SpecificationsML-4550 ML-4551N ML-4551NDPrintSpeed *ResolutionFirst Print Out TimeUp to 43 ppm in A4 (45 ppm in Letter)Up to 1,200 x 1,200 dpi effective output8.5 seconds (from Ready)ControllerProcessorMemoryEmulationInterfaceFontsOS CompatibilitySamsung 500 MHz128 MB (Max. 512 MB)45 Scalable, 1 Bitmap, 136 PS3, OCR FontsWindows 98/Me/NT4.0/2000/XP(32/64bit)/2003 Server(32/64bit),Various Linux OS including Red Hat 8~9, Fedora Core 1~3, Mandrake 9.2~10.1 and SuSE 8.2~9.2,Mac OS 8.6 - 9.2 / 10.1 - 10.4Paper HandlingInput Capacity and TypesOutput Capacity and TypesDuplexMedia sizeSpecial MediaGeneralNet Dimension (W x D x H)Net WeightNoise Level **396 x 453 x 353 mm (15.6" x 17.8" x 13.9")17.83 Kg (39.3 lbs)Less than 57 dBA (Printing)Less than 35 dBA (Standby)* Print speed will be affected by Operating System used, computing performance, application software, connecting method, media type, media size and job complexity.** Sound Pressure Level, ISO7779Design and Specifications are subject to change without notice.Trademarks of other companies mentioned in these publications are hereby recognised and acknowledged.Distributed by2006. 06Optional17.83 Kg (39.3 lbs) 19.1 Kg (42.1 lbs)396 x 453 x 353 mm (15.6" x 17.8" x 13.9") 396 x 526 x 353 mm (15.6" x 20.7" x 13.9")Built-inPS3, PCL6, IBM ProPrinter, EPSON, PDF Direct500-sheet Cassette Tray, 100-sheet MP Tray250-sheet Face Down, 100-sheet Face UpOptional76 x 127 mm (3" x 5") ~ 216 x 356 mm (8.5" x 14")Transparency, Label, Post Card, EnvelopeHi-Speed USB 2.0, IEEE1284 Parallel Hi-Speed USB 2.0, IEEE 1284 Parallel, Ethernet 10/100 Base TXHi-Speed USB 2.0, IEEE 1284 Parallel, Ethernet 10/100 Base TXSupplies and OptionsPlease visit www.samsungprinter.com to download the latest software version.*** Only ML-4551ND is defaulted.Consumables Standard 10,000 pages @ ISO 19752 5% CoverageHigh Yield 20,000 pages @ ISO 19752 5% Coverage128 MB SDRAM256 MB SDRAMML-D4550AML-D4550BMemory ML-MEM150ML-MEM160Wired Network Internal Ethernet 10/100 Base TX (Optional for ML-4550) ML-NWA20NML-3560U1ML-HDK210ML-S4550AML-S4550AML-S4550ADuplexHDDSecond CassetteThird CassetteForth CassetteDuplex unit ***40 GB Hard Disk Drive500 sheets Second Cassette Tray500 sheets Third Cassette Tray500 sheets Forth Cassette TrayToner Cartridge Memory Wired Network Duplex Hard Disk Second Cassette