Oki OKIFAX 5950 User manual

OKIFAX 5750/5950 Series
Maintenance Manual
First Edition
Note: Throughout this manual there are many references to the
G4/ISDN option. This option is not available in the U.S. or
CANADA.
January, 2001
Oki Data Corporation

PREFACE
This manual is intended to be used for installing and maintaining OKIFAX 5750/5950 facsimile
transceiver.
Maintenance of the OKIFAX 5750/5950 is assumed to be conducted at the following levels:
• Assembly-level maintenance for mechanical portions
• Unit-level maintenance for electrical at portions
CAUTION: DANGER OF EXPLOSION IF BATTERYIS INCORRECTLYREPLACED.
REPLACE ONLYWITH THE SAME OR EQUIVALENT TYPE RECOMMENDED BY THE
MANUFACTURER. DISCARD USED BATTERIES ACCORDING TO THE MANUFACTURER’S
INSTRUCTIONS
and
ATTENTION: IL Y A DANGER D’EXPLOSION S’ILY A REMPLACEMENT INCORRECT DE LA
BATTERIE. REMPLACER UNIQUEMENT AVEC UNE BATTERIE DU MEME TYPE OU D’UNT
TYPE RECOMMANDE PAR LE CONSTRUCTEUR. METTRE AU REBUT LES BATTERIES
USA GEES CONFORMEMENT AUX INSTRUCTIONS DU FABRICANT.
Programming procedures of the following user’s functions are not described in this maintenance
manual.
Please refer to user’s guide.
• Using One-Touch Keys for Programming
• Speed Dial Numbers
• Group Dialling
• Programming Personal (Confidential) Mailboxes
• Memory Operation
© Copyright 2001 Oki Data Corporation
This manual is subject to alteration without prior notification.

OF5750/5950 Series January 2001 1
Contents
CHAPTER 1 GENERAL INFORMATION
1. GENERAL INFORMATION ...................................................................................1-1
1.1 General Performance............................................................................................1-1
1.2 General User’s Functions......................................................................................1-4
1.3 General Maintenance Functions ...........................................................................1-7
1.4 General Appearance .............................................................................................1-9
1.5 Basic Performance Specifications.........................................................................1-11
1.6 Reports and Lists ..................................................................................................1-22
1.6.1 Configuration Report (List of Setting) ....................................................................1-22
1.6.1.1 Difference From OKIFAX 5700/5900.....................................................................1-23
1.6.1.2 Report Image ........................................................................................................1-24
1.6.2 Function List..........................................................................................................1-27
1.6.2.1 Difference from OKIFAX 5700/5900......................................................................1-27
1.6.2.2 Report Image ........................................................................................................1-28
1.6.3 Help Report...........................................................................................................1-31
1.6.3.1 Report Image (Conditions for descriptions)...........................................................1-31
1.6.4 Telephone Directory ..............................................................................................1-32
1.6.4.1 Difference from OKIFAX 5700/5900......................................................................1-32
1.6.5 Group Directory.....................................................................................................1-47
1.6.5.1 Difference from OKIFAX 5700/5900......................................................................1-47
1.6.6 Self Diagnosis Report ...........................................................................................1-52
1.6.6.1 Difference from OKIFAX 5700/5900......................................................................1-52
1.6.6.2 Report Image ........................................................................................................1-53
1.6.7 G3 Protocol Dump ................................................................................................1-54
1.6.7.1 Difference from OKIFAX 5700/5900......................................................................1-54
1.6.8 G4 Protocol Dump ................................................................................................1-57
1.6.9 Relay Broadcast Confirmation ..............................................................................1-60
1.6.10 Internet Fax Reception Error Report (Error Mail Report).......................................1-66
1.6.11 Activity Report.......................................................................................................1-67
1.6.11.1 Difference from OKIFAX 5700/5900......................................................................1-68
1.6.12 Message Confirmation ..........................................................................................1-70
1.6.12.1 Difference from OKIFAX 5700/5900......................................................................1-70
1.6.13 Power Outage Report ...........................................................................................1-73
1.6.13.1 Difference from OKIFAX 5700/5900......................................................................1-73
1.6.14 Confidential RX Report .........................................................................................1-75
1.6.14.1 Difference from OKIFAX 5700/5900......................................................................1-75
1.6.15 Active Memory File................................................................................................1-77
1.6.15.1 Difference from OKIFAX 5700/5900......................................................................1-78
1.6.16 Broadcast Entry Report.........................................................................................1-82
1.6.16.1 Difference from OKIFAX 5700/5900......................................................................1-82
1.6.17 Broadcast Confirmation Report.............................................................................1-88
1.6.18 G3 Log Report ......................................................................................................1-88
1.6.19 NIC Configuration .................................................................................................1-89
1.6.20 Descriptions of Communication Mode Column .....................................................1-92
1.6.20.1 Mode Column in Activity Report ............................................................................1-92
1.6.20.2 Mode Column in MCF-multi Report (with/without pictures) ...................................1-92
1.6.21 Output Conditions of Various MCF Reports During Transmission.........................1-93
1.6.21.1 Difference from OKIFAX 5700/5900......................................................................1-93
1.6.21.2 Reports to be output when queuing for communication is cancelled ....................1-93
1.6.21.3 Reports to be output upon canceling communication by pressing STOP Key.......1-94
1.6.21.4 Reports to be output upon the communication error end ......................................1-94
1.6..21.5 Reports to be output when the communication is completed normally..................1-95

OF5750/5950 Series January 2001 2
CHAPTER 2 INSTALLATION PROCEDURE
A. Setup Information..................................................................................................2-1
2.1 General .................................................................................................................2-1
2.2 Site Selection ........................................................................................................2-3
2.3 Unpacking .............................................................................................................2-5
2.4 Contents Identification...........................................................................................2-7
2.5 Installation of Attachments ....................................................................................2-8
2.6 AC Cord Connection .............................................................................................2-13
2.7 Telephone and Line Connection............................................................................2-14
2.8 Pcking for Shipment ..............................................................................................2-14
B. Programming and Initial Settings ..........................................................................2-15
2.9 Initial Settings........................................................................................................2-15
2.9.1 General Procedure of Key Operation ....................................................................2-15
2.9.2 Technical Functions: Setup ...................................................................................2-21
2.9.2.1 Technical Functions Operation 1...........................................................................2-22
2.9.2.2.1 T1 (TX) Timer Value ..............................................................................................2-30
2.9.2.2.2 T1 (RX) Timer Value..............................................................................................2-31
2.9.2.2.3 T2 Timer *100ms...................................................................................................2-32
2.9.2.2.4 Error Criterion ....................................................................................................... 2-33
2.9.2.2.5 Attenuator .............................................................................................................2-33
2.9.2.2.6 T/F Tone Att...........................................................................................................2-34
2.9.2.2.7 MF Att....................................................................................................................2-34
2.9.2.2.8 Ring Dura. *10ms..................................................................................................2-35
2.9.2.2.9 CML Timing *100ms..............................................................................................2-35
2.9.2.2.10 LED Headstrobe ...................................................................................................2-36
2.9.2.2.11 ADMIN Email Addr. ...............................................................................................2-37
2.9.2.2 Technical Functions Operation 2...........................................................................2-38
2.9.2.3 Tecnical Functions (Setup)....................................................................................2-39
2.9.2.4 TEL/FAX automatic switching ...............................................................................2-50
2.9.2.5 TAD mode .............................................................................................................2-52
2.9.2.6 Outline of Parallel Pick Up ....................................................................................2-54
2.9.3 User’s Functions ...................................................................................................2-56
2.9.4 Location Program..................................................................................................2-58
2.9.4.1 Select Menu is shown as below: ...........................................................................2-58
2.9.5 Setup.....................................................................................................................2-65
2.9.5.1 Clock Adjustment ..................................................................................................2-67
2.9.5.2 ID/Password Programming: ..................................................................................2-68
2.9.5.2.1 TSI/CSI .................................................................................................................2-70
2.9.5.2.2 TSI/CSI Option......................................................................................................2-71
2.9.5.2.3 Sender ID..............................................................................................................2-72
2.9.5.2.4 ISDN Tid................................................................................................................2-73
2.9.5.2.5 ISDN Sub No. .......................................................................................................2-75
2.9.5.3 Machine Settings ..................................................................................................2-80
2.9.5.3.1 Auto Answer Mode ................................................................................................2-85
2.9.5.3.2 TX Mode Default ...................................................................................................2-86
2.9.5.4 DIAL OPTIONS .....................................................................................................2-93
2.9.5.4.1 Redial Tries ...........................................................................................................2-96
2.9.5.4.2 Redial Interval .......................................................................................................2-97
2.9.5.4.3 Dial Prefix..............................................................................................................2-98
2.9.5.5 Incoming Options ..................................................................................................2-102
2.9.5.5.1 CNG Count ...........................................................................................................2-105
2.9.5.5.2 Distinctive Ring .....................................................................................................2-106
2.9.5.6 Report Options......................................................................................................2-110
2.9.5.7 LAN Options..........................................................................................................2-112
2.9.5.7.1 POP Interval..........................................................................................................2-115
2.9.5.7.2 DOMAIN Name .....................................................................................................2-116

OF5750/5950 Series January 2001 3
2.9.5.7.3 Network Settings ...................................................................................................2-117
2.9.5.7.3.1 IP Address ............................................................................................................2-119
2.9.5.7.3.2 Subnet Mask ......................................................................................................... 2-121
2.9.5.7.3.3 Default Gateway ...................................................................................................2-122
2.9.5.7.3.4 SMTP Server Addr. ...............................................................................................2-123
2.9.5.7.3.5 SMTP Server Name ..............................................................................................2-124
2.9.5.7.3.6 POP Server Addr...................................................................................................2-125
2.9.5.7.3.7 POP Server Name ................................................................................................2-126
2.9.5.7.3.8 POP User ID .........................................................................................................2-127
2.9.5.7.3.9 POP Password......................................................................................................2-128
2.9.5.7.3.10 DNS P.SRV Addr. ..................................................................................................2-129
2.9.5.7.3.11 DNS S.SRV Addr...................................................................................................2-130
2.9.5.7.3.12 Host Name ............................................................................................................2-131
2.9.5.7.3.13 Fax Email Addr. .....................................................................................................2-132
2.9.6 User Default Setting 1 ...........................................................................................2-139
2.9.7 Default Setting of Dial Parameters........................................................................2-141
2.9.8 Technical Default Setting.......................................................................................2-142
2.9.9 Off-line Tests .........................................................................................................2-143
2.9.9.1 Self Diagnosis Flow...............................................................................................2-144
2.9.91 Self Diagnosis Report ...........................................................................................2-146
2.9.9.1.1 Difference from OKIFAX 5700/5900......................................................................2-146
2.9.10 On-line Tests .........................................................................................................2-147
2.10 Installation of optional units...................................................................................2-150
2.10.1 Optional units ........................................................................................................2-150
2.10.2 Memory Board Installation Instruction ...................................................................2-151
2.10.3 Network Card Installation Instruction.....................................................................2-152
2.10.4 G4 Board Installation Instruction ...........................................................................2-153
2.10.5 G3 Dual Line Installation Instraction......................................................................2-154
2.10.6 Second Paper Cassette Unit.................................................................................2-155
CHAPTER 3 BRIEF TECHNICAL DESCRIPTION
3.1 Fundamentals of the Electro-Photographic Process .............................................3-2
3.2 Actual Electo-photographic Process .....................................................................3-4
3.3 Boards and Units ..................................................................................................3-5
3.4 Overall Dimension and Mechanical Structure of OKIFAX 5750/5950 ...................3-6
CHAPTER 4 MECHANICAL DISASSEMBLY AND REASSEMBLY
4. General .................................................................................................................1
4.1 Precautions for Parts Replacement ......................................................................1
4.2 Tools......................................................................................................................3
4.3 How to Disassemble and Reassemble..................................................................3
4.3.1 Document Table Cover..........................................................................................6
4.3.2 Rear Cover and NCU Cover .................................................................................6
4.3.3 Main Cover............................................................................................................7
4.3.4 Operation Unit.......................................................................................................9
4.3.5 NCU Board............................................................................................................10
4.3.6 MODEM Board......................................................................................................10
4.3.7 Plate Package.......................................................................................................11
4.3.8 Scanner Unit (CIS) ................................................................................................12
4.3.9 Stacker Frame ......................................................................................................13
4.3.10 Printer Unit ............................................................................................................13
4.3.11 Fan and Fan guard ...............................................................................................14
4.3.12 Main Board ............................................................................................................15

OF5750/5950 Series January 2001 4
4.3.13 ContactAssembly and High-/Low-voltage Power Supply Boards ..........................15
4.3.14 Disassembling the Operation Unit .........................................................................16
4.3.14.1 Disassembling the Operation Unit .........................................................................18
4.3.15 Disassembling the Scanner Unit (L)......................................................................19
4.3.16 Scanner (CIS) .......................................................................................................20
4.3.17 PC1/PC2 Sensors .................................................................................................20
4.3.18 Speaker.................................................................................................................21
4.3.19 Scanner Motor ......................................................................................................22
4.3.20 Disassembling the Printer Unit..............................................................................23
4.3.21 LED Head .............................................................................................................24
4.3.22 ID/Toner Lockout Board ........................................................................................26
CHAPTER 5 ADJUSTMENTS
5.1 Setting of LED Print Head Drive Time ...................................................................5-1
5.2.1 Confirmation Items ................................................................................................5-2
5.2.2 Measurement ........................................................................................................5-3
CHAPTER 6 CLEANING AND MAINTENANCE
6.1 Replacement of Consumable................................................................................6-1
6.2 Routine Inspection ................................................................................................6-3
6.3 Printer Counter Display/Clear ...............................................................................6-5
6.4 Printer Counter Display/Clear ...............................................................................6-7
6.5 Self-diagnosis Test ................................................................................................6-8
6.6 Sensor Calibration Test .........................................................................................6-14
6.7 LEDs Test..............................................................................................................6-15
6.8 Tone Send Test .....................................................................................................6-16
6.9 High-speed Modem Send Test..............................................................................6-17
6.10 High-speed Modem Receive Test .........................................................................6-18
6.11 MF Tone Send Test ...............................................................................................6-19
6.12 Tone (TEL/FAX) ....................................................................................................6-20
6.13 ISDN Sending Test................................................................................................6-21
6.14 Tone Send Test G3................................................................................................6-22
6.15 Modem Send Test G3 ...........................................................................................6-23
6.16 MF (Tone) Test G3 ................................................................................................6-24
6.17 Protocol Dump Data Printing.................................................................................6-25
6.18 System Reset........................................................................................................6-26
6.19 Service Codes.......................................................................................................6-27
6.19.1 G3 Service Code List ............................................................................................6-28
6.19.2 G4 Service Code Lists ..........................................................................................6-31
6.19.3 Internet-Fax Service Code List..............................................................................6-34
CHAPTER 7 TROUBLESHOOTING AND REPAIR FOR OKIFAX 5750/5950
7.1 Overall Troubleshooting Flow Chart......................................................................7-2
7.2 No LCD Operation ................................................................................................7-3
7.3 Alarm LED On .......................................................................................................7-4
7.4 Printing Test Failure ..............................................................................................7-5
7.5 No Local Copy ......................................................................................................7-6
7.6 Auto Dial Failure ...................................................................................................7-7
7.7 Transmission Problem ..........................................................................................7-8
7.8 Auto Reception Failure..........................................................................................7-10
7.9 Reception Problem ................................................................................................7-11

OF5750/5950 Series January 2001 5
7.10 SensorCalibrationTest..........................................................................................7-13
7.11 LED Test................................................................................................................7-14
7.12 Tone Send Test...................................................................................................... 7-15
7.13 High-speedModemTest........................................................................................7-16
7.14 MF Send Test ........................................................................................................7-18
7.15 Tone (TEL/FAX) Send Test....................................................................................7-19
7.16 No Acoustic Line Monitor ......................................................................................7-20
7.17 Power Supply Unit ................................................................................................7-21
7.18 No Document Feeding ..........................................................................................7-22
7.19 Multiple Document Feeding ..................................................................................7-23
7.20 Document Skew....................................................................................................7-24
7.21 Document Jam......................................................................................................7-26
7.22 Printer Unit ............................................................................................................7-27
7.22.1 Precautions ...........................................................................................................7-27
7.22.2 Troubleshooting Flow Charts of Printer Unit..........................................................7-28
7.23 G3 Dual Line Troubleshooting Flow Chart ............................................................7-48
7.24 Auto Dial Failure (G3 Dual Line) ...........................................................................7-49
7.25 Transmission Problem (G3 Dual Line) ..................................................................7-50
7.26 Auto Reception Failure (G3 Dual Line) .................................................................7-52
7.27 Reception Problem (G3 Dual Line) .......................................................................7-53
7.28 High-speed Modem Test (G3 Dual Line) ...............................................................7-55
7.29 MF Send Test (G3 Dual Line)................................................................................7-57
7.30 No Acoustic Line Monitor (G3 Dual Line) ..............................................................7-58
Appendix A PC Board Decriptions and Operation
A1.1 Unit Configuration and Block Diagram ................................................................... A1-1
A2.1 OKIFAX 5750/5950 Signal Flow............................................................................A2-1
A2.2 Explanation of Signal Flowchart............................................................................A2-21
A3.1 MCNT....................................................................................................................A3-1
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
Appendix B Description of Print Operations for OKIFAX 5750/5950
B.1 MechanicalComponents .......................................................................................B-1
B.2 Description of Print Operations .............................................................................B-2
B.2.1 Process Operations...............................................................................................B-2
B.3 Errors ....................................................................................................................B-13
B.3.1 Errors List..............................................................................................................B-13
B.3.2 Major Trouble Errors .............................................................................................B-14
B.3.2.1 Fuser Error............................................................................................................B-14
B.3.2.2 Fan Error...............................................................................................................B-14
B.3.2.4 2'nd Tray Communication Error.............................................................................B-15
B.3.2.5 Cover Open...........................................................................................................B-15
B.3.2.3 Paper Feed Monitoring..........................................................................................B-15
B.3.3 Recoverable Errors ...............................................................................................B-16
B.3.3.1 Toner Low Detection .............................................................................................B-17
B.4 Other Special Cases .............................................................................................B-19
B.4.1 Manual Paper Feed ...............................................................................................B-19
B.4.2 Cleaning ................................................................................................................B-19

OF5750/5950 Series January 2001 6
Appendix C Not used at this time
Appendix D Mechanical Expanded View Drawing and Parts List (OKIFAX 5750/5950)
Section 1 Cabinet Assembly (Drawing).................................................................................D-1
Cabinet Assembly (Parts Lists) .............................................................................D-2
Section 2 Control Panel Assembly(Drawing) ........................................................................D-3
Control Panel Assembly(Parts Lists).....................................................................D-4
Section 3 Printer Assembly(Drawing)....................................................................................D-5
Printer Assembly(Parts Lists) ................................................................................D-6,7
Section 4 Base Assembly(Drawing) ......................................................................................D-8
Base Assembly(Parts Lists) ..................................................................................D-9
Section 5 Frame Assembly-Scanner(L)(Drawing) .................................................................D-10
Frame Assembly-Scanner(L)(Parts Lists) ............................................................. D-11
Section 6 Frame Assembly-Scanner(U)(Drawing) ................................................................D-12
Frame Assembly-Scanner(U)(Parts Lists) .............................................................D-13
Section 7 Cables, Option Boards(Drawing) ..........................................................................D-14
Cables, Option Boards(Parts Lists) .......................................................................D-16
Appendix E Not used at this time
Appendix F Second Paper Feeder Maintenance Manual (OKIFAX 5750/5950)
1. OUTLINE ..............................................................................................................F-1
1.1 Functions...............................................................................................................F-1
1.2 External View and Component Names ..................................................................F-1
2. MECHANISM DESCRIPTION ..............................................................................F-2
2.1 GeneralMechanism ..............................................................................................F-2
2.2 HopperMechanism ...............................................................................................F-2
3. PARTS REPLACEMENT ......................................................................................F-3
3.1 Precautions Concerning Parts Replacement ......................................................... F-3
3.2 Parts Layout ..........................................................................................................F-5
3.3 Parts Replacement Methods .................................................................................F-6
3.3.1 SteppingMotor (Hopping)......................................................................................F-7
3.3.2 TQSB2-PCB .........................................................................................................F-9
3.3.3 Hopping Roller Shaft Assy and One-way Clutch Gear...........................................F-9
4. TROUBLESHOOTING..........................................................................................F-10
4.1 PrecautionsPrior totheTroubleshooting ...............................................................F-10
4.2 PreparationsfortheTroubleshooting......................................................................F-10
4.3 Troubleshooting Method.........................................................................................F-11
4.3.1 LCD Status Message List......................................................................................F-11
5. CONNECTION DIAGRAM .................................................................................... F-14
5.1 InterconnectionDiagram........................................................................................F-14
5.2 PCB Layout ...........................................................................................................F-15
6. PARTS LIST..........................................................................................................F-16

CHAPTER 1
GENERAL INFORMATION

OF5750/5950 Series January 2001 1 - 1
1. GENERAL INFORMATION
1.1 General Performance
(1) Type of appearance
• Desktop type
(2) Applicable lines
• PSTN (Public switched telephone network
• PBX (Private branch exchange) telephone line
• ISDN (Integrated service digital network)
• FAX2NET Internet Fax (via PSTN)
• E-mail Internet Fax (via LAN)
Note: ISDN and Internet Fax are option.
(3) Compatibility
• ITU-T Group 3 facsimile transceiver
• ITU-T Group 4 facsimile transceiver (option)
(4) Document width
• Max. 216 mm (NA Letter)
• Min. 148 mm (ISO A5 size)
(5) Effective reading width
TX • 215.4 mm (NA Letter) COPY • 208.6 mm (NA Letter)
• 208.6 mm (ISO A4 size) • 208.6 mm (ISO A4 size)*1
* Printing width will be 206 mm.
(6) Scanning length
• 128 mm to 356 mm
Length setting: Long documents (1500 mm) are also available.
(7) Automatic document feeder (ADF)
• 50 sheets (NA Letter/A4-size: 20-lb/75gm Oki Data recommended paper)
• 30 sheets (NA Letter/A4-size: 16 to 28-lb/60 to 105gm)
(8) Recording paper
• 1st cassette: NA Letter/NA Legal/A4-size plain paper cut 250 sheets capacity
(20-lb/75gm)
• 2nd cassette (option): NA Letter/NA Legal/A4-size plain paper cut 500 sheets capacity
(20-lb/75gm)
• Manual paper feeder: Transparency for overhead projector, applicable.
Sheet size: NA Letter/NA Legal/A4-size
*: Oki Data recommended paper
(9) Printable width
• NA Letter: 211.3 mm (203.2 mm for assured quality)
• NA Legal: 211.3 mm (203.2 mm for assured quality)
• ISO A4: 206.0 mm (197.3 mm for assured quality)
(10) Printable length
• NA Letter: 273.4 mm (266.7 mm for assured quality)
• NA Legal: 349.6 mm (342.9 mm for assured quality)
• ISO A4: 291.0 mm (284.3 mm for assured quality)
(11) Copy stacker
• Face down stacking: Max. 200* sheets
• Face up stacking: Max. 10* sheets
*Note 1: Oki Data recommended paper
Note 2: Face down or face up stacking is changeable by the lever.