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FAX-L1000 Chapter 3: Technical Reference
b) Electrostatic latent image formation block
This block follows two steps to produce an electrostatic latent image on the photosensitive
drum.
When “Laser beam exposure” of this block is completed, negative charge remains in the
unexposed “dark” areas; however, those in the exposed “light” areas are eliminated.
This image of negative charges on the drum is invisible to the human eye, so it is called an
“electrostatic latent image.”
Figure 3-19 Surface Potential
b-1) Primary charging
Figure 3-20 Primary Charging
In preparation for the latent image formation, a uniform negative potential is applied to the
photosensitive drum surface. For primary charging, the printer uses the charging method,
which directly charges the drum.
The primary charging roller is made of conductive rubber. In addition to DC bias, AC bias
is also applied to the primary charging roller to keep the potential on the drum surface
uniform. The DC bias changes with the developing DC bias.
0
-100
-500
Time t
Exposed area
Unexposed
area
Laser beam exposure
Transfer
Primary
charging
Primary
charging
Surface potential (V)
Photosensitive drum
Primary charging roller
AC bias
DC bias
- HY8-10AN-000FEB. 2000 1
- I. MEANINGS OF MARKS 3
- II. ABOUT THIS MANUAL 4
- III. REVISION HISTORY 5
- IV. TABLE OF CONTENTS 6
- V. ILLUSTRATION INDEX 12
- Chapter 5: Appendix 15
- Chapter 1 19
- Safety and 19
- Precautions 19
- 1. DANGER TO PERSONNEL 21
- 1.1.2 Telephone line 22
- 1.3 Fire 24
- 1.4 Moving and Rotating Parts 26
- 1.5 Laser Beams 28
- Laser light 29
- Laser shutter 29
- Laser/Scanner unit 29
- FX6 toner cartridge 29
- General Precautions 30
- Temperature 32
- Relative humidity 32
- Protective Shutter 34
- 2.3.2 Lubrication points 36
- 2.3.3 Scanner section 36
- Chapter 4, 3. CLEANING 37
- 2.3.5 Paper load section 38
- Cassette pickup roller 38
- 2.3.6 Control boards 39
- 2.3.7 Replacing ROM 40
- Reception image data transfer 41
- G3 Facsimile 42
- Chapter 2, 3.1 Report 43
- Output Function 43
- REFERENCE 48
- 3.5 Master Password 49
- Master password: 4559769 49
- Figure 1-14 All Clear 50
- 4. PROTECTIVE FUNCTIONS 51
- 4.3 Built-in Safety Measures 52
- 4.3.1 Overcurrent protection 52
- 4.3.2 Lightning protection 52
- Chapter 2 55
- Operating 55
- Instructions 55
- 2. BASIC OPERATION 63
- 2.3 Transmission 65
- 2.4 Reception 66
- 3.1 Report Output Function 67
- Figure 2-9 Memory Clear List 68
- 3.2 User Data Flowchart 82
- 3.3 Service Switches 95
- 3.3.1 Hardware switches 95
- 3.3.2 Service data setting 97
- (1) User data mode selection 98
- 3.3.4 Service data flowchart 99
- (Menu switch settings) 100
- (Numeric parameter settings) 101
- (NCU settings) 102
- (Type setting) 103
- (UHQ function settings) 103
- (Data initialization mode 104
- (ROM management) 104
- (Printer function settings) 104
- G3 Facsimile SERVICE 105
- 3.4 Test Functions 122
- 3.4.1 Test mode overview 122
- 3.4.2 Test mode flowchart 123
- Figure 2-44 Test Mode (1/2) 123
- Figure 2-45 Test Mode (2/2) 124
- 3.4.3 D-RAM tests 125
- Figure 2-46 D-RAM Test 125
- 3.4.4 Print test 126
- 3.4.5 Modem and NCU tests 127
- 3.4.6 AGING test 131
- 3.4.7 Faculty tests 132
- Figure 2-49 Sensor Tests 133
- Figure 2-50 Toner Sensor 134
- Figure 2-51 Stamp Test 135
- Figure 2-52 Operation Panel 138
- 3.4.8 ISDN test 139
- Chapter 3 143
- Technical 143
- Reference 143
- 1. SPECIFICATIONS 145
- 1.1.2 Option overview 146
- FAX-L1000 147
- 1.2.3 Configuration 148
- 1.3.1 Basic specifications 149
- Figure 3-2 Scanning Range 154
- Figure 3-3 Printing Range 157
- 1.3.5 Functions 158
- 2. THEORY OF OPERATIONS 162
- 2.1.3 Consumables 163
- Figure 3-4 Product Overview 164
- 2.2 Mechanical Overview 165
- 2.2.1 Unit layout diagrams 165
- Figure 3-5 Paper Path 166
- 2.2.3 Drive system layout 167
- Recording paper 173
- 2.3.2 Optical section 179
- Figure 3-11 Contact Sensor 181
- 2.4 Paper Load Section 182
- Paper pickup roller 184
- (Paper feeder) 187
- 2.5 Printer Section 188
- Figure 3-15 Printer Section 188
- 2.5.3 Toner cartridge 194
- Figure 3-18 Toner Cartridge 194
- Figure 3-19 Surface Potential 195
- Figure 3-20 Primary Charging 195
- Figure 3-22 Developing 196
- Figure 3-24 Drum Cleaning 198
- High voltage terminal 199
- Figure 3-26 Transfer 200
- Figure 3-27 Separation 200
- Fixing film 201
- 2.6 Circuit Overview 204
- 2.6.2 Functions 205
- ECNT board 208
- Power supply unit 208
- 2.6.4 Functions 209
- Cam sensor 211
- Cam motor 211
- 2.6.7 Flow of image signals 217
- Figure 3-33 Transmission 218
- TWINS board 220
- 3. NEW FUNCTION 221
- Figure 3-35 Typical Protocol 223
- Figure 3-36 Late Start 230
- Figure 3-38 Mode Change 232
- Receiver 233
- Transmitter 234
- Figure 3-41 Images 235
- 3.2.3 Encoding Method 237
- 3-line model template 238
- 2-line model template 238
- Renormalized 242
- Renormalization 243
- BIE (Bi-level Image Entity) 244
- BIH (Bi-level Image Header) 244
- 0xXX 0-127 pixels 246
- 0x00 fixed 246
- Control signal 249
- Sleep mode signal 249
- Stop signal 249
- Chapter 4 251
- Maintenance 251
- 1. MAINTENANCE 253
- 1.1.2 Cleaning 255
- 1.1.3 Periodic inspections 257
- 1.2 Tools 258
- 1.2.1 General tools 258
- 1.2.2 Special tools 258
- 2. CONSUMABLES REPLACEMENT 259
- 2.3 Stamp Ink 260
- 3. CLEANING 263
- Document pick-up roller 264
- Separation roller (Upper) 264
- Separation roller (Lower) 264
- Document feed roller 1 264
- 3.10 Transfer Guide 265
- Green lever 266
- Transfer guide 266
- Transfer charging roller 267
- 3.11 Transfer Charging Roller 268
- Figure 4-12 Cleaning Location 269
- One-touch dial panels 270
- Cassette pick-up roller 271
- Cassette feed roller 271
- Cassette separation roller 271
- Entrance cover 272
- Multi-purpose tray 273
- Slide the support roller 273
- 3.14 Feed Roller 274
- Front cover 275
- Shield cover 276
- Operation panel 276
- Metal frame 276
- Solenoid connector 276
- Figure 4-29 Cleaning Location 278
- Figure 4-32 Cleaning Location 280
- Paper feed guide 282
- Figure 4-37 Cleaning Location 283
- 3.18 Fixing Film 284
- Figure 4-41 Cleaning Location 285
- Delivery Guide 286
- Figure 4-43 Cleaning Location 286
- 4. ADJUSTMENT 287
- Leading edge of paper 289
- Leading edge margin 289
- 5. TROUBLESHOOTING 290
- 5.2.1 User error message 291
- 5.2.2 Error codes 297
- Display repeated 297
- Chapter 2: 2.4.7 305
- Faculty tests 305
- SSSW SW03 306
- Chapter 2: 307
- 2.4.7 Faculty tests 307
- Chapter 2: 2.4.7 Faculty Test 316
- Chapter 2: 3.4.4 Print test 317
- Figure 4-47 Fixing Nip Width 325
- Chapter 5 331
- Troubleshooting 331
- 6. WIRING DIAGRAM 332
- CARTRIDGE 333
- LASER/SCANNER UNIT 333
- All DIMM is option 334
- 6.2 Signal Description 335
- Appendix 357
- 1. INSTALLATION 359
- Where to Set Up the Fax 360
- FAX-L1000 Chapter 5: Appendix 361
- Space Around the Fax 362
- Power Requirements 363
- FAX UNIT 365
- Removing the Shipping Tapes 368
- Assembling the Fax 372
- 373
- PULL STRAIGHT OUT 373
- PAPER LIMIT 386
- PAPER VOLUME 387
- STATUS BAR 387
- Connecting an Extension Phone 388
- Using the MP Tray 389
- PAPER SENSOR 393
- ACCEPTABLE NOT ACCEPTABLE 393
- Size in the USE MP TRAY Menu 394
- Turning on the Power 396
- Energy Saver button 397
- Figure 5-1 All Clear 398
- Moving the Fax Unit 400
- 2. SERVICE TOOLS 401
- Connector 1 Connector 2 403
- 3. OPTION 409
- Right cover 410
- Jumper plug (JP1) 411
- First DRAM board 412
- Second DRAM board 412
- SCNT board 412
- 3.1.3 Technical information 415
- Figure 5-13 DRAM Board (4MB) 415
- 3.1.4 Maintenance and service 416
- 3.2 Verification Stamp Unit 419
- 3.2.1 Service operations 419
- Figure 5-14 External View 419
- Stamp unit 420
- 3.2.2 Maintenance and service 423
- 3.3.2 Service operations 425
- Figure 5-22 External View 425
- 3.3.3 Technical information 428
- Figure 5-24 External View 428
- 15.35"(390mm) 428
- 3.3.5 Maintenance and service 433
- Envelope guide 439
- Extension tray 439
- 3.4.4 Maintenance and service 443
- 3.5 Duplex Unit DU-52 449
- 3.5.1 Service operations 449
- Figure 5-37 External View 449
- 3.5.3 Operation 451
- Figure 5-39 Duplexing Unit 453
- 3.5.4 Maintenance and service 456
- FAX-L1000 Printer Kit 464
- Shield cover 2 464
- 3.6.3 Technical information 470
- Figure 5-55 External View 470
- 9.70"(246.5mm) 470
- ▲▲ ❏❏ ❏❏ 511
- 3.6.6 ISDN Protocol Messages 521
- Calling party 525
- Called party 525
- 3.6.7 Maintenance and service 529
- 3.7.1 Safety and precautions 560
- 3.7.2 Service operations 560
- Figure 5-79 External View 560
- 3.7.3 Technical information 561
- Figure 5-80 Status LEDs 562
- Status LEDs 562
- ER LK 100 TX RX 562
- 3.7.4 Maintenance and Service 563
- 3.8 FAX-L1000 PostScript kit 567
- 3.8.1 Safety and precautions 567
- 3.8.2 Service operations 567
- Figure 5-82 External View 567
- 3.10.2 Service Opera 571
- 3.8.3 Technical Information 572
- 3.8.4 Maintenance and service 572
- 16MB 8MB 573
- 3.10.2 Service Operations: c) 574
- Cold Rest 574
- 3.9.3 Technical informations 575
- 3.9.4 Maintenance and service 576
- 3.10 FAX-L1000 Printer kit 577
- 3.10.1 Safety and precautions 577
- 3.10.2 Service operations 577
- Figure 5-84 External View 577
- item c) 579
- Figure 5-89 Options 586
- Figure 5-95 Test Print 594
- Figure 5-96 Cleaning Page 595
- Printed on paper that 610
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