41309401TH Rev.4
6 /
8. DIPSWITCHS SETTING TABLES FOR EN9/INU NCU BOARDS ...................... 261
APPENDIX A
PC BOARD DESCRIPTIONS AND OPERATION ........................... 271
1. Unit Configuration and Block Diagram ..................................................................................... 271
1.1
The unit configuration is as follows: ............................................................................... 274
1.2
Function of Each Unit .................................................................................................... 275
2. Explanation of Signal Flow ...................................................................................................... 278
2.1
OKIFAX4550 ................................................................................................................. 278
2.2
OKIOFFICE87 ............................................................................................................... 294
3. 46F Circuit Diagram (OKIFAX4550) ........................................................................................ 310
3.1
46F Circuit Diagram (1/13) ............................................................................................ 310
3.2
46F Circuit Diagram (2/13) ............................................................................................ 311
3.3
46F Circuit Diagram (3/13) ............................................................................................ 312
3.4
46F Circuit Diagram (4/13) ............................................................................................ 313
3.5
46F Circuit Diagram (5/13) ............................................................................................ 315
3.6
46F Circuit Diagram (6/13) ............................................................................................ 316
3.7
46F Circuit Diagram (7/13) ............................................................................................ 318
3.8
46F Circuit Diagram (8/13) ............................................................................................ 321
3.9
46F Circuit Diagram (9/13) ............................................................................................ 322
3.10 46F Circuit Diagram (10/13) .......................................................................................... 324
3.11 46F Circuit Diagram (11/13) .......................................................................................... 325
3.12 46F Circuit Diagram (12/13) .......................................................................................... 329
3.13 46F Circuit Diagram (13/13) .......................................................................................... 330
4. R46 Circuit Diagram (OKIOFFICE87) ...................................................................................... 331
4.1
R46 Circuit Diagram (1/15, 2/15, 3/15) .......................................................................... 331
4.2
R46 Circuit Diagram (4/15) ............................................................................................ 332
4.3
R46 Circuit Diagram (5/15) ............................................................................................ 333
4.4
R46 Circuit Diagram (6/15) ............................................................................................ 334
4.5
R46 Circuit Diagram (7/15) ............................................................................................ 335
4.6
R46 Circuit Diagram (8/15, 9/15) ................................................................................... 337
4.7
R46 Circuit Diagram (10/15) .......................................................................................... 340
4.8
R46 Circuit Diagram (11/15) .......................................................................................... 341
4.9
R46 Circuit Diagram (12/15) .......................................................................................... 343
4.10 R46 Circuit Diagram (13/15) .......................................................................................... 344
4.11 R46 Circuit Diagram (14/15) .......................................................................................... 348
4.12 R46 Circuit Diagram (15/15) .......................................................................................... 349
5. OPE (04W) Circuit Diagram ..................................................................................................... 350
6. Power Supply Unit ................................................................................................................... 351
6.1
MPW1446 (230V)/MPW1546 (120V) Circuit Diagram ................................................... 351
7. P2H Circuit Diagram ................................................................................................................ 353
7.1
High-voltage section ......................................................................................................... 354
7.2
Photosensors ................................................................................................................. 355
7.3
Cover open circuit .......................................................................................................... 355
8. EN9 and INU Circuit Diagram .................................................................................................. 356
8.1
EN9 circuit diagram ....................................................................................................... 358
8.2
INU circuit diagram ........................................................................................................ 361
8.3
Outline of Parallel Pick Up ............................................................................................. 364
9. G4N-PCB ................................................................................................................................. 365
APPENDIX B
DESCRIPTIONS OF PRINT OPERATION ...................................... 367
1. Electro-Photographic Processor .............................................................................................. 367
2. Electro-Photographic Process ................................................................................................. 369
2.1
Explanation of Each Process Operation ........................................................................ 372
3. Paper Jam Detection ............................................................................................................... 378
4. Toner Low Detection ................................................................................................................ 380
5. Cover Open .............................................................................................................................. 381
APPENDIX C
CIRCUIT DIAGRAMS ...................................................................... 382
APPENDIX D
MECHANICAL EXPANDED VIEW DRAWING AND PARTS LIST . 427
Summary of Contents for OKIFAX4550
Page 156: ...41309401TH Rev 4 156 Figure 4 2 Appearance of the OKIFAX4550 OKIOFFICE87...
Page 428: ...41309401TH Rev 4 428 SECTION 1 CABINET ASSEMBLY OKIFAX4550 OKIOFFICE87...
Page 431: ...41309401TH Rev 4 431 SECTION 2 UNIT PRINTER...
Page 433: ...41309401TH Rev 4 433 SECTION 3 UNIT 051 OPE PANEL...
Page 435: ...41309401TH Rev 4 435 SECTION 4 OPEPANEL OPERATION PANEL ASSEMBLY...
Page 437: ...41309401TH Rev 4 437 SECTION 5 FRAME ASSEMBLY SCANNER L...
Page 439: ...41309401TH Rev 4 439 SECTION 6 PLATE ASSEMBLY SCANNER B...
Page 441: ...41309401TH Rev 4 441 SECTION 7 PLATE ASSEMBLY SCANNER R...
Page 443: ...41309401TH Rev 4 443 SECTION 8 FRAME ASSEMBLY SCANNER U...
Page 445: ...41309401TH Rev 4 445 SECTION 9 COVER ASSEMBLY TOP...
Page 447: ...41309401TH Rev 4 447 SECTION 10 PLATE ASSEMBLY BASE...
Page 449: ...41309401TH Rev 4 449 SECTION 11 PRINTER BASE FRAME UNIT Heat assy...
Page 452: ...41309401TH Rev 4 452 SECTION 12 PRINTER HEAT ASSY...
Page 454: ...41309401TH Rev 4 454 SECTION 13 CABLES...
Page 457: ...41309401TH Rev 4 457 46F PCB Assy 1 9 41196601...
Page 466: ...41309401TH Rev 4 466 R46 PCB Assy 1 10 41033201...
Page 476: ...41309401TH Rev 4 476 04W PCB Assy 1 3 40071401...
Page 479: ...41309401TH Rev 4 479 EN9 PCB Assy 1 6 41144301...
Page 485: ...41309401TH Rev 4 485 INU PCB Assy 41144501 US 1 4 41144502 INT 1 5...
Page 493: ...41309401TH Rev 4 493 MPW1546 120V PCB Assy 1 5 SIPS1303...
Page 498: ...41309401TH Rev 4 498 MPW1446 230V PCB Assy 1 6 SIPS1302...
Page 504: ...41309401TH Rev 4 504 P2H PCB Assy 1 4 40599101...
Page 508: ...41309401TH Rev 4 508 P6L PCB Assy 1 3 40386701...
Page 511: ...41309401TH Rev 4 511 G4N PCB Assy 1 5 41033701...
Page 585: ...41309401TH Rev 4 585 Figure H 7 1 2 RTC Time Read Figure H 7 2 2 RTC Time Set...
Page 587: ...41309401TH Rev 4 587 Figure H 9 Figure H 10 1 3...
Page 588: ...41309401TH Rev 4 588 Figure H 10 2 3 Figure H 10 3 3...
Page 589: ...41309401TH Rev 4 589 Figure H 11 1 3 Figure H 11 2 3...
Page 590: ...41309401TH Rev 4 590 Figure H 12 Figure H 11 3 3...
Page 591: ...41309401TH Rev 4 591 Figure H 13 1 2 Figure H 13 2 2...
Page 592: ...41309401TH Rev 3 592 592 Figure H 14 1 2 Figure H 14 2 2...
