Chapter 3 Removal and Replacement Procedures (RRPs)Chapter 3 Removal and Replacement Procedures (RRPs) CONTENTSVersion 3 2007.02.22Removal 40 MPF ROLLER (PL3.1.10) ................................................................................................. 3 - 70Removal 41 FEED ROLLER (PL3.2.53) ............................................................................................... 3 - 71Removal 42 550 SHEET FEEDER ASSEMBLY (PL12.1.1) ................................................................. 3 - 72Removal 43 550 TRAY REAR COVER (PL12.1.4)............................................................................... 3 - 73Removal 44 550 TRAY FEED ROLLER (PL12.3.29) ........................................................................... 3 - 74Removal 45 550 TRAY SEPARATOR ROLLER (PL12.5.17) (Same as the 550 TRAY FEED ROLLER). 3 -75Removal 46 MEMORY CARD (PL9.1.30)............................................................................................. 3 - 76Removal 47 MULTI PROTOCOL CARD (PL9.1.31)............................................................................. 3 - 775) 3. Replacement Steps ...............................................................................................3 - 78Replacement 1 550 TRAY SEPARATOR ROLLER (PL12.5.17) (Same as the 550 TRAY FEED ROLLER)3 - 78Replacement 2 550 TRAY FEED ROLLER (PL12.3.29) ...................................................................... 3 - 79Replacement 3 550 TRAY REAR COVER (PL12.1.4).......................................................................... 3 - 80Replacement 4 550 SHEET FEEDER ASSEMBLY (PL12.1.1) ............................................................ 3 - 81Replacement 5 FEED ROLLER (PL3.2.53) .......................................................................................... 3 - 82Replacement 6 MPF ROLLER (PL3.1.10) ............................................................................................ 3 - 83Replacement 7 SEPARATOR ROLLER (PL2.2.17) (Same as the FEED ROLLER)............................ 3 - 84Replacement 8 MPF SEPARATOR ROLLER ASSEMBLY (PL2.1.3) .................................................. 3 - 85Replacement 9 TONER CARTRIDGE SENSOR ASSEMBLY (K) (PL5.1.4)........................................ 3 - 86Replacement 10 PHOTOCONDUCTOR (PC) / DEVELOPER (DEV) DRIVE (PL8.1.2)...................... 3 - 88Replacement 11 INTERLOCK SWITCH (PL9.1.3) ............................................................................... 3 - 90Replacement 12 PRINT HEAD (PL5.1.99) ........................................................................................... 3 - 92Replacement 13 LOW VOLTAGE POWER SUPPLY (PL9.1.4) ........................................................... 3 - 94Replacement 14 HIGH VOLTAGE POWER SUPPLY (PL5.1.17) ........................................................ 3 - 96Replacement 15 FAN (PL9.1.10).......................................................................................................... 3 - 98Replacement 16 TOP COVER (PL1.1.1).............................................................................................. 3 - 99Replacement 17 MACHINE CONTROL UNIT (PL9.1.20) .................................................................. 3 - 100Replacement 18 HUMIDITY SENSOR (PL9.1.19) ............................................................................. 3 - 102Replacement 19 SHIELD ASSY ESS (REFERENCE ONLY)............................................................. 3 - 103Replacement 20 TONER DISPENSER MOTOR (PL5.1.12) .............................................................. 3 - 104Replacement 21 LED ASSEMBLY (PL5.1.15).................................................................................... 3 - 106Replacement 22 LEFT ARM ASSEMBLY(PL7.1.97).......................................................................... 3 - 108Replacement 23 ELECTRONIC SUB-SYSTEM CONTROL BOARD (PL9.1.27) ............................... 3 - 110Replacement 24 LEFT COVER (PL1.1.7) .......................................................................................... 3 - 115Replacement 25 TONER CARTRIDGE SENSOR ASSEMBLY (C), (M), (Y) (PL5.1.4) ..................... 3 - 116Replacement 26 POWER SWITCH (PL9.1.13) .................................................................................. 3 - 117Replacement 27 SIZE SWITCH ASSEMBLY (PL7.1.18) ................................................................... 3 - 118Replacement 28 RIGHT ARM ASSEMBLY(PL7.1.98) ....................................................................... 3 - 120Replacement 29 FRONT COVER (PL1.2.98)..................................................................................... 3 - 122Replacement 30 INTEGRATED FEEDER ASSEMBLY (PL3.2.99).................................................... 3 - 124Replacement 31 FEED DRIVE ASSEMBLY (PL8.1.7) ....................................................................... 3 - 128Replacement 32 MPF FEED SOLENOID (PL3.1.98) ......................................................................... 3 - 132Replacement 33 RIGHT COVER (PL1.1.6) ........................................................................................ 3 - 134Replacement 34 REAR COVER (PL1.1.4) ......................................................................................... 3 - 135
