Aiwa NSX-AJ20 Manuel de service Page 273
- Page / 298
- Table des matières
- MARQUE LIVRES
Noté. / 5. Basé sur avis des utilisateurs
2AV/X
2-3-7
2-3
The main PCB (MPCB) consists of the main CPU and operation unit CPU. The main CPU IC23 communicates with other
PCBs and controls memory copying, the image processing system and the engine drive system. The operation unit CPU
IC10 controls the LCD display and the entire operation section.
The main CPU IC23 operates on an 8-bit bus. It uses the SRAM IC39 and IC40 for work memory and backup memory. In
accordance with the control program in FEEPROM IC28, the main CPU IC23 communicates with the operation unit CPU,
printer controller, fax unit and finisher via the serial communication function in the CPU and XIO IC43 and IC43. The main
CPU IC23 controls ASIC MCP IC22 and CODEC IC46 during memory copying for sort and rotation copies. The main CPU
IC23 also controls the CCD PCB (CCDPCB), which is for image input control, and the LSU, which is for image output control
via the image processing ASIC MIP IC15, and drives the machine, conveys paper and detects abnormalities via XIO IC42
and IC43.
The operation unit CPU IC10 operates on an 8-bit bus. It uses the SRAM IC19 for work memory. In accordance with the
control program in FEEPROM IC16, which also contains LCD display fonts, the operation unit CPU IC10 controls key
switches and LEDs on the operation unit PCB (OPCB) and controls the LCD display via the LCD controller IC12.
- Published in Oct.’00 1
- 842AV110 1
- Double-pole/neutral fusing 2
- Safety precautions 3
- 1. Installation Precautions 5
- 3. Miscellaneous 7
- CONTENTS 8
- 1-6 Assembly and Disassembly 10
- 2-1 Mechanical construction 11
- 2-2 Electrical Parts Layout 11
- 2-3 Operation of the PCBs 11
- 2-4 Appendixes 11
- 1-1-1 Specifications 12
- ‡fi ) ^& @ ! 0 9 8 6 5 1 18
- 1-1-3 Machine cross section 19
- 1-1-4 Drive system 20
- As viewed from machine rear 21
- 1-2-1 Drum 22
- 1-2-2 Developer and toner 22
- (1) Installation procedure 24
- Light source unit 1 pins 25
- Light source unit 2 pin 25
- Original detection switch 28
- Front cursor 29
- Rear cursor 29
- Drawer claw spacers 29
- Drawer spacers 29
- Fulcrum of the drawer lift 29
- Developing unit 31
- 12-pin connector 32
- Blue screws 32
- Waste toner tank 32
- Toner cartridge release lever 34
- Toner cartridge 34
- 1-3-3 Copier management 37
- ISU cover 47
- BVM4 × 6 screws 48
- BVM4 × 4 screw 48
- High temperature 48
- 2-pin receptacle 49
- 1-4-1 Maintenance mode 50
- U034 U066 U071 63
- U034 U067 U072 64
- Description 66
- DF input light luminosity 66
- Setting range 66
- Initial setting 66
- 0 to 8 1 66
- 011 024 015 68
- 001 000 000 68
- 004 004 000 68
- (1) (2) (3) 71
- (4) (5) (6) 71
- (7) (8) (9) 71
- Toner sensor control voltage 75
- 0 to 255 155 75
- ≥ 1ST TEMP 78
- Maintenance cycle 86
- 0 to 600 100 1000 (copies) 86
- 0 to 200 (copies) 70 89
- U053 U065 U070 112
- Original Copy 113
- Reference 114
- 1 2 3 123
- 4 5 6 123
- 7 8 9 123
- U402 U403 U404 144
- 1-5-1 Paper misfeed detection 153
- DFSW (ST) 1 155
- 1. Jam at power-on 156
- 2. Paper feed section 156
- Paper size + 2000 ms 157
- 3. Paper conveying section 158
- 4. Fixing section 158
- 5. Eject section 159
- 1-5-2 Self-diagnosis 164
- See page 1-5-22 169
- (13)Paper creases. Causes 174
- 1-5-4 Electrical problems 177
- 1-5-5 Mechanical problems 182
- Shaft handle retainer 185
- Paper feed cluth 185
- Cutout Stop ring 185
- Stop ring 186
- Upper paper feed pulleys 186
- Drawer drive motor 187
- Paper conveying unit 188
- Connector 188
- Lower left cover 188
- Bypass paper feed pulley 189
- Left registration roller 190
- Upper bypass cover 191
- (P. 1-6-36) 192
- (P. 1-4-14) 192
- • 15 cpm 193
- Figure 1-6-19b 193
- (P. 1-6-37) 195
- (P. 1-4-15) 195
- Center line of printing 196
- Correct image Output 196
- –1.5–1.5 197
- Figure 1-6-22b 200
- Right cover 201
- Contact glass 201
- Metal plate 201
- Scanner wire 202
- Scanner tension spring 202
- Scanner motor unit 203
- Frame securing tools 204
- Mirror 2 Frame 204
- Eject tray 206
- LSU front spacer 207
- LSU right spacer 207
- Positioning pins 211
- Correct image 212
- Mirror 2 frame 213
- (P. 1-6-10) 218
- Scanner center line 219
- (P. 1-6-15) 220
- (P. 1-4-46) 220
- Image formation unit 222
- 1-6-5 Drum section 225
- Bias wire 226
- Doctor blade cover 226
- Doctor blade 226
- Adjustment screws 226
- Transfer roller assembly 227
- Cleaning blade 228
- M3 retainers 229
- Cleaning lower seal assembly 229
- 1-6-9 Fixing section 230
- Fixing unit thermister 231
- Heat roller separation claws 231
- Fixing heater 232
- Press springs 234
- Fixing guide plate 235
- 1-7-1 Replacing the main PCB 236
- Upper shield 238
- • Inverter PCB: VR1, VR2 241
- 2-1-1 Paper feed section 242
- Tungsten wire 245
- Main charger assembly 245
- Shield grid 245
- 2-1-3 Optical section 247
- 2-1-4 Developing section 251
- Cleaning spiral 258
- Lower cleaning seal 258
- Cleaning lamp (CL) 259
- Light-blocking lumirro 259
- 2-1-8 Fixing section 260
- 2-2-1 Electrical parts layout 262
- 2-3-1 Power source PCB 267
- 2-3-2 Main PCB 270
- REV:2 271
- • 20 cpm copier 272
- 2-3-3 CCD PCB 280
- 2-3-4 Laser diode PCB 281
- /2" × 8 284
- (20 cpm copier) 291
- Maintenance parts list 292
- • Copier 293
- • Optional drawer 295
- Printed in Holland 298
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