III. Preventive Maintenance
3. 1
Precautions for Preventive Maintenance Service .................................
3-1
3. 2 Precautions for handling ...................................................................... 3-3
3. 3 Maintenance chart ............................................................................... 3-5
1. Replacement (For FP-D250)............................................................ 3-5
2. Replacement (For FP-D350/D350H) ............................................... 3-7
3. Replacement (For FP-D450/D600).................................................. 3-9
3. 4 Cleaning Method.................................................................................. 3-11
3. 5 Disassembly......................................................................................... 3-14
1. Multi-feed bypass............................................................................. 3-15
2. Paper feed unit................................................................................. 3-18
3. Developer unit.................................................................................. 3-21
4. Fuser unit......................................................................................... 3-25
5. Optics unit ........................................................................................ 3-30
6. Automatic duplex unit (ADU) (Option).............................................. 3-33
7. Main body ........................................................................................ 3-36
3. 6 Removal of back up battery ................................................................. 3-40
3. 7 Adjustment ........................................................................................... 3-41
1. Exposure Standard Adjustment ....................................................... 3-42
2. Copy density Sensor contamination adjustment.............................. 3-43
3. Skew / Side to side Adjustments (Printer Section) .......................... 3-44
4. Skew / Registration Adjustments (Scanner Section) ....................... 3-46
5. Lead edge / Trail edge void adjustment (Printer Section)................ 3-47
6. Laser power (PWM circuit)............................................................... 3-48
IV. PCB Connector and Signal Information
4. 1 Glossary of electrical abbreviations ..................................................... 4-1
4. 2 Main CPU PCB (FP-D250/D350 Series) ............................................. 4-7
4. 3 System Control PCB (FP-D250/D350 Series) ..................................... 4-53
4. 4 Control Panel PCB (FP-D250/D350 Series) ........................................ 4-71
1. Control Panel CPU PCB (FP-D250/D350 Series)............................ 4-71
2. Control Panel PCB A (FP-D250/D350 Series)................................. 4-77
3. Control Panel PCB B (FP-D250/D350 Series)................................. 4-81
4. Control Panel PCB C (FP-D250/D350 Series)................................. 4-82
5. Control Panel PCB D (FP-D250/D350 Series)................................. 4-84
4. 5 CCD PCB (FP-D250/D350 Series) ...................................................... 4-85
4. 6 SO DIMM PCB (FP-D250/D350 Series) .............................................. 4-88
4. 7 16 M Flash DIMM PCB (FP-D250/D350 Series) ................................. 4-94