Installing Printer Options9.9Installing a Duplex UnitThe printer can automatically print on both sides of a sheet ofpaper with an optional duplex unit. This is called duplexing. Theoptional duplex unit supports the following paper sizes: letter,legal, folio, and A4.The duplex-slot cover that is located at the rear of the printermust be removed when the optional duplex unit is installed.When you use duplexing, the printer partially ejects the printedpage into the output tray, and then pulls it back to print thereverse side.To install a duplex unit:1 Turn the printer off and unplug all cables from the printer.2 Remove the tape and all packing material from the duplexunit.3 Remove the duplex-slot cover from the back of the printer.NOTE: Reinstall this cover when you are not use the duplexunit.4 Insert the duplex unit all the way into the slot until it fitsinto place.5 Reconnect the power cord and printer cable, and turn theprinter on.After installing the duplex unit, you must set the unit asinstalled in the printer properties window.6 Click the Windows Start menu.7 For Windows 9x/Me/NT4.0/2000, select Settings and thenPrinters.For Windows XP/2003, select Printers and Faxes.8 Select the Samsung ML-3560 Series PCL 6 printer iconor Samsung ML-3560 Series PS printer icon.9 Right-click on the printer icon and select Properties.10 In PCL 6 Properties, click the Printer tab and checkDuplex Unit.In PS Properties, click the Device Option tab and selectInstalled from the Duplex Unit drop-down list.11 Click OK.Printing on Both Sides of PaperAfter installing the duplex unit, you can print on both sides ofpaper. Before printing, decide how you want your documentoriented.The options are:• Long Edge, which is the conventional layout used inbook binding.• Short Edge, which is the type often used with calendars.N OTES:• Do not print on both sides of labels, transparencies,envelopes, or thick paper. Paper jamming and damage to theprinter may result.• To use double-sided printing, you can use only the followingpaper sizes: A4, Letter, Legal, and Folio, with a weight of20~24lbs (75~90g/m2).There are two ways to enable or disable the double-sidedprinting:Using the Control Panel MenuYou can use the Duplex item in the Layout menu for double-sided printing. After setting the item, set the Duplex Marginitem in the same menu, if necessary.For further details about using the control panel menu, seepage 3.2.From the Software ApplicationYou can use the printer properties window on your printerdriver. For details, see the Software Section.