Canon PC960 Specifikace Strana 102
- Strana / 393
- Tabulka s obsahem
- ŘEŠENÍ PROBLÉMŮ
- KNIHY
Hodnocené. / 5. Na základě hodnocení zákazníků
CHAPTER 4 IMAGE FORMATION SYSTEM
COPYRIGHT
©
1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
4-8
Figure 4-105
Main
transformer
Transfer positive DC
bias generation circuit
Transfer positive DC bias ON signal
T_REV_ON*
T101
Transfer current detection signal
T_FW_S
Photo-
sensitive
drum
Transfer
charging
roller
Transfer DC bias
control signal
T_FW_DRV
Transfer bias voltage
detection signal
Transfer DC bias ON signal
T_FW_ON
High-voltage transformer
control signal
CLK32K
Transfer overcurrent detection signal
HV_LIMIT
+24V
T302
Transfer
high-voltage
transformer
Serial
communi-
cation
(Q101) (Q900)
Microprocessor
Microprocessor
DC controller PCB Composite power supply PCB
Transfer bias
detection circuit
Transfer bias
control circuit
T_FEEDBACK
D. Controlling the Transfer Roller Bias
1. Outline
The circuit shown in Figure 4-105 is used to control the voltage applied to the transfer charging
roller, and has the following functions:
• Turning on and off the transfer bias.
• Controlling the transfer bias to a constant voltage.
• Correcting the transfer bias voltage level (ATVC)
• Switching the transfer bias polarity (cleaning bias)
- FY8-13GA-000 1
- COPYRIGHT © 1999 CANON INC 2
- Printed in Japan 2
- Imprimé au Japon 2
- INTRODUCTION 3
- CONTENTS 7
- CHAPTER 6 FIXING SYSTEM 8
- CHAPTER 9 INSTALLATION 9
- CHAPTER 8 ADF 9
- APPENDIX 10
- CHAPTER 11 TROUBLESHOOTING 10
- CHAPTER 1 11
- GENERAL DESCRIPTION 11
- I. FEATURES 13
- II. SPECIFICATIONS 14
- 3. Performance 15
- Table 1-203 15
- 4. Others 17
- Table 1-204 17
- *1. 250-sheet cassette type 17
- *2. 500-sheet cassette type 17
- 5. Default Ratios 18
- Table 1-205 18
- Table 1-207 20
- III. NAMES OF PARTS 22
- B. Cross Section 25
- [6][5][4][3][2][1] 26
- [13] [12] 26
- [11] [9] [8] [7][10] 26
- [8] [9][7][6][1] 27
- [15] [14] [12] [10][11][13] 27
- [5][4][3][2] 27
- Table 1-401 28
- VI. IMAGE FORMATION 32
- CHAPTER 2 35
- BASIC OPERATION 35
- Manual feed block 37
- CHAPTER 2 BASIC OPERATION 38
- Figure 2-103 39
- Table 2-101 40
- Figure 2-105 43
- Figure 2-106 44
- (220/240V model only) 45
- Figure 2-108 46
- Figure 2-109 47
- CHAPTER 3 49
- EXPOSURE SYSTEM 49
- CHAPTER 3 EXPOSURE SYSTEM 52
- C. Lens Drive System 53
- D. Scanner Drive System 54
- II. EXPOSURE SYSTEM 59
- A. Scanner Drive Assembly 63
- Figure 3-306 66
- Figure 3-311 69
- Top View 70
- Figure 3-329 77
- B. Lens Drive Assembly 81
- C. Exposure System 87
- CHAPTER 4 93
- IMAGE FORMATION SYSTEM 93
- I. IMAGE FORMATION SYSTEM 95
- Figure 4-101 96
- Figure 4-102 97
- Figure 4-103 99
- COPYRIGHT 100
- Figure 4-107 106
- Microprocessor 110
- II. DISASSEMBLY/ASSEMBLY 116
- A. Cartridge 117
- B. Transfer Charging 119
- Assembly 119
- C. Blank Exposure 120
- Lamp PCBs 121
- CHAPTER 5 123
- PICK-UP/FEEDING SYSTEM 123
- I. PICKUP/FEEDING SYSTEM 125
- Pickup clutch solenoid 128
- INTR SCFW SCRV LSTR STBY 129
- 0.7sec (approx.) 129
- SCFW SCRV SCFW SCFWSCRV 132
- 19th copy 132
- D. Detecting Jams 136
- STBY INTR SCFW 138
- No paper 138
- Jam check 141
- Delivery sensor (PS3) 141
- Main motor (M1) 141
- A. Pickup Assembly 143
- Hex wrench 145
- Pickup roller shaft 145
- Pickup gear unit 145
- [4] [4][5] 149
- Figure 5-218 151
- B. Multifeeder Assembly 152
- [2] [1] [1] [3] 153
- C. Single-feeder Assembly 155
- Figure 5-229 156
- D. Feeding Assembly 157
- E. Registration Roller 158
- F. Delivery Assembly 160
- CHAPTER 6 163
- FIXING SYSTEM 163
- I. OPERATIONS 165
- Figure 6-101 166
- Figure 6-102 166
- CHAPTER 6 FIXING SYSTEM 167
- Figure 6-104 169
- Table 6-102 169
- A. Fixing Assembly 175
- CHAPTER 7 179
- Figure 7-101 181
- II. POWER SUPPLY SYSTEM 183
- B. Power Supply Circuit 184
- Figure 7-202 185
- III. DISASSEMBLY/ASSEMBLY 187
- A. External Covers 188
- Figure 7-308 192
- Lighter Darker 195
- Auto Exposure 195
- Manual Exposure 195
- Timer Saver 195
- C. Copyboard Glass 196
- D. Main Motor/Main Drive 197
- E. Electrical System 201
- Figure 7-330 203
- CHAPTER 8 205
- A. Outline 207
- B Basic Construction 208
- Figure 8-103 209
- C. Basic Operations 210
- CHAPTER 8 ADF 211
- Original detection 212
- Registration paper 213
- 1st original 214
- Separation pad 214
- Pickup roller 1 214
- Pickup roller 2 214
- Registration roller 214
- Delivery sensor 215
- Feeding belt 215
- Pickig up 217
- Feeding 1 217
- 2nd original 218
- Figure 8-120 219
- Figure 8-119 219
- H. Controlling the Belt Motor 221
- I. Detecting Original Jams 222
- J. Power Supply 223
- A. Removing the ADF 225
- B. External Covers 227
- C. Drive System 229
- Figure 8-215 231
- D. Feeding System 232
- Figure 8-219 233
- CHAPTER 9 241
- INSTALLATION 241
- I. SELECTING A SITE 243
- Shipping attachment [1] 244
- Shipping attachment [2] 245
- Protective sheet 246
- CHAPTER 9 INSTALLATION 247
- Original tray 248
- Rear end guide plate 251
- Shift down, and pull off 251
- • 500-sheet cassette 253
- • 250-sheet cassette 253
- III. MOVING THE MACHINE 254
- CHAPTER 10 257
- MAINTENANCE AND SERVICING 257
- II. DURABLES AND CONSUMABLES 258
- III. SCHEDULED SERVICING 258
- CHAPTER 11 264
- TROUBLESHOOTING 264
- CHAPTER 11 TROUBLESHOOTING 266
- I. MAINTENANCE AND INSPECTION 268
- 2.0 ± 1.5mm 270
- 2.5 ± 1.5mm 271
- Figure 11-207 (rear) 273
- Figure 11-208 (front) 273
- 1 mirror mount [1] 274
- Figure 11-209 (rear) 274
- Figure 11-210 (front) 274
- Figure 11-212 276
- Figure 11-217 279
- Face without a marking 285
- [3] [13] 288
- Figure 11-235 289
- Figure 11-238 (rear) 291
- Figure 11-239 (front) 291
- No. 1 mirror mount [1] 292
- Figure 11-240 (rear) 292
- Figure 11-241 (front) 292
- A4/LTR copy papper 295
- Copy image 298
- L3=10 ± 2.5mm 298
- L4=10 ± 2.0mm 301
- C. Electrical 306
- J101J131 307
- A. Making Initial Checks 313
- 319
- 21 The copy is blank 324
- 22 The copy is solid black 325
- 4 E002, E003 328
- 14 AC power fails to turn on 332
- 15 DC power fails to turn on 333
- 16 Pickup fails. (cassette) 334
- 23 The lens fails to turn on 338
- [3] [2] [1] 340
- 1 Pickup Assembly 341
- 2 Separation/Feeding Assembly 342
- 3 Fixing/Delivery Assembly 342
- B. Faulty Feeding 343
- ELECTRICAL PARTS 344
- B. Switches 345
- C. Lamp, Heater, Motor, Etc 346
- Figure 11-604 347
- Figure 11-605 348
- VII. SELF DIAGNOSIS 351
- ( ) 352
- A. GENERAL TIMING CHART 356
- Preparing for 357
- B. SIGNALS AND ABBREVIATIONS 358
- C. GENERAL CIRCUIT DIAGRAM 360
- ADF CONTROLLER PCB 361
- H. AE SENSOR CIRCUIT DIAGRAM 384
- I. SENSOR CIRCUIT DIAGRAM 385
- N. SPECIAL TOOLS 390
- O. SOLVENTS/OILS 391
- This pubication is printed on 393
- 70% reprocessed paper 393
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