| Colour | Yes |
| Print technology | Laser |
| Duplex printing | Yes |
| Maximum resolution | 1200 x 1200 DPI |
| Print speed (black, normal quality, A4/US Letter) | 38 ppm |
| 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) | 38 ppm |
| Warm-up time | 176 s |
| Time to first page (black, normal) | 6.7 s |
| Time to first page (colour, normal) | 7.6 s |
| Watermark printing | Yes |
| Secure printing | Yes |
| Maximum duty cycle | 80000 pages per month |
| Printing colours | Black, Cyan, Magenta, Yellow |
| Number of print cartridges | 4 |
| Page description languages | PCL 5c, PCL 6, PDF 1.7, PostScript 3 |
| Recommended duty cycle | 2000 - 10000 pages per month |
| Printer fonts | PostScript, Scalable, TrueType, Windows |
| Country of origin | Japan |
| HP segment | Business |
| Total number of input trays | 3 |
| Total input capacity | 2300 sheets |
| Total output capacity | 250 sheets |
| Paper tray 1 input capacity | 100 sheets |
| Paper tray 2 input capacity | 550 sheets |
| Multi-Purpose tray | Yes |
| Multi-Purpose tray input capacity | 100 sheets |
| Maximum number of input trays | 5 |
| Maximum input capacity | 2300 sheets |
| Maximum output capacity | 250 sheets |
| Maximum ISO A-series paper size | A4 |
| Paper tray media types | Plain paper, Glossy paper, Recycled paper, Heavy paper, Card stock, Thick paper, Bond paper, Transparencies, Envelopes, Letterhead, Rough paper, Labels |
| ISO A-series sizes (A0...A9) | A4, A5, A6 |
| Maximum print size | 216 x 356 mm |
| ISO B-series sizes (B0...B9) | B5 |
| ISO C-series sizes (C0...C9) | C5, C6 |
| Non-ISO print media sizes | 16K |
| JIS B-series sizes (B0...B9) | B5, B6 |
| Envelopes sizes | B5, C5, C6, DL |
| Photo paper sizes | 10x15 cm |
| Custom media width | 76 - 216 mm |
| Custom media length | 127 - 356 mm |
| Paper tray media weight | 60 - 220 g/m² |
| Direct printing | Yes |
| USB port | Yes |
| USB 2.0 ports quantity | 3 |
| Wi-Fi | Yes |
| Ethernet LAN | Yes |
| Cabling technology | 10/100/1000Base-T(X) |
| Ethernet LAN data rates | 10,100,1000 Mbit/s |
| Wi-Fi Direct | Yes |
| Wi-Fi standards | 802.11b, 802.11g, Wi-Fi 4 (802.11n) |
| Security algorithms | IPSec, EAP-TLS, SSL/TLS, SNMPv3, HTTPS, FIPS 140, EAP-PEAP |
| Mobile printing technologies | Mopria Print Service, Apple AirPrint, HP ePrint |
| Internal memory | 1024 MB |
| Maximum internal memory | 2048 MB |
| Memory slots | 1 |
| Internal storage capacity | 500 GB |
| Storage media | HDD |
| Built-in processor | Yes |
| Processor frequency | 1200 MHz |
| Sound pressure level (printing) | 51 dB |
| Sound power level (printing) | 6.3 dB |
| Market positioning | Business |
| Built-in display | Yes |
| Display | CGD |
| Colour display | Yes |
| Display diagonal | 10.9 cm (4.3") |
| Control type | Touch |
| Certification | CISPR 22:2008 (International) Class A, CISPR 32:2012 (International)/ EN 55032:2012, CISPR 35:2016 (International)/ EN 55035:2017, EN 55024:2010 +A1:2015, EN 61000-3-2:2014, EN 61000-3-3:2013, FCC CFR 47 Part 15 Class A, ICES-003, Issue 6 Class A. Other EMC approvals as required by individual countries. |
| Power consumption (printing) | 622 W |
| Power consumption (ready) | 31.3 W |
| Power consumption (PowerSave) | 0.06 W |
| Power consumption (off) | 0.06 W |
| Energy Star Typical Electricity Consumption (TEC) | 0.464 kWh/week |
| AC input voltage | 100 - 240 V |
| AC input frequency | 50/60 Hz |
| Windows operating systems supported | Windows 7 Ultimate, Windows 8.1, Windows 10 |
| Mac operating systems supported | Mac OS X 10.15 Catalina, Mac OS X 10.14 Mojave, Mac OS X 10.13 High Sierra |
| Other operating systems supported | Android, iOS |
| Operating temperature (T-T) | 10 - 32 °C |
| Storage temperature (T-T) | -20 - 40 °C |
| Operating relative humidity (H-H) | 10 - 80% |
| Sustainability compliance | Yes |
| Sustainability certificates | ENERGY STAR, Blue Angel, EPEAT Silver |
| Sustainable technologies and materials | Mercury free |
| Doesn't contain | Mercury |
| Width | 458 mm |
| Depth | 479 mm |
| Height | 513 mm |
| Weight | 33.4 kg |
| Package width | 750 mm |
| Package depth | 600 mm |
| Package height | 598 mm |
| Package weight | 39.6 kg |
| Cartridge(s) included | Yes |
| Included cartridge capacity (black) | 5500 pages |
| Included cartridge capacity (CMY) | 3500 pages |
| Cables included | AC |
| Harmonized System (HS) code | 84433210 |
| Pallet gross weight | 255 g |
| Layers per pallet | 3 pc(s) |
| Products per pallet | 6 pc(s) |
| Master (outer) cases per pallet layer | 2 pc(s) |
| Recommended system requirements | 2 GB available hard disk space, Internet connection, or USB port, Internet browser. |
| Pallet dimensions (W x D x H) | 1200 x 800 x 1944 mm |
| EAN/UPC/GTIN and local identifier(s) | (ABT) 194850414077; (ABY) 194850414084; (ACQ) 194850414114; (B13) 194850414138; (B19) 194850414145; (BAZ) 194850414152 |
| EAN/UPC/GTIN identifier(s) | 194850414077, 194850414084, 194850414114, 194850414138, 194850414145, 194850414152 |
| Recommended humidity operating range | 30 - 70% |
| Description |
| HP Color LaserJet Enterprise M555x, Print, Two-sided printing. Print technology: Laser, Colour. Number of print cartridges: 4, Maximum duty cycle: 80000 pages per month. Maximum resolution: 1200 x 1200 DPI. Maximum ISO A-series paper size: A4. Print speed (black, normal quality, A4/US Letter): 38 ppm, Duplex printing. Display: CGD. Wi-Fi |
