magicolor 6100 DeskLaser User’'s GuideivDuplex (2-Sided) Printing ................................................................................4-5Manual Duplexing 4-5Auto Duplexing 4-5Printing Sample Pages ....................................................................................4-5Printing a Sample Page 4-5Updating the Printer Driver/Monitor ..............................................................4-6Updating System Software .............................................................................4-75 OptionsAdditional Media Handling .............................................................................5-2Media Cassettes 5-2Envelope Adapter 5-2Postcard Adapter (Japanese Model Only) 5-2Lower Feeder Unit (LFU) .................................................................................5-3What's in the Kit? 5-3Unpacking the LFU 5-4Installing the LFU 5-4Duplex Unit .....................................................................................................5-10Dual In-Line Memory Modules ......................................................................5-13Installation Procedure 5-13Printer Cabinet ...............................................................................................5-166 Printer Jams and TroubleshootingAutomatic Jam Recovery ................................................................................6-3Preventing Media Jams ..................................................................................6-3Understanding the Media Path .......................................................................6-5With Optional Duplex Unit 6-6Media Jam Status Messages ..........................................................................6-7