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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