CLC 5100/4000 Service GuideF. Periodic Maintenance Items:clean :replace :lubricate :adjustUnit PartEvery50,000copiesEvery80,000copiesEvery100,000copiesEvery500,000copiesOther RemarksCopyboard glass Copyboard cover Ozone filter Dust-roofing filter Toner filter ExternalsPre-fixing duct toner filter Or 1 yearOptical Scanner rail At time ofreplacing thescanning lampDust-proofing glass At time ofreplacing the drumScanner mirror(No. 1 through No. 3) At time ofreplacing thescanning lamp(i.e., beforeadjusting theCCD).Reflecting shade Optical pathStandard white plate At time ofreplacing thescanning lamp.Primary grid wire Primary/Pre-primarycharging wire Primary charging wirecleaning pad Primary/Pre-primarycharging wire Separation/Pre-fixingcharging wire Separation/Pre-fixingcharging wire cleaningpadSeparation/Pre-fixingcharging gut wire ChargingSeparation/Pre-fixingcharging assembly Scoop-up sheet No. 2 scoop-up sheet Cleaner side seat Cleaner end seal CleanerCleaning blade Developing upper cover DevelopmentDeveloping assembly end At time ofreplacing thedrum.CLC 5100/4000 Service Guide Rev. 0 October 2003 Page 14