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| GENERAL |
| Model | SF-2540 | ML-4551N |
| Type | All-in-one (printer/copier) | Printer |
| For Use | Office | |
| Width | 24.8 inch (633 mm) | 15.5 inch (396 mm) |
| Height | 23.8 inch (607 mm) | 17.8 inch (453 mm) |
| Depth | 25.5 inch (650 mm) | 13.8 inch (353 mm) |
| Weight | 145.5 lbs (66.4 kg) | 37.5 lbs (17.83 kg) |
| PRINTER |
| Printer Type | LED | Laser |
| Output Type | Monochrome Printer | Monochrome Printer |
| Format | A3 | A4 |
| Print Speed | 40 ppm (black A4), 22 ppm (black A3) | 43 ppm (black A4) |
| Output Feed Capacity | | 350 pages (standart) |
| Print Resolution | | 1200x1200 dpi |
| Input Feed Capacity | 500 pages (standart), 4050 pages (maximum) | 600 pages (standart), 2100 pages (maximum) |
| Manual Feed Tray Capacity | 50 pages | |
| Monthly Duty Cycle | 30000 pages | |
| First Page Out | 3.10 s (black) | 8.50 s (black) |
| Media Types | Plain Paper, Transparencies, Stickers, Glossy Photo Paper, Matte Photo Paper. | Plain Paper, Cards, Transparencies, Stickers, Glossy Photo Paper, Envelopes, Matte Photo Paper. |
| Paper Weight Support | 52-128 g/m2 | 60-163 g/m2 |
| Heating Time | 100 s | |
| Ink Cartridges Count | 1 | 1 |
| Colors Count | 1-ink | |
| Direct Print (PictBridge) | | Yes |
| Cartridge Capacity (Black) | 15000 pages | 10000 pages |
| LCD Screen |
| LCD | Yes | Yes |
| LCD Type | Monochrome | Monochrome |
| SCANNER/COPIER |
| Scanner Type | Flatbed | |
| Scanner Format | A3 | |
| Scan Element | CCD | |
| Zoom Range | 50-200 % | |
| Zoom Step | 1 x | |
| Copying Speed | 40 ppm (Black A4), 22 ppm (Black A3) | |
| Maximum Number Of Copies | 999 | |
| FEATURES |
| Interfaces | | Ethernet (RJ-45), LPT, USB 2.0 |
| Memory | | 128 Mb, maximum: 512 Mb |
| OS Support | | Windows, Linux, Mac OS |
| Processor Type | | Samsung |
| Processor Speed | | 500 mHz |
| Minimum System Requirements | | Intel Pentium + 32 Mb RAM |
| Power Consumption Operational | 1750 W | |
| Noise Level | 71 dB | 57 dB |
| Noise Level (Sleep) | 50 dB | 35 dB |
| Postscript Support | | Yes |
| Postscript Fonts | | 136 |
| PCL fonts | | 46 |
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| Compare rating |
5
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9
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