3-2. ADF and Scanner . . . . . . . . . . 3-6
3-2-1. Document Feed and Pick-up Rollers . . 3-6
3-2-2. Document Separation Roller . . . . . 3-7
Separation Roller Adjustment . . . . . . 3-8
3-2-3. Fluorescent Lamp . . . . . . . . . 3-9
3-2-4. Fluorescent Lamp Driver . . . . . . 3-9
3-2-5. SBU . . . . . . . . . . . . . . 3-10
Scanner Adjustments . . . . . . . . . 3-11
3-2-6. Tx Motor Timing Belt Adjustment . . . 3-19
3-3. Printer - Charge . . . . . . . . . . . 3-20
3-3-1. Charge Corona Wire . . . . . . . . 3-20
3-4. Printer - Exposure . . . . . . . . . . 3-22
3-4-1. Second Cylindrical Lens . . . . . . 3-22
3-4-2. Pentagonal Mirror and Motor . . . . 3-23
3-4-3. Pentagonal Mirror Motor Driver
(SMDR) . . . . . . . . . . . . . 3-25
3-4-4. LSD . . . . . . . . . . . . . . 3-25
3-4-5. Laser Diode Unit . . . . . . . . . 3-26
3-5. Printer - Paper Feed . . . . . . . . . 3-27
3-5-1. Upper Paper Feed and Pick-up
Rollers . . . . . . . . . . . . . 3-27
3-5-2. Upper Paper Separation Roller and
Spring Clutch . . . . . . . . . . 3-28
3-5-3. Lower Paper Feed and Pick-up
Rollers . . . . . . . . . . . . . 3-29
3-5-4. Lower Paper Separation Roller . . . . 3-29
3-5-5. Master Belt Drive Motor Timing Belt
Adjustment . . . . . . . . . . . 3-30
3-5-6. Upper Paper Lift Mechanism
Adjustment . . . . . . . . . . . 3-30
3-6. Printing - Development . . . . . . . . 3-31
3-6-1. Development Unit . . . . . . . . . 3-31
3-6-2. Toner Metering Blade . . . . . . . . 3-31
3-6-3. Development Roller . . . . . . . . . 3-32
3-7. Printer - Transfer . . . . . . . . . . . 3-33
3-7-1. Transfer Corona Wire . . . . . . . . 3-33
3-7-2. Transfer Entrance Guide Plate
Adjustment . . . . . . . . . . . . 3-35
3-8. Printer - Fusing . . . . . . . . . . . 3-36
3-8-1. Fusing Unit . . . . . . . . . . . . 3-36
3-8-2. Thermostat . . . . . . . . . . . . 3-38
3-8-3. Fusing Lamp/Thermistor Assembly . . . 3-38
3-8-4. Hot Roller . . . . . . . . . . . . 3-39
3-8-5. Pressure Roller . . . . . . . . . . 3-40
3-8-6. Hot Roller Strippers . . . . . . . . . 3-40
3-9. Printer - Quenching . . . . . . . . . . 3-42
3-9-1. Quenching Lamp . . . . . . . . . 3-42
3-10. PUBs . . . . . . . . . . . . . . . 3-43
3-10-1. SPU, VPU, G3CCU, and Modem . . . 3-43
3-10-2. SCU and MBU . . . . . . . . . . 3-44
3-10-3. UIB . . . . . . . . . . . . . . 3-45
3-10-4. DSB . . . . . . . . . . . . . . 3-45
3-10-5. DRU . . . . . . . . . . . . . . 3-46
3-10-6. Power Pack . . . . . . . . . . . 3-46
3-10-7. PSU . . . . . . . . . . . . . . 3-48
3-10-8. Hard Disk . . . . . . . . . . . . 3-48
3-10-9. G3NCU . . . . . . . . . . . . . 3-50
3-10-10. LIB . . . . . . . . . . . . . . 3-50
3-10-11. BSRU . . . . . . . . . . . . . 3-51
3-11. Others
. . . . . . . . . . . . . . 3-51
3-11-1. Gas Spring Adjustment . . . . . . . 3-51