16contents84 Cleaning your machine84 Cleaning the outside84 Cleaning the inside84 Cleaning the transfer unit84 Cleaning the scan unit85 Maintaining the Toner cartridge85 Toner cartridge storage85 Handling instructions85 Use of non-Samsung and refilled toner cartridge85 Estimated cartridge life85 Replacing the toner cartridge86 Maintaining the imaging unit86 Expected cartridge life87 Replacing the imaging unit88 Maintenance PartsTROUBLESHOOTING89 89 Tips for avoiding paper jams89 Clearing document jams90 Misfeed of exiting paper90 Roller misfeed91 Clearing paper jams91 In the tray 192 In the optional tray93 In the optional high capacity feeder95 In the multi-purpose tray95 In the fuser area or around the toner cartridge95 In the paper exit area96 In the duplex unit area96 In the stacker (finisher)97 Understanding display messages100 Solving other problems100 Touch screen problem100 Paper feeding problems101 Printing problems102 Printing quality problems104 Copying problems105 Scanning problems105 Fax problems106 Common PostScript problems107 Common Windows problems107 Common Linux problems109 Common Macintosh problemsORDERING SUPPLIES AND ACCESSORIES110 110 Supplies110 Accessories111 How to purchaseINSTALLING ACCESSORIES112 112 Precautions to take when installing accessories112 Installing a memory DIMM112 Installing a memory module113 Activating the added memory in the PS printer properties113 Replacing the Stapler114 Enabling Fax feature after installing the fax option kit