91DP-2330/3030MAR 2005Ver. 2.1DP-2310/30103.4. Preventive Maintenance Check ListNo. Mechanical Parts Ref.No.Cleaning Replacement/Adjustment Ref.CounterCycle(Sheet) Method Cycle(Sheet) Procedurei-ADF/ADF Unit1 ADF Roller 1728 60K Alcohol 120K Refer to2.2.1.F7-02-032 Pre Feed Roller 1731 60K Alcohol 120K3 Separation Roller 1740 60K Alcohol 120K4 Torque LimiterBushing1741 60K Alcohol 120K5 Torque LimiterSpring1742 60K Alcohol 120KScanner Unit6 Slider 211 - - 600K Refer to2.2.3.F7-02-027 Mirror 1 264 60K - -8 Mirror 2 265 60K - -9 Glass L Assembly 557 60K - -10 Glass S 559 60K - -Paper Feed Module11 Registration Roller 1121 60K Alcohol 480K Refer to2.2.9.F7-03-01/-02/-03/-0412 Reverse Clutch 1132 - - 120K13 Paper Feed Roller 1144 60K Alcohol 120K14 C25 Gear Roller 1145 60K Alcohol 120K15 Reverse ClutchAssembly1146 - - 120K16 Roller Cleaner 1229 60K Dry soft cloth 240K F7-02-0117 Separator Pad 1242 - - 60KReverse Roller 1291 60K Alcohol 120K F7-03-0018 Feed Roller 1244 60K Alcohol 120K19 Intermediate Roller 2306 60K Alcohol - F7-02-01Bias Transfer Unit20 Bias Transfer Roller(BTR)1221 60K Dry soft cloth 120K Refer to2.2.7.F7-02-0121 CDS PC Board 1986 60K Dry soft cloth -Process Unit- Developer - - - 120K Refer to2.2.4.F7-02-0922 Cleaning Blade 704 - - 120K F7-01-0623 Cleaning Roller 706 - - 120K24 Scoop Sheet 710 - - 120K25 OPC Drum 716 - - 60K F7-02-0526 Front Cleaning Felt 717 - - 120K F7-02-0627 Rear Cleaning Felt 718 - - 120K28 Cleaning Sponge 720 - - 120K29 Bias Charge Roller 725 60K Dry soft cloth 120K