02/2000
4-1
DocuPrint N2125
Repair-Adjustment
Initial Issue
4 Repair-Adjustment
Introduction...................................................................................................................... 4-3
Covers and Trays
REP 1.1 Left Interface Cover Assembly.......................................................................... 4-5
REP 1.2 Left Cover......................................................................................................... 4-5
REP 1.3 Option Cover..................................................................................................... 4-6
REP 1.4 Top Cover Assembly......................................................................................... 4-6
REP 1.5 Right Cover....................................................................................................... 4-7
REP 1.6 Front Cover Assembly ...................................................................................... 4-8
REP 1.7 Left Front Cover................................................................................................ 4-8
REP 1.8 Rear Cover Assembly....................................................................................... 4-9
REP 1.9 Rear Face Up Cover Assembly........................................................................ 4-10
REP 1.10 Interlock Cover................................................................................................ 4-10
REP 1.11 Left Plate Assembly........................................................................................ 4-11
REP 1.12 Plate Handle ................................................................................................... 4-11
Tray 1
REP 2.1 Retard Roll Assembly ....................................................................................... 4-13
REP 2.2 Friction Clutch Assembly .................................................................................. 4-14
REP 2.3 Retard Spring.................................................................................................... 4-15
REP 2.4 Motor Assembly................................................................................................ 4-16
REP 2.5 Connector and Socket Guide............................................................................ 4-17
Paper Feed (Tray 1)
REP 3.1 Paper Feeder.................................................................................................... 4-19
REP 3.2 Turn Roll Assembly........................................................................................... 4-19
REP 3.3 Tray 1 No Paper Actuator................................................................................. 4-20
REP 3.4 Stack Height Sensor......................................................................................... 4-21
REP 3.5 Low Paper Sensor ............................................................................................ 4-21
REP 3.6 Feed Clutch Assembly...................................................................................... 4-22
REP 3.7 Feeder Assembly.............................................................................................. 4-23
REP 3.8 Paper Feed Rolls.............................................................................................. 4-24
REP 3.9 Feeder PWB ..................................................................................................... 4-24
REP 3.10 Feeder Socket................................................................................................. 4-25
REP 3.11 Size Sensor Housing ...................................................................................... 4-26
REP 3.12 Size Sensor Actuators .................................................................................... 4-27
REP 3.13 Tray 1 Size PWB............................................................................................. 4-28
REP 3.14 Size Harness Assembly.................................................................................. 4-28
Paper Feed (MBF)
REP 4.1 MBF Chute Assembly....................................................................................... 4-29
REP 4.2 MBF Feed Roll Assembly ................................................................................. 4-29
REP 4.3 MBF Feed Roll.................................................................................................. 4-30
REP 4.4 Tray Bottom Assembly...................................................................................... 4-31
REP 4.5 MBF No Paper Actuator.................................................................................... 4-32
REP 4.6 Tray Pick Up ..................................................................................................... 4-32
REP 4.7 Retard Pad Assembly....................................................................................... 4-33
REP 4.8 MBF No Paper Sensor...................................................................................... 4-33
REP 4.9 Pick Up Solenoid............................................................................................... 4-34
REP 4.10 Envelope Connector Assembly....................................................................... 4-35
Paper Transportation
REP 5.1 Paper Handler Assembly.................................................................................. 4-37
REP 5.2 Toner Sensor.................................................................................................... 4-38
REP 5.3 Registration Actuator ........................................................................................ 4-39
REP 5.4 Registration Sensor .......................................................................................... 4-40
REP 5.5 Registration Clutch............................................................................................ 4-40
REP 5.6 Rubber Registration Roll................................................................................... 4-41
Exit Assembly and Fuser
REP 6.1 Transport Chute Assembly ............................................................................... 4-43
REP 6.2 Fuser Assembly................................................................................................ 4-43
REP 6.3 Fuser Harness Assembly.................................................................................. 4-44
REP 6.4 Exit Chute Assembly......................................................................................... 4-45
REP 6.5 Exit Motor Assembly......................................................................................... 4-46
REP 6.6 Stack Full Sensor.............................................................................................. 4-46
REP 6.7 Mid 1 & Mid 2 Roll Assemblies ......................................................................... 4-47
REP 6.8 Stack Full Actuator............................................................................................ 4-49
REP 6.9 Fuser Upper Cover Assembly/ Heat Rod.......................................................... 4-50
Xerographics
REP 7.1 BTR Assembly.................................................................................................. 4-51
REP 7.2 Print Cartridge Top Guide Assembly ................................................................ 4-51
REP 7.3 Print Cartridge Sensor Assembly...................................................................... 4-52
REP 7.4 Laser Assembly ................................................................................................ 4-53
REP 7.5 Print Cartridge Side Guide................................................................................ 4-53
Main Drive
REP 8.1 Main Motor Assembly ....................................................................................... 4-55
REP 8.2 Main Drive Gear Assembly............................................................................... 4-55
Electrical
REP 9.1 Fan Assembly................................................................................................... 4-57
REP 9.2 System Controller PWB.................................................................................... 4-57
REP 9.3 Print Engine Controller PWB............................................................................. 4-58
REP 9.4 5VDC PWB....................................................................................................... 4-59
REP 9.5 LVPS PWB........................................................................................................ 4-60
REP 9.6 HVPS PWB....................................................................................................... 4-60
REP 9.7 Connector PWB ................................................................................................ 4-61
REP 9.8 Main Switch....................................................................................................... 4-62
REP 9.9 Front Interlock Switch Assembly....................................................................... 4-63
REP 9.10 Rear Interlock Switch Assembly ..................................................................... 4-63
REP 9.11 Offset Catch Tray Harness Assembly............................................................. 4-64
REP 9.12 Duplex Harness Assembly.............................................................................. 4-64
Offsetting Catch Tray (OCT)
REP 10.1 Offset Catch Tray (OCT)................................................................................. 4-67
REP 10.2 Exit Tray Extension......................................................................................... 4-67
REP 10.3 Exit Tray.......................................................................................................... 4-68
