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
OKIFAX5750/5950 Block Diagram (1) ........................................................ A1-3
OKIFAX5750/5950 Block Diagram (2) ........................................................ A1-4
A2.1
OKIFAX5750/5950 Signal Flow ...................................................... A2-1
A2.2
Explanation of Signal Flowchart ................................................... A2-21
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
A3.8
G3A-PCB.......................................................................................... A3-61
Содержание OKIFAX 5950
Страница 9: ...CHAPTER 1 GENERAL INFORMATION ...
Страница 100: ...OF5750 5950 Series January 2001 1 91 NIC CONFIGURATION TYPE 2 09 22 2000 16 54 ID OKIDATA CORP E8S FAX MFP S W ...
Страница 101: ...OF5750 5950 Series January 2001 1 92 1 6 21 NIC Information ...
Страница 107: ...CHAPTER 2 INSTALLATION PROCEDURE ...
Страница 119: ...OF5750 5950 Series January 2001 2 12 Hang the document stacker onto hanging position 2 6 AC Cord Connection ...
Страница 264: ...CHAPTER 3 BRIEF TECHNICAL DESCRIPTION ...
Страница 272: ...CHAPTER 4 MECHANICAL DISASSEMBLY AND REASSEMBLY ...
Страница 277: ...OF5750 5950 Series January 2001 4 5 Appearance of the OKIFAX 5750 5950 ...
Страница 302: ...CHAPTER 5 ADJUSTMENTS ...
Страница 306: ...CHAPTER 6 CLEANING AND MAINTENANCE ...
Страница 341: ...CHAPTER 7 TROUBLESHOOTING AND REPAIR FOR OKIFAX 5750 5950 ...
Страница 400: ...Appendix A PC Board Descriptions and Operation ...
Страница 491: ...Appendix B DescriptionsofPrintOperation ...
Страница 513: ...Appendix C Not used at this time ...
Страница 514: ...Appendix D Mechanical Expanded View Drawing and Parts List OKIFAX 5750 5950 January 2001 Oki Data Corporation ...
Страница 516: ...OF5750 5950 Series January 2001 D 1 Section 1 CABINET ASSEMBLY 27 28 29 ...
Страница 518: ...OF5750 5950 Series January 2001 D 3 Section 2 CONTROL PANEL ASSEMBLY 11 ...
Страница 520: ...OF5750 5950 Series January 2001 D 5 Section 3 PRINTER ASSEMBLY 53 54 31 10 55 52 34 56 ...
Страница 523: ...OF5750 5950 Series January 2001 D 8 Section 4 BASE ASSEMBLY ...
Страница 525: ...OF5750 5950 Series January 2001 D 10 Section 5 FRAME ASSEMBLY SCANNER L 31 30 33 32 ...
Страница 527: ...OF5750 5950 Series January 2001 D 12 Section 6 FRAME ASSEMBLY SCANNER U ...
Страница 529: ...OF5750 5950 Series January 2001 D 14 Section 7 CABLES OPTION BOARDS ...
Страница 530: ...OF5750 5950 Series January 2001 D 15 28 29 Section 7 CABLES OPTION BOARDS ...
Страница 532: ...Appendix E Not used at this time ...
Страница 533: ...Appendix F Second Paper Feeder Maintenance Manual OKIFAX 5750 5950 series January 2001 Oki Data Corporation ...
Страница 550: ...OF5750 5950 Series January 2001 F 15 5 2 PCB Layout TQSB 2PCB PU FG CONTROLLER MOTOR DRIVER SEN2 MOTOR OSC SEN1 ...
Страница 551: ...OF5750 5950 Series January 2001 F 16 Figure 6 1 6 PARTS LIST SECTION1 CABINET CASSETTE ASSEMBLY P 7 2 8 1 6 5 3 4 O ...