Sharp SF-1020 Manual de Serviço Página 77
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2-2. Note for adjustments
1. Only the exposure balance adjustment, the blank lamp adjust-
ment, and the copy lead edge adjustment can be performed
individually.
For the other adjustments, follow the flowchart below.
1. Mechanical reference position adjustment (without copying)
2. Adjustment while
copying
A. No. 2/3 mirror unit parallelism adjustment
Vertical skew copy adjustment --- Manual adjustment
B. Check the following preset values according to the lens focus rank.
Lens reference position adjustment --- SIM 48-01
No. 4/5 mirror reference position adjustment --- Manual adjustment
1. Image distortion,
center shift check
2. Normal (x 1.00),
zooming (x 2.00)
resolution (focus)
check
3. Normal copy
magnification ratio
(vertical, horizontal)
check
4. Exposure balance,
blank lamp position,
lead edge variation
check
END
Image distortion
Vertical skew copy adjustment
Horizontal skew copy adjustment
Center shift:
Lens center shift adjustment
Resolution (focus) adjustment
Normal: Adjust with the No. 4/5
mirror adjustment screw.
Zooming: Adjust with the zooming
cam.
Copy magnification ratio adjustment
Vertical copy magnification ratio
adjustment
Horizontal copy magnification
ratio adjustment
Exposure balance adjustment
Blank lamp position adjustment
Copy lead edge adjustment
(Including the void area
adjustment.)
YES
NO
YES
NO
YES
NO
YES
NO
7 – 3
- SERVICE MANUAL 1
- Contents 2
- [1] PRODUCT OUTLINE 5
- [2] PRODUCT SPECIFICATIONS 6
- 3. Supply parts 8
- 4. Optional specifications 9
- [3] PRODUCT VIEWS 11
- 11 12 13 12
- Clutches and solenoids 14
- 6. Rollers, mirrors, etc 17
- 1. Unpacking 18
- 2. Installation 18
- Grounding 19
- 4. Charger cleaning 20
- 5. Developing unit setting 21
- Hand carry strap 22
- Developing unit lever 22
- Front cabinet 22
- Copy tray 22
- 9. Center shift adjustment 24
- 10. Label attachment 24
- (SF-CM15) installation 25
- (SF-CM16) 26
- 16P connector 27
- 13. Tray paper size selection 28
- (Described with the SF-1020) 28
- 4. Attach the tray 29
- Roller release arm 30
- Paper feed roller shaft 30
- Paper feed roller 30
- 2. Developing section 31
- (3) Optical section 32
- • Brightness (F8.5) 33
- • Focus: (195mm ±1%) 33
- 2. Basic operations 35
- • Photo density copy mode 35
- (2) Dirt correction 36
- (4) Copy process 37
- (2) Process diagram 38
- Step 1 (Main Charging) 39
- Step 2 (Exposure) 39
- Step 3 (Development) 40
- Step 4 (Transfer) 41
- Step 5 (Separation) 41
- Step 6 (Cleaning) 42
- Step 7 (Discharging) 42
- (6) Process control function 43
- Process control 44
- Process control timing 44
- Drum marking 44
- Basic structure 44
- (5) TRANSPORT/FUSING SECTION 45
- (6) Fusing paper exit section 45
- Thermo control 46
- (DDM rotary encoder sensor) 47
- [6] DISASSEMBLY AND ASSEMBLY 48
- 1-3. PS front roller ass’y 49
- 1-4. Separation roller 49
- 2. Transport unit 50
- PS mylar 51
- 3. Fusing section 52
- Optical adjustment plate 54
- Mirror base B 56
- Mirror base positioning plate 57
- No.2/3 mirror unit 57
- Horizontal scales 58
- Projections 58
- 6) Lens wire replacement 60
- L drive pulley 61
- Lens unit 61
- Notch in the optical 62
- 5. High voltage section 63
- 6. Process section 64
- 7. Developing section 67
- MAG roller 68
- 9. Frame major parts 69
- 9-2. Power unit 70
- 9-3. Tray size detecting PWB 70
- (SF-2020) 71
- 10-1. Separation roller 72
- Clearance gauges 75
- 2. Optical system 76
- 2-2. Note for adjustments 77
- No.4/5 drive holder 78
- • When the lens is replaced 79
- Lens value label 80
- Zooming cam 81
- 10 20 90 100 110 82
- G. Vertical skew adjustment 84
- H. Horizontal skew adjustment 84
- Mirror base rail handle 85
- Loosen Loosen 85
- 1 scale = 1mm 85
- I. Center shift adjustment 86
- K. Copy lead edge adjustment 87
- • RRC-A = 6.151 × (L1 – L2) 88
- 10 20 30 40 89
- [8] SIMULATION 91
- 4. List of simulations 92
- Cassette size switch table 93
- 5. Details of simulations 94
- 0.5s 0.5s 0.5s 95
- 0.5s 0.5s 96
- PD1 PD2 PD3 PD4 PD5 PD6 102
- Document lead eddge 102
- 4 Set the obtained values 108
- 6. User simulation 110
- (2) User simulation 111
- [9] SELF DIAGNOSTICS 112
- PLACEMENT 115
- 4. Set value recording sheet 117
- 5. Memory simulation list 118
- [11] MAINTENANCE 119
- [12] ELECTRICAL SECTION 120
- Power ON 121
- (1) Block diagram 122
- SC3041K12F 123
- 4 Internal block diagram 124
- (3) I/O (IC8) CXD1095Q 127
- 1 General 127
- 2 Features 127
- 3 Pin arrangement 127
- DTA123YS 130
- 2 Operation 132
- M51953 BL 133
- (12) Operation panel 134
- HOUND AC CIRCUIT 135
- (14) ADU circuit description 136
- (2) ADU CPU (IC1) 137
- Phase B Phase B 139
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