| Paper handlingidentical |
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| Media size (tray 1)Known for one | A4, A5, B5 (JIS), 76 x 127 - 216 x 356 mm | —Unknown — not stated by the source |
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| Media types supportedKnown for one | Paper (plain, preprinted, letterhead, prepunched, bond, recycled, color, rough), transparencies, labels, envelopes, cardstock | —Unknown — not stated by the source |
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| Media weight (tray 1)Known for one | 60 - 200 g/m² | —Unknown — not stated by the source |
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| Maximum ISO A-series paper sizeKnown for one | —Unknown — not stated by the source | A4 |
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| Maximum print sizeKnown for one | —Unknown — not stated by the source | 216 x 297 mm |
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| Paper tray media typesKnown for one | —Unknown — not stated by the source | Bond paper, Card stock, Envelopes, Labels, Plain paper, Pre-printed, Recycled paper, Transparencies |
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| ISO A-series sizes (A0...A9)Known for one | —Unknown — not stated by the source | A4, A5 |
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| Non-ISO print media sizesKnown for one | —Unknown — not stated by the source | Executive, Legal, Letter |
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| JIS B-series sizes (B0...B9)Known for one | —Unknown — not stated by the source | B5 |
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| Other features2 differ |
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| Minimum system requirementsKnown for one | Microsoft Windows 98: Pentium 90, 16 MB RAM, CD-ROM drive; Windows Me: Pentium 150, 32 MB RAM, CD-ROM drive; Windows NT 4.0: Pentium 90, 32 MB RAM, CD-ROM drive; Windows 2000: 133 MHz processor, 64 MB RAM, CD-ROM drive; Windows XP: 233 MHz processor, 6 | —Unknown — not stated by the source |
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| Printer managementKnown for one | HP Web Jetadmin, HP LaserJet Utility, HP Embedded Web Server, E-Toolbox | —Unknown — not stated by the source |
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| Power requirementsKnown for one | 100 - 127V / 220 - 240V, 50/60 Hz (+/- 2 Hz) | —Unknown — not stated by the source |
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| Electromagnetic compatibilityKnown for one | CISPR 22: 1997/EN 55022: 1998 Class B, EN 61000-3-2: 2000, EN 61000-3-3: 1995+A1, EN 55024: 1998, FCC Title 47 CFR, Part 15 Class B (US), ICES-003, Issue 4 (Canada), GB9254-1998, EMC Directive 89/336/EEC with CE Marking (Europe); other EMC approvals as re | —Unknown — not stated by the source |
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| Compatible operating systemsKnown for one | OS/2, UNIX, Linux, HP OpenVMS Microsoft Windows 98, Me, NT 4.0, 2000, XP, Server 2003; Apple Mac OS 9.x and later, OS X v.10.1 + | —Unknown — not stated by the source |
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| Networking featuresKnown for one | Via HP Jetdirect Internal Print Servers for Fast Ethernet, Gigabit Ethernet; 802.11b wireless connectivity Optional: HP Jetdirect Fast Ethernet Embedded Print Server | —Unknown — not stated by the source |
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| SafetyKnown for one | IEC 60950 (International), EN 60950 (EU), IEC 60825-1+A1+A2, UL/cUL Listed (US/Canada), GS License (Europe), EN 60825-1+A11+A2 Class 1, 21 CFR Ch. 1/SubCh. J (Class 1 Laser/LED Device) GB4943-2001, Low Voltage Directive 73/23/EEC with CE Marking (Europe); | —Unknown — not stated by the source |
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| Standard input traysKnown for one | 2 | —Unknown — not stated by the source |
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| Package dimensions (WxDxH)Differs | 592 x 495 x 347 mm | 600 x 500 x 430 mm |
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| Additional paper traysKnown for one | Optional 500-sheet paper tray | —Unknown — not stated by the source |
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| Standard input capacity for transparenciesKnown for one | 75 | —Unknown — not stated by the source |
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| Print quality (black, normal quality)Differs | 1200 DPI | 600 DPI |
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| I/O portsKnown for one | 1 x IEEE 1284-B parallel 1 x USB 2.0 1 x EIO | —Unknown — not stated by the source |
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| Custom media sizesKnown for one | 76 x 127 - 216 x 356 mm | —Unknown — not stated by the source |
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| Standard media sizesKnown for one | A4, A5, B5 (JIS), letter, legal | —Unknown — not stated by the source |
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| TypefacesKnown for one | 80 | —Unknown — not stated by the source |
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| Media weights by paper pathKnown for one | 60 - 200 g/m²; 60 - 120 g/m² | —Unknown — not stated by the source |
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| Acoustic power emissionsKnown for one | 6.7 B(A) | —Unknown — not stated by the source |
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| Duplex print optionsKnown for one | Manual (driver support provided) | —Unknown — not stated by the source |
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| Print speed (black, best quality, A4)Known for one | 28 ppm | —Unknown — not stated by the source |
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| Paper handlingKnown for one | HP LaserJet 2420 series printers: Built-in automatic duplex unit (HP LaserJet 2420d/dn only), 350 sheets standard input capacity (1x 100-sheet/ 10 envelope multipurpose tray, 1x 250-sheet tray), paper input level indicators, straight-through paper path, s | —Unknown — not stated by the source |
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| Control panelKnown for one | Graphical display with up to 2 lines of text; Help button (?) to provide information about the message on the display; Back button to back up in menus or exit menus; Pause/Resume button to pause and resume printing; Up Arrow button to navigate to previous | —Unknown — not stated by the source |
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| Driver updatesKnown for one | Most recent printer drivers and software for all supported operating systems available at http://www.hp.com/support/lj2400; OS/2 drivers are available from IBM and are packaged with OS/2 | —Unknown — not stated by the source |
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| Duplex supported media sizeKnown for one | A4, letter, legal, executive | —Unknown — not stated by the source |
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| Maximum paper traysKnown for one | 3 | —Unknown — not stated by the source |
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| Media size (tray 2)Known for one | A4, A5, B5 (JIS), letter, legal, executive | —Unknown — not stated by the source |
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| Media type and capacity (tray 2)Known for one | 250 | —Unknown — not stated by the source |
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| Media weight (tray 2)Known for one | 60 - 120 g/m² | —Unknown — not stated by the source |
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| Media weight (tray 3)Known for one | 60 - 120 g/m² | —Unknown — not stated by the source |
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| Memory technologyKnown for one | Memory Enhancement technology (MEt), Double Data Rate memory technology | —Unknown — not stated by the source |
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| Paper handling optional/inputKnown for one | 500-sheet input tray | —Unknown — not stated by the source |
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| Paper handling standard/inputKnown for one | 100-sheet multipurpose tray, 250-sheet input tray | —Unknown — not stated by the source |
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| Paper handling standard/outputKnown for one | 250-sheet top output bin (100-sheet rear output bin) | —Unknown — not stated by the source |
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| Power consumption (active)Known for one | 625 W | —Unknown — not stated by the source |
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| Print quality (black, best quality)Known for one | 1200 x 1200 DPI | —Unknown — not stated by the source |
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| Service & supportKnown for one | HP Web sites, HP Customer Support Center, HP Care Packs | —Unknown — not stated by the source |
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| Technical featuresKnown for one | Add fonts, forms, and third-party solutions via CompactFlash support | —Unknown — not stated by the source |
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| Upgrade typeKnown for one | Printer firmware and networking firmware can be remotely upgraded | —Unknown — not stated by the source |
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| Product dimensions when open (LxWxD)Known for one | —Unknown — not stated by the source | 42.4 cm (16.7") |
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| Size (imperial)Known for one | —Unknown — not stated by the source | 42.4 cm (16.7") |
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| Acoustic pressure emissionsKnown for one | —Unknown — not stated by the source | 51 dB |
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| Package dimensions (W x D x H)Known for one | —Unknown — not stated by the source | 600.2 x 496.1 x 430 mm (23.6 x 19.5 x 16.9") |
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| Pallet dimensions (W x D x H) (imperial)Known for one | —Unknown — not stated by the source | 1201.4 x 1000.8 x 2301.2 mm (47.3 x 39.4 x 90.6") |
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| Pallet weight (imperial)Known for one | —Unknown — not stated by the source | 427.6 kg (942.7 lbs) |
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