56 ppm
Print speed color	Normal:Up to 56 ppm
First page out (ready)	Black: As fast as 5.9 sec
	Color: As fast as 6.3 sec
	(Measured using ISO/IEC 17629. For more information see
Print quality black (best)	Up to 1200 x 1200 dpi
Print quality color (best)	Up to 1200 x 1200 dpi
Print Resolution Technologies	HP ImageREt 4800, Enhanced (600 x 600 dpi), Fine Lines (1200 x 1200 dpi), Quickview (300 x 300 dpi), Pantone Calibrated
Duty cycle (monthly, A4)	Up to 250,000 pages
	(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 page volume	Up to 50,000
	(HP recommends that the number of printed pages per month be within the stated range for optimum device performance, based on factors including supplies replacement intervals and device life over an extended warranty period.)
Print technology	Laser
Processor speed	1.2 GHz
Print languages	HP PCL 6, HP PCL 5 (HP PCL 5 driver available from the Web only), HP postscript level 3 emulation, native PDF printing (v 1.7), Apple AirPrint, Google Cloud Print
Display	10.92 cm (4.3 in) Colour Graphics Display(CGD) with touchscreen
	Rotating (adjustable angle)
Replacement cartridges	W2010A HP 659A Black LaserJet Toner Cartridge (16,000 pages)
	W2011A HP 659A Cyan LaserJet Toner Cartridge (13,000 pages)
	W2012A HP 659A Yellow LaserJet Toner Cartridge (13,000 pages)
	W2013A HP 659A Magenta LaserJet Toner Cartridge (13,000 pages)
	W2010X HP 659X Black LaserJet Toner Cartridge (34,000 pages)
	W2011X HP 659X Cyan LaserJet Toner Cartridge (29,000 pages)
	W2012X HP 659X Yellow LaserJet Toner Cartridge (29,000 pages)
	W2013X HP 659X Magenta LaserJet Toner Cartridge (29,000 pages)
	W2004A HP 660A Original LaserJet Imaging Drum (65,000 pages, universal for all 4 colours)
	(Average black and colour composite (C/M/Y) declared toner yields based on ISO/IEC 19798 and continuous printing. Actual yields vary considerably based on images printed and other factors. For details see
	Dynamic security enabled printer. Only intended to be used with cartridges using an HP original chip. Cartridges using a non-HP chip may not work, and those that work today may not work in the future.
Connectivity
Mobile printing capability	HP ePrint
	Apple AirPrint
	Google Cloud Print
	Mopria Certified
	ROAM capable for easy printing
	(To enable HP Roam, some devices may require firmware to be upgraded and an optional accessory to add Bluetooth Low Energy (BLE) beaconing capabilities. Subscription may be required. For more information, visit
Wireless capability	Optional, enabled with purchase of a wireless hardware accessory. Single band Wireless Station and Wi-Fi Direct functionality available with HP Jetdirect 3000w NFC/Wireless Accessory J8030A
	Dual band Wireless Station and Wi-Fi Direct functionality available with HP Jetdirect 3100w BLE/NFC/Wireless Accessory 3JN69A
	Dual band Wireless Station functionality available with HP Jetdirect 2900nw Print Server J8031A
Connectivity, standard	1 Hi-Speed Device USB 2.0
	2 Hi-Speed USB 2.0 rear host ports
	1 walkup USB 2.0 host port
	1 Gigabit/Fast Ethernet 10/100/1000 Base-TX network port
	1 Hardware Integration Pocket 2nd generation (HIP2)
Connectivity, optional	HP Jetdirect 2900nw Print Server J8031A, HP Jetdirect 3100w BLE/NFC/Wireless Accessory 3JN69A
Minimum system requirements	2 GB available hard disk space, Internet connection, USB port, Internet browser. For additional OS hardware requirements see
	2 GB available hard drive space, Internet connection or USB port. For OS hardware requirements see
Compatible operating systems	Windows Client OS (32/64-bit): Win10, Win8.1, Win7 Starter Edition SP1, UPD Win7 Ultimate
	Mobile OS: iOS, Android
	Apple macOS High Sierra v10.13, Apple macOS Mojave v10.14, Mac: Apple macOS Catalina v10.15
	Discrete PCL6 Printer Driver: For more information on the supported operating systems go to
	UPD PCL6 / PS Printer Drivers: For more information on the supported operating systems go to
	UPD PCL6 / PS Printer Drivers, Supported Operating systems: For more information on the supported operating systems see
	Memory specifications
Memory	1.5 GB
Maximum memory	3.5 GB
Internal Storage	Optional 500 GB available hard disk space: HP Secure High Performance Hard Disk drive 500 GB B5L29A
	HP TAA Version Secure Hard Disk Drive 5EL03A
Paper handling
Paper handling input, standard	100 sheet multipurpose tray, 550 sheet input tray
Paper handling input, optional	Add up to two: 1 x 550 sheet paper tray, Add up to one: 2 x 550 sheet paper tray and stand, 2
	700 (1
	600 + 1
	100) sheet HCI paper tray and stand
Paper handling output, standard	500 sheet output bin
Maximum output capacity (sheets)	Up to 500 sheets
Duplex printing	Automatic (standard)
Media sizes supported	100 sheet multipurpose Tray 1: A3, A4, A4-R, A5, A6, RA3, SRA3, RA4, SRA4, B4 (JIS), B5 (JIS), B6 (JIS)
	Oficio 216 x 340, 8K (270 x 390), 8K (260 x 368), 8K (273 x 394), 16K (195 x 270), 16K (184 x 260), 16K (197 x 273)
	Postcard (JIS), Envelopes: B5, C5, C6, DL
	550 sheet input Tray 2: A3, A4, A4-R, A5, RA4, SRA4, B4 (JIS), B5 (JIS)
	Oficio 216 x 340, 8K (270 x 390), 8K (260 x 368), 8K (273 x 394), 16K (195 x 270), 16K (184 x 260), 16K (197 x 273)
	Optional 1 x 550 and 2 x 550 tray and stand: A3, A4, A4-R, A5, RA3, SRA3, RA4, SRA4, B4 (JIS), B5 (JIS)
	Oficio 216 x 340, 8K (270 x 390), 8K (260 x 368), 8K (273 x 394), 16K (195 x 270), 16K (184 x 260), 16K (197 x 273)
	Postcard (JIS)
	Optional 2,700 sheet HCI paper tray and stand: A4
Media sizes, custom	100 sheet multipurpose Tray 1: 64 x 127 to 320 x 457.2 mm, 550 sheet input Tray 2: 148 x 148 to 297 x 431.8 mm, Optional 1 x 550 and 2 x 550 tray and stand: 148 x 148 to 320 x 457.2 mm, Optional 2,700 sheet HCI paper tray and stand: 279.4 x 210 mm to 297 x 215.9
Media types	Paper (plain, heavy, extra heavy, glossy, light, recycle, tough), envelopes, labels, glossy film, cardstock, transparencies
Supported media weight	100 sheet multipurpose Tray 1: 60 to 300 g/m², 550 sheet input Tray 2: 60 to 256 g/m², Optional 1 x 550 and 2 x 550 tray and stand: 60 to 256 g/m², Optional 2,700 sheet HCI paper tray and stand: 60 to 256 g/m²
Power and operating requirements
Power	Input voltage: 220 V to 240 V nominal (+/-10%), 50 - 60 Hz nominal (+/- 3 Hz), 6 A
Power consumption	870 watts (printing), 77 watts (ready), 0.7 watts (sleep), 0.7 watts (HP Auto-Off/Auto On), 0.08 watts (Auto-Off), 0.08 watts (Off)
Energy efficiency	ENERGY STAR qualified
	EPEAT Silver
	CECP
Blue Angel compliant	Yes, Blue Angel DE-UZ 205-only ensured when using Original HP supplies
Operating temperature range	10 to 32.5°C
Recommended operating humidity range	30 to 70% RH
Acoustic power emissions (ready)	4.9 B(A)
	(Acoustic values are subject to change. For current information see
Acoustic pressure emissions bystander (active, printing)	53 dB(A)
	(Acoustic values are subject to change. For current information see
Dimensions and weight
Minimum dimensions (W x D x H)	556 x 610 x 520 mm
	(With no accessories and multi-purpose tray closed)
Maximum dimensions (W x D x H)	921 x 610 x 598 mm
Weight	52.3 kg
	(With print cartridges)
Package dimensions (W x D x H)	786 x 736 x 652 mm
Package weight	59.48 kg
What's included
What's in the box	HP Color LaserJet Enterprise M856dn printer
	HP Black Original LaserJet Toner Cartridge (16,000 pages), HP Cyan, Magenta and Yellow Original LaserJet Toner Cartridges (13,000 pages each)
	4 HP Original LaserJet Imaging Drums (65,000 pages each colour)
	Getting started Guide
	1 Power cord
	(Standard cartridges included, Yields 16,000 black and 13,000 colour composite (C/M/Y) pages. Average black and colour composite (C/M/Y) declared toner yields based on ISO/IEC 19798 and continuous printing. Actual yields vary considerably based on images printed and other factors. For details see
Cable included	No, please purchase USB cable separately