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HP LaserJet Enterprise M856dn Color Printer, Ethernet Only; Duplex reviews
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Compare HP LaserJet Enterprise M856dn Color Printer, Ethernet Only; Duplex reviews, specifications and available UK retailer offers. Check the details for this exact model and follow the original critics’ findings.
Manufacturer codeT3U51A
The product, explained
About the HP LaserJet Enterprise M856dn Color Printer, Ethernet Only; Duplex
HP T3U51A is listed in the laser printers category. The recorded specifications include print technology: Laser; colour printing: Yes; duplex printing: Yes; wi-fi: Yes. This entry covers manufacturer code T3U51A. Specifications relate to this exact source record; other editions or packages may differ.
The listed print technology is Laser. Compare replacement consumable prices and expected page volumes alongside the purchase price. Features such as duplex printing or a scanner should be confirmed independently in the specification table.
- Print technology
- Laser
- Colour printing
- Yes
- Maximum resolution
- 1200 x 1200 DPI
- Duplex printing
- Yes
- Black print speed (normal A4/Letter)
- 56 ppm
- Largest ISO paper size
- A3
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HP LaserJet Enterprise M856dn Color Printer, Ethernet Only; Duplex specifications
Manufacturer code: T3U51A · Icecat product 72741658 · Checked 23 Sep 2026. Specifications belong to this exact model.
Key specifications
The main features to compare for this exact model. Missing details are not assumed.
| Print technology | Laser |
|---|---|
| Colour printing | Yes |
| Maximum resolution | 1200 x 1200 DPI |
| Duplex printing | Yes |
| Black print speed (normal A4/Letter) | 56 ppm |
| Largest ISO paper size | A3 |
| Wi-Fi | Yes |
| Ethernet LAN | Yes |
More product specifications
Open a section for the details that matter to you.
Audio & listening2 details
| Acoustic power emissions (ready) | 49 dB |
|---|---|
| Acoustic pressure emissions bystander (ready) | 33 dB |
Display5 details
| Built-in display | Yes |
|---|---|
| Display | CGD |
| Colour display | Yes |
| Screen size | 10.9 cm (4.3") |
| Touchscreen | Yes |
Processor, memory & storage8 details
| Memory (RAM) | 1536 MB |
|---|---|
| Maximum internal memory | 3584 MB |
| Memory slots | 1 |
| Storage capacity | 16 GB |
| Card reader integrated | No |
| Built-in processor | Yes |
| Processor frequency | 1200 MHz |
| Storage temperature (T-T) | -20 - 40 °C |
Printing, scanning & paper34 details
| Duplex printing mode | Auto |
|---|---|
| Print resolution colour | 1200 x 1200 DPI |
| Print resolution black | 1200 x 1200 DPI |
| Print speed (colour, normal quality, A4/US Letter) | 56 ppm |
| Print speed (black, normal quality, A3) | 26 ppm |
| Print speed (colour, normal quality, A3) | 26 ppm |
| Watermark printing | Yes |
| Secure printing | Yes |
| Printing colours | Black, Cyan, Magenta, Yellow |
| Number of print cartridges | 4 |
| Printer fonts | Scalable, TrueType, Windows, PCL, PostScript, Barcode |
| 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); |
| Total number of input trays | 2 |
| Total output capacity | 500 sheets |
| Paper tray 1 input capacity | 100 sheets |
| Paper tray 2 input capacity | 550 sheets |
| Paper input type | Paper tray |
| Maximum number of input trays | 6 |
| Maximum output capacity | 500 sheets |
| Paper tray media types | Plain paper, Glossy paper, Recycled paper, Envelopes, Card stock, Labels, Transparencies, Heavy paper, Lightweight paper |
| Non-ISO print media sizes | Oficio, 16K |
| Paper tray media weight | 60 - 256 g/m² |
| Multi-Purpose Tray media weight | 60 - 300 g/m² |
| Mobile printing technologies | Mopria Print Service, HP ePrint, Apple AirPrint, Google Cloud Print |
| Sound pressure level (printing) | 53 dB |
| Sound power level (printing) | 6.8 dB |
| Power consumption (printing) | 870 W |
| Total carbon footprint (kg of CO2e) | 307 |
| Cartridge(s) included | Yes |
| Included cartridge capacity (black) | 16000 pages |
| Included cartridge capacity (CMY) | 13000 pages |
| HP ePrint | Yes |
| Custom media sizes | 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 |
| Printing | Colour printing |
Connections & wireless4 details
| USB port | Yes |
|---|---|
| USB 2.0 ports quantity | 4 |
| Ethernet LAN data rates | 10,100,1000 Mbit/s |
| Bluetooth | Yes |
Power & battery7 details
| Power consumption (ready) | 77 W |
|---|---|
| Power consumption (PowerSave) | 0.7 W |
| Power consumption (off) | 0.08 W |
| Energy Star Typical Electricity Consumption (TEC) | 2.669 kWh/week |
| AC input voltage | 220 - 240 V |
| AC input frequency | 50/60 Hz |
| Power supply type | Built-in 115V or 220V Power Supply |
Controls & features3 details
| Control type | Buttons, Touch |
|---|---|
| Operating temperature (T-T) | 10 - 32.5 °C |
| Recommended operating temperature range (T-T) | 15 - 27 °C |
Design & dimensions9 details
| Colour | Yes |
|---|---|
| Time to first page (colour, normal) | 6.3 s |
| Custom media width | 64 - 320 mm |
| Product colour | White |
| Sustainable technologies and materials | Mercury free |
| Width | 556 mm |
| Depth | 610 mm |
| Height | 520 mm |
| Weight | 52.3 kg |
Software & compatibility9 details
| Certification | CISPR 22:2008 (International) - Class A, CISPR 32:2012 (International) - Class A, EN 55032:2012 (EU) - Class A, EN 61000-3-2:2014, EN 61000-3-3:2013, EN 55024:2010, EMC Directive 2014/30/EU. Other EMC approvals as required by individual countries. |
|---|---|
| Windows operating systems supported | Windows 7 Ultimate x64, Windows 7 Ultimate, Windows 7 Starter x64, Windows 7 Starter, Windows 7 x64, Windows 7, Windows 8 x64, Windows 8, Windows 8.1 x64, Windows 8.1, Windows 10 x64, Windows 10 |
| Mac operating systems supported | Mac OS X 10.12 Sierra, Mac OS X 10.13 High Sierra, Mac OS X 10.14 Mojave, Mac OS X 10.15 Catalina, Mac OS X 10.15.3 Catalina, MacOS |
| Linux operating systems supported | Yes |
| Other operating systems supported | Android, iOS |
| Sustainability compliance | Yes |
| Compliance certificates | CECP |
| Electromagnetic compatibility | CISPR 22:2008 (International) - Class A, CISPR 32:2012 (International) - Class A, EN 55032:2012 (EU) - Class A, EN 61000-3-2:2014, EN 61000-3-3:2013, EN 55024:2010, EMC Directive 2014/30/EU. Other EMC approvals as required by individual countries. |
| 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 http://www.support.hp.com, Enter your product name and search, Click on User Guides and enter your product name and search for User Guide, Search for your (Product Name) User Guide, Search for the Su |
Further product details42 details
| Warm-up time | 150 s |
|---|---|
| Time to first page (black, normal) | 5.9 s |
| Maximum duty cycle | 250000 pages per month |
| Recommended duty cycle | 0 - 50000 pages per month |
| Page description languages | PostScript 3, PDF 1.7, PCL 6 |
| HP segment | Business |
| Total input capacity | 650 sheets |
| Multi-Purpose tray | Yes |
| Multi-Purpose tray input capacity | 100 sheets |
| Maximum input capacity | 4450 sheets |
| ISO A-series sizes (A0...A9) | A3, A4, A5, A6 |
| ISO B-series sizes (B0...B9) | B5 |
| ISO C-series sizes (C0...C9) | C5, C6 |
| JIS B-series sizes (B0...B9) | B4, B5, B6 |
| Envelopes sizes | B5, C5, C6, DL |
| Custom media length | 127 - 457.2 mm |
| Cabling technology | 10/100/1000Base-T(X) |
| Security algorithms | SNMPv3, SSL/TLS, WPA2-Enterprise, EAP-PEAP, EAP-TLS, IPSec |
| Market positioning | Business |
| Operating relative humidity (H-H) | 10 - 80% |
| Sustainability certificates | ENERGY STAR, Blue Angel, EPEAT Silver |
| Doesn't contain | Mercury |
| Carbon emissions, manufacturing (kg of CO2e) | 213 |
| Carbon emissions, logistics (kg of CO2e) | 11 |
| Carbon emissions, end-of-life (kg of CO2e) | 33 |
| Total carbon emissions, w/o use phase (kg of CO2e) | 11 |
| Quick start guide | Yes |
| HP Web Jetadmin | Yes |
| HP Auto-On/Auto-Off | Yes |
| HP Dynamic security | Yes |
| HP Security tools | Management security: SNMPv3, Web Services over port 7627, SSL/TLS TLS 1.0/1.1/1.2, FIPS 140-2, Certificate Management, Embedded Web Server, WPA2-Enterprise, 802.1X authentication (EAP- PEAP, EAP-TLS), IPsec/Firewall with Certificate, Pre-Shared Key Authentication, and Kerberos Authentication; Support for WJA-10 IPsec Configuration using IPsec Plug-in |
| HP GTIN (EAN/UPC) with options | (ABT) 193015438231; (ABY) 193015438248; (ACQ) 193015438255; (B13) 193015438262; (B19) 193015438279; (BAZ) 193015438286 |
| HP GTIN (EAN/UPC) | 193015438231, 193015438248, 193015438255, 193015438262, 193015438279, 193015438286 |
| Layers per pallet | 3 pc(s) |
| General Product Safety Regulation (GPSR) URL | https://support.hp.com/gb-en/product/setup-user-guides/hp-color-laserjet-enterprise-m856-printer-series/model/21298870?sku=T3U51A ; https://h10032.www1.hp.com/ctg/Manual/c06365003.pdf ; https://kaas.hpcloud.hp.com/pdf-public/pdf_881578_en-US-1.pdf |
| Recommended system requirements | 2 GB available hard disk space; Internet connection; USB port; Internet browser. 2 GB available hard drive space; Internet connection or USB port. |
| Recommended humidity operating range | 30 - 70% |
| Envelope feeder | No |
| Typical electricity consumption (TEC) number | Blue Angel: 2.669 kWh/Week; Energy Star 3.0: 0.725 kWh/Week |
| UNSPSC-code | 43212105 |
| Box contents | 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 |
| Manufacturer warranty | One-year, next-business day, onsite warranty. Warranty and support options vary by product, country and local legal requirements. Contact your Contractual Vendor or go to http://www.hp.com/support to learn about HP award winning service and support options in your region. |
Packaging & supplied accessories13 details
| Country of origin | Japan |
|---|---|
| Pallet dimensions (W x D x H) | 790 x 760 x 2107 mm |
| Package width | 786 mm |
| Package depth | 736 mm |
| Package height | 652 mm |
| Package weight | 59.5 kg |
| Cables included | AC |
| Harmonized System (HS) code | 84433210 |
| Pallet gross weight | 188.4 kg |
| Products per pallet | 3 pc(s) |
| Master (outer) cases per pallet layer | 1 pc(s) |
| Pallet dimensions (W x D x H) (imperial) | 789.9 x 760 x 2106.7 mm (31.1 x 29.9 x 82.9") |
| Pallet weight (imperial) | 188.4 kg (415.4 lbs) |
Specifications describe the supplied product data, not measured review results. Battery life, range and performance figures are source claims and can vary with use.
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Your questions, answered
HP LaserJet Enterprise M856dn Color Printer, Ethernet Only; Duplex FAQs
How many expert reviews are available for HP LaserJet Enterprise M856dn Color Printer, Ethernet Only; Duplex?
No scored critic reviews have been imported for this product yet. This means review coverage is missing; it does not mean the product received a poor review.
What is the COR Score for HP LaserJet Enterprise M856dn Color Printer, Ethernet Only; Duplex?
The COR Score is tbd. We publish a combined score only after at least three distinct critics have usable ratings. Any individual reviews already available remain visible.
Which exact version does this page cover?
This page identifies HP LaserJet Enterprise M856dn Color Printer, Ethernet Only; Duplex using manufacturer code T3U51A. Check that reference, configuration and supplied accessories against the retailer listing. Related-version reviews are labelled separately and do not contribute to this version’s score.
What is the listed print technology for HP LaserJet Enterprise M856dn Color Printer, Ethernet Only; Duplex?
The source specification records print technology as Laser. This is a specification, not an independent performance measurement. Check the exact model and the original critic reviews for real-world results.
What is the listed colour printing for HP LaserJet Enterprise M856dn Color Printer, Ethernet Only; Duplex?
The source specification records colour printing as Yes. This is a specification, not an independent performance measurement. Check the exact model and the original critic reviews for real-world results.
Where can I compare prices for HP LaserJet Enterprise M856dn Color Printer, Ethernet Only; Duplex?
Use the retailer-offer section on this page for available matched offers. If no offer is shown, we do not currently have a verified price. Confirm model, stock, delivery and the final total at the retailer; coverage does not include every seller.
Are cartridge yields guaranteed?
No. They are standardised comparison figures; actual yield depends on coverage, jobs and maintenance.
Is Wi-Fi printing less secure?
It can be safe when the printer and network are kept updated and secured. Use manufacturer setup guidance and protect the network.
Does a scanner mean it has an automatic document feeder?
No. Check the specification for both features.
How should I use the specifications alongside reviews?
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