Service ManualSummary of Product3-6 Samsung ElectronicsExpand the printer capacity• Your printer has 128 MB of memory which can be expanded to 512 MB.• A Network interface enables network printing. You can add an optional network interfacecard to the ML-4550. The ML-4551N and ML-4551ND come with a built-in networkinterface, 10/100 Base TX.• You can add 500-sheet optional trays to your printer. These trays let you add paper to theprinter less often.• A PostScript 3 Emulation* (PS) enables PS printing.Use the optional hard diskYou can install an optional hard disk in your printer.• The 40 GB hard disk can store the data from your computer in the print queue. This decreases the workload of thecomputer.• You can use various print features, such as storing a job in the hard disk, proofing a job, and printing private docu-ments.• You can manage the print jobs in the print queue of the printer hard disk. For details.Print in various environments• You can print in Windows 98/Me/NT 4.0/2000/XP/2003.• Your printer is compatible with Linux and Macintosh.• Your printer comes with both Parallel and USB interfaces.• You can also use a network interface. The ML-4551N and ML-4551ND come with a built-in network interface, 10/100Base TX. However, you need to install the optional wired network interface card to the ML-4550.Printer FeaturesThe table below lists a general overview of features supported by your printer.(I: Installed, O: Option)Features ML-4550 ML-4551N ML-4551NDIEEE 1284 Parallel I I IUSB 2.0 I I INetwork Interface O I I(Ethernet 10/100 Base TX)Hard Disk O O OPostScript* Emulation I I IDuplex Unit O O IOptional Tray 2 O O OOptional Tray 3 O O OOptional Tray 4 O O O
