C O N T E N T S
APPENDIX A PC Board Description and Operation
Page
A1.1
Unit Configuration and Block Diagram ......................................... A1-1
A2.1
OKIFAX5700/5900 Signal Flow ...................................................... A2-1
A2.2
Explanation of Signal Flowchart ................................................... A2-18
A3.1
MCNT ............................................................................................... A3-1
A3.1.1
CPU ............................................................................................................. A3-1
A3.1.1.1 Functions ............................................................................................................... A3-1
A3.1.2
IOGA5 ......................................................................................................... A3-3
A3.1.2.1 Purpose and Overview of This ASIC ...................................................................... A3-3
A3.1.3
Scanner Control .......................................................................................... A3-5
A3.1.3.1 Overview ................................................................................................................ A3-5
A3.1.4
JBIG Control ................................................................................................ A3-8
A3.1.4.1 Overview ................................................................................................................ A3-8
A3.1.4.2 Code conversion .................................................................................................... A3-8
A3.1.4.3 CPU access ........................................................................................................... A3-8
A3.1.5
Scanner Motor Control ................................................................................ A3-11
A3.1.6
CPU Peripheral Circuits .............................................................................. A3-12
A3.1.6.1 Memory .................................................................................................................. A3-12
A3.1.6.2 Peripheral elements ............................................................................................... A3-12
A3.1.6.3 Backup circuit ......................................................................................................... A3-13
A3.1.6.4 Fan control ............................................................................................................. A3-14
A3.1.7
LED Head Control ....................................................................................... A3-15
A3.1.8
Heater Control ............................................................................................. A3-17
A3.1.9
Printer Motor Control ................................................................................... A3-18
A3.1.10 Toner Low Detection ................................................................................... A3-20
A3.1.11 Centronics Parallel Interface ....................................................................... A3-22
A3.1.12 Electrophotographic Process ...................................................................... A3-23
A3.1.12.1 Process Operation Descriptions ............................................................................. A3-26
A3.2
OPE Control .................................................................................... A3-36
A3.3
MODEM C34 PC Board ................................................................... A3-37
A3.4
UNC, WN5, FN5 and DN5 Circuit Diagram .................................... A3-42
A3.5
Power Supply Board ....................................................................... A3-55
A3.6
High-voltage Power Supply Circuit ............................................... A3-57
A3.7
G4A-PCB.......................................................................................... A3-59
Summary of Contents for OKIFAX OF5900
Page 6: ...CHAPTER 1 GENERAL INFORMATION...
Page 90: ...CHAPTER 2 INSTALLATION PROCEDURE...
Page 102: ...OKIFAX 5700 5900 2 12 3 Document stacker Hang the document stacker onto hanging position...
Page 204: ...OKIFAX 5700 5900 2 114 Typical Transmission flow...
Page 205: ...OKIFAX 5700 5900 2 115 Typical Reception flow...
Page 210: ...CHAPTER 3 BRIEF TECHNICAL DESCRIPTION...
Page 218: ...CHAPTER 4 MECHANICAL DISASSEMBLY AND REASSEMBLY...
Page 223: ...OKIFAX 5700 5900 4 5 Appearance of the OKIFAX 5700 5900...
Page 248: ...CHAPTER 5 ADJUSTMENTS...
Page 252: ...CHAPTER 6 CLEANING AND MAINTENANCE...
Page 278: ...CHAPTER 7 TROUBLESHOOTING AND REPAIR FOR OKIFAX 5700 5900...
Page 326: ...Appendix A PC Board Descriptions and Operation FirstEdition February 1999 Oki Data Corporation...
Page 390: ...C34 OKIFAX 5700 5900 A3 40 IC201 Pin Assignment...
Page 405: ...Appendix B DescriptionsofPrintOperation ThirdEdition December 1998 Oki Data Corporation...
Page 427: ...Appendix C Not used at this time...
Page 430: ...OKIFAX 5700 5900 D 1 Section 1 CABINET ASSEMBLY...
Page 432: ...OKIFAX 5700 5900 D 3 Section 2 CONTROL PANEL ASSEMBLY...
Page 434: ...OKIFAX 5700 5900 D 5 Section 3 PRINTER ASSEMBLY 53 54...
Page 437: ...OKIFAX 5700 5900 D 8 Section 4 BASE ASSEMBLY...
Page 439: ...OKIFAX 5700 5900 D 10 Section 5 FRAME ASSEMBLY SCANNER L...
Page 441: ...OKIFAX 5700 5900 D 12 Section 6 FRAME ASSEMBLY SCANNER U...
Page 443: ...OKIFAX 5700 5900 D 14 Section 7 CABLES OPTION BOARDS...
Page 445: ...Appendix E Not used at this time Oki Data Corporation...
Page 446: ...Appendix F Not used at this time Oki Data Corporation...
Page 447: ...Appendix G PC Loading FirstEdition February 1999 Oki Data Corporation...
Page 465: ...Appendix H RMCS SYSTEM MANUAL For Model 30 FirstEdition Oki Data Corporation...
Page 466: ......