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| Print speed (black, best quality, A4) | Up to 4 ppm |
| Print speed (colour, best quality, A4) | Up to 3.6 ppm |
| Print quality (black, best quality) | Up to 1200 x 600 dpi |
| Print quality (colour, best quality) | Up to 4800 x 1200 dpi |
| Standard memory | 32 MB |
| Duty cycle (monthly, A4) | Up to 6250 pages per month |
| Duplex print options | Automatic (standard with Officejet Pro K850dn) |
| Maximum input capacity (sheets) | Up to 150 |
| Network capabilities | Built-in Wired Connectivity |
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| Print technology | HP Thermal Inkjet |
| Print technology resolution | HP PhotoRet III |
| Colour printing technology | Colorsmart II |
| Print quality (black, best quality) | Up to 1200 x 600 dpi |
| Print quality (colour, best quality) | Up to 4800 x 1200 dpi |
| Print speed (black, best quality, A4) | Up to 4 ppm |
| Print speed (black, draft quality, A4) | Up to 24 ppm |
| Print speed (black, draft quality, A3) | Up to 11.5 ppm |
| Print speed (black, normal quality, A4) | Up to 6 ppm |
| Print speed (colour, best quality, A4) | Up to 3.6 ppm |
| Print speed (colour, best quality, A3) | Up to 2.6 ppm |
| Print speed (colour, draft quality, A3) | Up to 10.5 ppm |
| Print speed (colour, draft quality, A4) | Up to 21 ppm |
| Print speed (colour, normal quality, A4) | Up to 5.5 ppm |
| Print speed (colour, normal quality, A3) | Up to 3.5 ppm |
| Print speed (colour photo, draft quality on photo paper, 10x15) | As fast as 65 sec |
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| Custom media sizes | 76 x 127 to 330 x 2540 mm |
| Standard media sizes | A3+ (330 x 482 mm), A3 (297 x 420 mm), A4 (210 x 297 mm), B4 (250 x 353 mm) |
| Duplex supported media size | A3+, A3, A4, B4 |
| Media types supported | Paper (plain, inkjet, photo), envelopes, transparencies, labels, cards (index, greeting) |
| Maximum input capacity (sheets) | Up to 150 |
| Standard output capacity (sheets) | Up to 100 |
| Standard output capacity (envelopes) | Up to 100 |
| Duplex print options | Automatic (standard with Officejet Pro K850dn) |
| Paper handling standard/input | 150-sheet input tray |
| Standard memory | 32 MB |
| Duty cycle (monthly, A4) | Up to 6250 pages per month |
| Paper handling standard/output | 100-sheet output tray |
| External I/O ports | 1 USB, 1 Parallel |
| Maximum memory | 32 MB |
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| Software included | Printer installation CD software |
| Compatible operating systems | Microsoft® Windows® 2000, XP Home, XP Professional; Certified for Windows Vista™; Mac OS X v 10.2, Mac OS X v 10.3, Mac OS X v 10.4; Red Hat Linux 9.0 or higher; SuSE Linux 8.1 or higher; Debian 3.0 or higher; Slackware 8.1 or higher; Lindows 1.3 or higher |
| Network capabilities | Built-in Wired Connectivity |
| Compatible network operating systems | Microsoft® Windows® 2000, XP Home, XP Professional; Certified for Windows Vista™; Mac OS X v 10.2, 10.3, 10.4; Red Hat Linux 9.0 and higher; SuSE Linux 8.1 and higher; Debian 3.0 and higher; Slackware 8.1 and higher; Lindows 1.3 and higher |
| Standard connectivity | Hi-Speed USB port - compatible with 2.0 specifications, IEEE 1284-compliant parallel |
| Optional connectivity | HP Jetdirect external print servers |
| Recommended system requirements | Pentium 300 MHz, 64 MB RAM, 120 MB hard disk space, monitor (800 x 600 resolution, 256 colors) |
| Minimum system requirements | Pentium® 90 MHz, 16MB RAM, 90 MB hard disk space, monitor (640 x 480 resolution, 256 colors) |
| Standard printer languages | HP PCL3 GUI |
| Processor type | Motorola 32-bit ColdFire 4e RISC |
| Processor speed | 256 MHz |
| Dimensions (W x D x H) | 610 x 434.3 x 205 mm |
| Package dimensions (W x D x H) | 735 x 599 x 381 mm |
| Weight | 14.3 kg |
| Power consumption | 67 watts maximum |
| Power supply type | Built-in universal power supply |
| Power requirements | Input voltage 100 to 240 VAC (+/- 10%), 50/60 Hz (+/- 2 Hz), 2.5 amp |
| Operating humidity range | 15 to 80% RH |
| Recommended humidity operating range | 20 to 80% RH |
| Non-operating humidity | 15 to 90% RH |
| Acoustic power emissions | 6.1 B(A) (printing at Default mode); 6.4 B(A) (printing at 24 ppm) |
| Energy Star certified | No |
| What's in the box | HP Officejet Pro K850dn Color Printer, as base model plus automatic duplex unit and built-in networking. |