_____________________________________________________ xviiOptical Unit Lens Cleaning ............................................. 9-17Interior Cleaning .............................................................. 9-20Exterior Cleaning ............................................................ 9-22Technical Specifications ........................................................ 9-23Printer Memory Requirements ........................................ 9-26Warranty and Service Options ............................................... 9-26Limited Warranty ................................................................... 9-27Effect of Consumables on Warranty ...................................... 9-28Chapter 10 - Options .................................................................. 10-1Introduction ............................................................................ 10-3Printer Options ....................................................................... 10-3Paper Handling Options ......................................................... 10-3Lower Feeder Unit (LFU) ............................................... 10-4Installing the LFU ..................................................... 10-4Removing the LFU ................................................. 10-12Duplexer ........................................................................ 10-13Installing the Duplexer ............................................ 10-13Removing the Duplexer .......................................... 10-17Controller Board Upgrades .................................................. 10-18Removing the Controller Board .................................... 10-18Installing SODIMM and Firmware Upgrades ............... 10-20RAM Upgrades (SODIMMs) ................................. 10-20Common Specifications for all Densities ............... 10-21Supported Densities and Organizations .................. 10-21Resolution Firmware Upgrade ................................ 10-22Installing SODIMMs or SIMMs ............................. 10-2210/100BaseT Upgrade ................................................... 10-25Internal IDE Hard Drive Upgrade ................................. 10-28Replacing the Controller Board Panel ........................... 10-28Chapter 11- Troubleshooting .................................................... 11-1Introduction ............................................................................ 11-3Status Messages ..................................................................... 11-3Power and Setup Issues ........................................................ 11-13Color Issues .......................................................................... 11-17Print Quality Issues .............................................................. 11-19Mechanical Issues ................................................................ 11-30Media Jams .......................................................................... 11-31