Okidata OKIOFFICE 44 Service Manual
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OKIOFFICE 44
Service Manual
All specifications are subject to change without notice.
59276801
Disclaimer
This document may not be reproduced without the written permission of OKIDATA Training and
Publications. Evert effort has been made to ensure the accuracy of the information contained in this
training course. OKIDATA is not responsible for errors beyond its control.
Copyright / About Information
Copyright 1997 by OKIDATA. All rights reserved.
First Release P/N 59276801 September, 1997
Written by OKIDATA Training and Publications
Contact Information
Please address any comments on this publication to:
Mailing Address OKIDATA
532 Fellowship Road
Mount Laurel, NJ 08054-3499
Web Site www.OKIDATA.com
Telephone (609) 235-2600
Facsimile (609) 222-5320
OKILINK Login Name Technical Training
Copyright Listing
OKIDATA is a registered trademark of Oki Electric Industry Company, Ltd.; marques deposee de Oki
Electric Industry Company, Ltd.; marca registrada, Oki Electric Industry Company, Ltd.
Faxable Facts is a trademark, All Rights Reserved, 1993
IBM, PC, PC-DOS, and Proprinter XL are registered trademarks of International Business Machines
Corporation.
Microsoft and MS-DOS are registered trademarks and Microsoft Basic, Windows, TrueImage, and
TrueType are trademarks of Microsoft Corporation.
OKILINK II is a trademark of Oki Electric Industry Company, Ltd.
ZIP Code is a registered trademark of the United States Postal Service
Contents
Section 1: General Information ............................................................... 1 - 1
1.1 General Performance ...........................................................................................................1 - 1
1.2 General User's Function ...................................................................................................... 1 - 4
1.3 General Maintenance Functions ..........................................................................................1 - 7
1.4 General Appearance.............................................................................................................1 - 8
1.5 Basic Performance Specifications .......................................................................................1 - 9
1.6 Reports and Lists ...............................................................................................................1 - 20
Section 2: Installation .............................................................................. 2 - 1
2.1 General Setup Information ..................................................................................................2 - 1
2.2 Site Selection .......................................................................................................................2 - 3
2.3 Unpacking............................................................................................................................2 - 4
2.3.1 Unpacking for OKIOFFICE 44 ...............................................................................2 - 4
2.4 Check of Contents ............................................................................................................... 2 - 6
2.5 Installation of Attachments..................................................................................................2 - 7
2.6 AC Cord Connection ......................................................................................................... 2 - 12
2.7 Telephone and Line Connections ......................................................................................2 - 13
2.8 Packing for Shipment ........................................................................................................2 - 13
2.9 Initial Settings....................................................................................................................2 - 14
2.9.1 General Procedure of Key Operation ....................................................................2 - 14
Key Operation Flowchart ......................................................................................2 - 15
2.9.2 Technical Functions...............................................................................................2 - 18
Service Personnel Initial Settings Table 2.9.1 (1/7) .............................................. 2 - 19
Service Personnel Initial Settings Table 2.9.1 (2/7) .............................................. 2 - 20
Service Personnel Initial Settings Table 2.9.1 (3/7) .............................................. 2 - 21
Service Personnel Initial Settings Table 2.9.1 (4/7) .............................................. 2 - 22
Service Personnel Initial Settings Table 2.9.1 (5/7) .............................................. 2 - 23
Service Personnel Initial Settings Table 2.9.1 (6/7) .............................................. 2 - 24
Service Personnel Initial Settings Table 2.9.1 (7/7) .............................................. 2 - 25
TEL/FAX Automatic Switching ............................................................................2 - 26
TEL/FAX Mode Flow Chart..................................................................................2 - 27
TAD Mode Flow Chart (Type 1) ...........................................................................2 - 28
TAD Mode Flow Chart (Type 2) ...........................................................................2 - 29
2.9.3 Technical Functions Example................................................................................2 - 30
Technical Functions 01 to 11 (Table 2.9.2, 1/5) ....................................................2 - 32
Technical Functions 12 to 16 (Table 2.9.2, 2/5) ....................................................2 - 33
Technical Functions 17 to 23 (Table 2.9.2, 3/5) ....................................................2 - 34
Technical Functions 24 to 27 (Table 2.9.2, 4/5) ....................................................2 - 35
Technical Functions 28 to 31 (Table 2.9.2, 5/5) ....................................................2 - 36
Table of Contents TOC - 1 OKIOFFICE 44
Service Manual, P/N 59276801
2.9.4 User’s Functions ....................................................................................................2 - 37
User's Functions.....................................................................................................2 - 38
Feature Specifications Table 2.9.3 (1/3) ................................................................2 - 38
Feature Specifications Table 2.9.3 (2/3) ................................................................2 - 39
Feature Specifications Table 2.9.3 (3/3) ................................................................2 - 40
One-Touch Key Program Settings (Flowchart) .....................................................2 - 41
One-Touch Key Program Settings [Table 2.9.4} (1/4) .......................................... 2 - 42
One-Touch Key Program Settings Table [2.9.4] (2/4)...........................................2 - 43
One-Touch Key Program Settings [Table 2.9.4] (3/4)...........................................2 - 44
One-Touch Key Program Settings [Table 2.9.4] (4/4)...........................................2 - 45
User Function Program Settings Table 2.9.4 (1/4) ................................................ 2 - 46
Function Program .................................................................................................. 2 - 46
User Function Program Settings Table 2.9.4 (2/4) ................................................ 2 - 47
User Function Program Settings Table 2.9.4 (3/4) ................................................ 2 - 48
User Function Program Settings Table 2.9.4 (4/4) ................................................ 2 - 49
2.9.5 User's Functions Example .....................................................................................2 - 50
Function Program .................................................................................................. 2 - 50
User's Functions Table 2.9.5 (1/2) ........................................................................2 - 51
User's Functions Table 2.9.5 (2/2) ........................................................................2 - 52
Ring Response Time..............................................................................................2 - 54
Dial Parameters (Service Bit "OFF") ................................................................... 2 - 55
2.9.6 Clock Adjustment .................................................................................................. 2 - 56
2.9.7 Dual Access Operation .......................................................................................... 2 - 57
2.9.8 System Data Programming.................................................................................... 2 - 58
2.9.9 Dial Parameters Settings........................................................................................2 - 60
Procedure ...............................................................................................................2 - 60
Dial Parameters Settings (Table 2.9.6) .................................................................. 2 - 62
2.9.10 Off-line T ests .........................................................................................................2 - 63
Purpose ................................................................................................................2 - 63
Procedure ...............................................................................................................2 - 63
Self-Diagnosis Print Test (Example) Figure 2.9.4.................................................2 - 64
2.9.11 On-line Tests.......................................................................................................... 2 - 65
Transmission..........................................................................................................2 - 65
Reception ...............................................................................................................2 - 65
Typical Transmission Flow (Fig. 2.9.5)................................................................2 - 66
Typical Reception Flow (Fig. 2.9.6)...................................................................... 2 - 67
2.9.12 Installation of Optional Units ................................................................................ 2 - 68
Items ................................................................................................................ 2 - 68
Procedure ...............................................................................................................2 - 68
Memory Board Installation....................................................................................2 - 69
CTR (PC interface) Board Installation .................................................................. 2 - 70
Optional Telephone Set Installation.......................................................................2 - 71
Table of Contents TOC - 2 OKIOFFICE 44
Service Manual, P/N 59276801
Section 3: Brief Technical Description ................................................... 3 - 1
Electrophotographic Process Flow .................................................................................................. 3 - 1
3.1 Fundamentals of the Electro-Photographic Process ............................................................ 3 - 2
3.2 Actual Electrophotographic Process....................................................................................3 - 5
3.3 Boards and Units ................................................................................................................. 3 - 6
Block Diagram (Figure 3.3.1)..............................................................................................3 - 7
3.4 Overall Dimension and Mechanical Structure.....................................................................3 - 8
Section 4: Disassembly ........................................................................... 4 - 1
4.1 General.................................................................................................................................4 - 1
4.1.1 Precautions for Parts Replacement ..........................................................................4 - 1
Service Caution .......................................................................................................4 - 2
4.1.2 Tools ........................................................................................................................ 4 - 3
4.1.3 How to Disassemble and Reassemble ..................................................................... 4 - 3
Disassembly Procedure Flow Figure 4.1 (1/2) ........................................................ 4 - 4
Disassembly Procedure Flow Figure 4.1 (2/2) ........................................................ 4 - 5
Whole Unit Picture .................................................................................................. 4 - 6
4.1.3.1 LED Print Head ........................................................................................ 4 - 7
4.1.3.2 Image Drum and Covers (Rear, NCU, Main) and NCU Board................4 - 8
4.1.3.3 Unit-048 OPE-Panel ...............................................................................4 - 10
4.1.3.4 Separation Rubber, Sensor Frame Roller Assembly (U)........................ 4 - 11
4.1.3.5 Roller Assembly-ADF, CIS, Lever-PC1 and PC2 ..................................4 - 12
4.1.3.6 Board-R44, OKIOFFICE 44 Power Supply Unit................................... 4 - 14
4.1.3.7 Option (Board-Memory: MEM, Board-CTR; PC Interface)..................4 - 16
4.1.3.8 Printer Unit Section ................................................................................ 4 - 17
4.1.3.9 Transfer Roller........................................................................................4 - 18
4.1.3.10 High-Voltage Power Supply Unit (TLHV/OLHV) ................................ 4 - 19
4.1.3.11 Holder Assembly .................................................................................... 4 - 20
4.1.3.12 Plate-Side M and Gear-Idle .................................................................... 4 - 21
4.1.3.13 Registration Roller..................................................................................4 - 22
4.1.3.14 Drive Shaft E (Eject) and Eject Roller ...................................................4 - 23
4.1.3.15 Heat Assembly ........................................................................................4 - 24
4.1.3.16 Pressure Roller B (Back Up Roller) ....................................................... 4 - 25
4.1.3.17 Hopping Shaft Assembly ........................................................................4 - 26
4.1.3.18 Paper Sensor E, Paper Sensor Exit and Toner Sensor Assembly ........... 4 - 27
4.1.3.19 Printer Unit ............................................................................................. 4 - 28
Section 5: Adjustments ........................................................................... 5 - 1
5.1 Setting of LED Print Head Drive Time ...............................................................................5 - 1
Settings of Technical Function No. 27 (Table 5.1.1) ...........................................................5 - 1
5.2 Confirmation Items.............................................................................................................. 5 - 2
Service Caution ...................................................................................................................5 - 3
5.3 Measurement ....................................................................................................................... 5 - 4
Service Caution ...................................................................................................................5 - 5
Table of Contents TOC - 3 OKIOFFICE 44
Service Manual, P/N 59276801
Section 6: Cleaning and Maintenance.................................................... 6 - 1
6.1 Consumables Replacement.................................................................................................. 6 - 1
User Replaceable Items Life...............................................................................................6 - 1
Service Parts Life.................................................................................................................6 - 1
Consumables Diagram (Figure 6.1.1)..................................................................................6 - 1
Others .................................................................................................................................6 - 3
Reliability Table (6.1.1.).......................................................................................... 6 - 3
6.2 Preventative Maintenance....................................................................................................6 - 4
Preventative Maintenance (Table 6.2.1) ..............................................................................6 - 4
Preventative Maintenance Diagram (Figure 6.2.1) ................................................. 6 - 5
6.3 Printer Counter Display/Clear (User) ..................................................................................6 - 6
6.4 Printer Counter Display/Clear (Service)..............................................................................6 - 7
6.5 Self-Diagnosis Test.............................................................................................................. 6 - 9
Self-Diagnosis Test Sample (Figure 6.5.1.)...........................................................6 - 10
Explanation of Self-Diagnosis Test Items ............................................................. 6 - 11
6.6 Sensor Calibration Test......................................................................................................6 - 12
6.7 LED Test............................................................................................................................ 6 - 14
6.8 Tone Send Test...................................................................................................................6 - 15
6.9 High-speed Modem Send Test...........................................................................................6 - 16
High-speed Modem Send and Receive Test Diagram (Figure 6.9.1) ....................6 - 17
6.10 High-speed Modem Receive Test...................................................................................... 6 - 18
6.11 MF Send Test..................................................................................................................... 6 - 19
6.12 Tone (TEL/FAX) ............................................................................................................... 6 - 20
6.13 Protocol Data Dump Printing ............................................................................................ 6 - 21
Sample Protocol Data Dump (Figure 6.13.1) ....................................................................6 - 22
Data Analysis (Figure 6.13.2)............................................................................................ 6 - 23
Facsimile Control Field Conversion Table ........................................................................6 - 24
6.14 System Reset .....................................................................................................................6 - 25
6.15 Service Code...................................................................................................................... 6 - 27
Service Code List [Table 6.15.1] (1/2) .............................................................................6 - 28
Service Code List [Table 6.15.1] (2/2) .............................................................................6 - 29
Section 7: Troubleshooting...................................................................... 7 - 1
7.1 Overview ............................................................................................................................. 7 - 1
Service Caution .......................................................................................................7 - 2
7.1.1 Overall Troubleshooting Flow Chart.......................................................................7 - 3
7.1.2 No LCD Operation ..................................................................................................7 - 4
7.1.3 ALARM LED On ....................................................................................................7 - 5
7.1.4 Printing Test Failure ................................................................................................ 7 - 6
7.1.5 No Local Copy ........................................................................................................ 7 - 7
7.1.6 Auto Dial Failure .....................................................................................................7 - 9
7.1.7 Transmission Problem ...........................................................................................7 - 10
7.1.8 Auto Reception Failure..........................................................................................7 - 13
7.1.9 Reception Problem ................................................................................................ 7 - 14
7.1.10 Sensor Calibration Test..........................................................................................7 - 16
7.1.11 LED Test................................................................................................................ 7 - 17
Table of Contents TOC - 4 OKIOFFICE 44
Service Manual, P/N 59276801
7.1.12 Tone Send Test.......................................................................................................7 - 19
7.1.13 High-speed Modem Test........................................................................................7 - 20
7.1.14 MF Send Test......................................................................................................... 7 - 22
7.1.15 Tone (TEL/FAX) Send Test................................................................................... 7 - 23
7.1.16 No Acoustic Line Monitor.....................................................................................7 - 24
7.1.18 No Document Feeding........................................................................................... 7 - 25
7.1.19 Multiple Document Feeding.................................................................................. 7 - 27
7.1.20 Document Skew.....................................................................................................7 - 28
7.1.21 Document Jam ....................................................................................................... 7 - 30
7.1.22 Printer Unit ............................................................................................................ 7 - 31
7.1.22.1 Precautions .............................................................................................7 - 31
7.1.22.2 Troubleshooting Flow Charts of Printer Unit.........................................7 - 32
Overall Troubleshooting Flowchart........................................................7 - 32
1: Top Cover is Open............................................................................. 7 - 33
2: Replace Image Drum Message.......................................................... 7 - 34
3: Engine Controller Error..................................................................... 7 - 35
4: Fuser Unit Thermal Error .................................................................. 7 - 36
5: Paper Jams .........................................................................................7 - 37
6: No Paper Tray or No Paper ............................................................... 7 - 38
Action Items (Printer Unit-LCD Message) Table 7.1.22.2.....................7 - 39
Sample Image Problems (Figure 7.1.22.1) .............................................7 - 40
7.1.22.3 Image Problems Table ...........................................................................7 - 40
7: Light or Blurred Output..................................................................... 7 - 41
8: Smeared Background on Output ....................................................... 7 - 42
9: Blank Output ..................................................................................... 7 - 43
10: Vertical Black Stripes on Output .....................................................7 - 44
11: Evenly Spaced Marks on Output..................................................... 7 - 45
12: Missing Print on Output ..................................................................7 - 46
13: Vertical White Stripes on Output..................................................... 7 - 47
14: Poor Fusing......................................................................................7 - 48
Section 8: Dipswitch Settings ................................................................. 8 - 1
8.1 General Information ............................................................................................................ 8 - 1
Table of Contents TOC - 5 OKIOFFICE 44
Service Manual, P/N 59276801
Appendix A: Board Descriptions ........................................................... A - 1
PREFACE ....................................................................................................................................... A - 1
Service Caution .................................................................................................................. A - 1
A1.1 Unit Configuration and Block Diagram ............................................................................. A - 3
OKI OFFICE44 Block Diagram Figure (A1.2.1)............................................................... A - 4
Block Diagram Abbreviations ............................................................................................ A - 5
A1.2 Function of Each Unit ........................................................................................................ A - 6
Main Control (R44) Board ................................................................................................ A - 6
Operation Panel Unit: O4W Board.................................................................................... A - 6
NCU Board (UNC5)........................................................................................................... A - 7
Power Supply Unit ............................................................................................................. A - 7
Memory Board (Option)..................................................................................................... A - 7
CTR Board (PC Interface).................................................................................................. A - 7
HOOK Board (Option) ....................................................................................................... A - 7
TELU Board (Option) ........................................................................................................ A - 7
A2.1 Signal Flow Explanation .................................................................................................... A - 8
Copy Mode ......................................................................................................................... A - 8
Copy Picture Signal (Figure A2.1.1) .................................................................................. A - 9
G3 Send Mode .................................................................................................................. A - 10
G3 Send Picture Signal (Figure A2.1.2) ........................................................................... A - 11
G3 Receive Mode ............................................................................................................. A - 12
G3 Receive Picture Signal (Figure A2.1.3) ...................................................................... A - 13
300 bps Send Mode .......................................................................................................... A - 14
300 bps Send Signal (Figure A2.1.4 )............................................................................... A - 15
300 bps Receive Mode ..................................................................................................... A - 16
300 bps Receive Signal (Figure A2.1.5)........................................................................... A - 17
Report Printing ................................................................................................................. A - 18
Report Print Signal (Figure A2.1.6) ................................................................................. A - 19
Memory Transmission ...................................................................................................... A - 20
Memory Reception .......................................................................................................... A - 20
A3.3 OPE (04W) Circuit Diagram ............................................................................................ A - 42
A3.5 Power Supply Unit for OKIOFFICE 44 ........................................................................... A - 44
A3.5.1 048 POW (120V/230V) Circuit Diagram............................................................. A - 44
Block Diagram of 048 POW (Figure A3.5.1)................................................................... A - 46
Service Caution .................................................................................................... A - 47
A3.5.2 OLHV/TLHV Circuit Diagram (2/2) ................................................................... A - 47
A3.7 UNC5 (NCU) Circuit Diagram......................................................................................... A - 51
Block Diagram of UNC (Figure A3.7.1) .......................................................................... A - 53
A3.8 TELU Circuit Diagram (Option) ...................................................................................... A - 54
Block Diagram of TEL-U (Option) Fig. A3.8.1 ............................................................... A - 55
A3.10 MEMO (Memory) Circuit Diagram (Option) .................................................................. A - 56
Related Signals of Memory Board (Option) (Figure A3.10.1)......................................... A - 57
Table of Contents TOC - 6 OKIOFFICE 44
Service Manual, P/N 59276801
Appendix B: Print Operation Description ............................................. B - 1
B1.1 Electrophotographic Processor ........................................................................................... B - 1
Layout Drawing of Electrophotographic Processor (Figure B1.1)..................................... B - 1
Paper Feeding Diagram (Figure B1.2) ............................................................................... B - 3
B1.2 Electrophotographic Process .............................................................................................. B - 4
Electrophotographic Process Diagram (Figure B1.3)......................................................... B - 5
B1.2.1 Operations Process Explanations............................................................................ B - 6
Hopping ................................................................................................................. B - 6
Printing and Warm-up............................................................................................. B - 7
Exposure ................................................................................................................. B - 8
Charging ................................................................................................................. B - 8
Development........................................................................................................... B - 9
Transfer ............................................................................................................... B - 10
Fusing ............................................................................................................... B - 11
Cleaning ............................................................................................................... B - 11
Paper Feed Check List...................................................................................................... B - 12
B1.3 Paper Jam Detection ......................................................................................................... B - 12
Timing Chart for Paper Feed (Tray Feed) ........................................................................ B - 13
B1.4 Toner Low Detection ........................................................................................................ B - 14
B1.5 Cover Open....................................................................................................................... B - 16
Appendix C: Circuit Diagrams................................................................ C - 1
C.1 General Information ........................................................................................................... C - 1
Appendix D: Illustrated Parts List.......................................................... D - 1
Section 1: Cabinet Assembly 1/2.................................................................................................. D - 2
Section 1: Cabinet Assembly 2/2.................................................................................................. D - 4
Section 2: Printer Unit ................................................................................................................... D - 6
Section 3: Operator Panel .............................................................................................................. D - 8
Section 4: Operator Panel Assembly ........................................................................................... D - 10
Section 5: Frame Assembly Scanner (L)..................................................................................... D - 12
Section 6: Plate Assembly-Scanner (B)....................................................................................... D - 14
Section 7: Plate Assembly-Scanner (R)....................................................................................... D - 16
Section 8: Frame Assembly-Scanner (U) .................................................................................... D - 18
Section 9: Cover Assembly-Top .................................................................................................. D - 20
Section 10: Plate Assembly-Base ................................................................................................ D - 22
Section 11: Printer Base Frame Unit (1 of 2) .............................................................................. D - 24
Section 11: Printer Base Frame Unit (2 of 2) .............................................................................. D - 26
Section 12: Cables ....................................................................................................................... D - 28
Section 13: Miscellaneous Items ................................................................................................. D - 30
Whole Unit ....................................................................................................................... D - 30
Consumables..................................................................................................................... D - 30
Options ............................................................................................................................. D - 30
Packaging ......................................................................................................................... D - 30
User’s Manuals ................................................................................................................. D - 31
Service (Technical) Manuals ............................................................................................ D - 31
Table of Contents TOC - 7 OKIOFFICE 44
Service Manual, P/N 59276801
Appendix E: Board Layout ......................................................................E - 1
E.1 TLHV PCB ......................................................................................................................... E - 1
Service Caution .................................................................................................................. E - 1
E.2 MEM PCB .......................................................................................................................... E - 2
E.3 TEL-U PCB ........................................................................................................................ E - 3
E.4 Hook PCB ........................................................................................................................... E - 4
Appendix F: Second Paper Feeder.........................................................F - 1
F.1 General Information ............................................................................................................F - 1
Appendix G: RMCS System.................................................................... G - 1
Introduction .................................................................................................................................... G - 1
1. Notes to Users..................................................................................................................... G - 2
1.1 Identifying the Packaged Contents ......................................................................... G - 2
1.2 Required Devices.................................................................................................... G - 2
1.3 Connectable Peripheral Equipment ........................................................................ G - 2
2. Setup ................................................................................................................................... G - 3
2.1 Mounting ................................................................................................................ G - 3
2.1.1 Mounting Procedures............................................................................... G - 3
2.2 Installation .............................................................................................................. G - 4
2.2.1 Registering the RMCS Basic System ...................................................... G - 5
2.2.2 Registering the Facsimile Model No. ...................................................... G - 8
2.2.3 Deleting the Facsimile Model No............................................................ G - 9
2.2.4 Updating the Password .......................................................................... G - 10
2.2.5 Updating the Dip Switches .................................................................... G - 11
2.2.6 Deleting the RMCS Basic System......................................................... G - 12
3. RMCS Basic Operation .................................................................................................... G - 13
3.1 Activating and Terminating the system ................................................................ G - 13
3.1.1 To Activate.............................................................................................G - 13
3.1.2 Entering the ID and Password ............................................................... G - 13
3.2 TEL Directory.......................................................................................................G - 14
3.2.1 To Terminate ..........................................................................................G - 14
3.2.2 Selecting Destination Drive................................................................... G - 14
3.3 Main Menu ........................................................................................................... G - 15
3.4 Environment Setting ............................................................................................. G - 15
4. Message Modifying Tool.................................................................................................. G - 16
4.1 Activating the Program......................................................................................... G - 16
4.2 Modifying Message .............................................................................................. G - 16
4.2.1 File Selection ......................................................................................... G - 17
4.3 Saving Message .................................................................................................... G - 17
4.3.1 Confirmation.......................................................................................... G - 18
4.4 Loading Message.................................................................................................. G - 18
4.4.1 Confirmation.......................................................................................... G - 19
4.5 Other Message File............................................................................................... G - 19
Table of Contents TOC - 8 OKIOFFICE 44
Service Manual, P/N 59276801
Appendix H: Product Service Bulletins................................................. H - 1
H.1 General Information ........................................................................................................... H - 1
OKIDATA's Web Site ......................................................................................................... H - 1
Faxable Facts ...................................................................................................................... H - 1
OKILINK II........................................................................................................................ H - 1
Service Caution .............................................................................................................................. H - 3
Appendix I: Recommended Spare Parts List (RSPL)............................. I - 1
I.1 General Information .............................................................................................................I - 1
OKIDATA's Web Site ...........................................................................................................I - 1
Faxable Facts ........................................................................................................................I - 1
OKILINK II..........................................................................................................................I - 1
Table of Contents TOC - 9 OKIOFFICE 44
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Table of Contents TOC - 10 OKIOFFICE 44
Service Manual, P/N 59276801
Section 1: General Information
1.1 General Performance
(1) Type of appearance
• Desktop type
(2) Applicable lines
• Public switched telephone network (PSTN)
• Private branch exchange (PBX)
(3) Compatibility
• ITU-T Group 3 facsimile transceiver
(4) Document width
• Max. 216 mm (8.5 inches [North American Letter])
• Min. 148 mm (5.83 inches [ISO A5 size])
(5) Effective reading width
• Max. 215 mm (8.46 inches)
(6) Scanning length
• 128 mm to 356 mm (5.06 inches to 14 inches)
(Length setting: Infinite is also available.)
(7) Automatic document feeder (ADF)
• 20 sheets for OKIOFFICE44 North American Letter/A4-size: 20-1b bond
• 15 sheets (North American Letter/A4-size: 13 to 28-1b bond)
(8) Recording paper or sheet
• First tray: North American Letter/Legal/A4-size plain paper cut
OKIOFFICE 44 100 sheets capacity (20-1b bond*)
• Manual loading feeder: Transparency for overhead projector, applicable.
OKIOFFICE 44 Sheet size: Letter/Legal/A4-size
* Recommended paper
(9) Printable width
For OKIOFFICE44
• North American: 203.2 mm (8 inches) / 203.2 mm (8 inches) for assured quality
• North American Legal: 203.2 mm (8 inches) / 203.2 mm (8 inches) for assured quality
• ISO A4: 203.2 mm (8 inches) / 197.3 mm (7.77 inches) for assured quality
(10) Printable length
• NA Letter: 273.4 mm (10.76 inches) / 266.7 mm (10.49 inches) for assured quality
• NA Legal: 349.6 mm (13.76 inches) / 342.9 mm (13.49 inches) for assured quality
• ISO A4: 291 mm (11.46 inches) / 284.3 mm (11.19 inches) for assured quality
General Information 1 - 1 OKIOFFICE 44
Service Manual, P/N 59276801
(11) Copy stacker
• Maximum 30 sheets (20 lb. bond *)
*: Recommended paper
(12) Scanning resolution
a) Horizontal
• 8 pels/mm
b) Vertical
Transmission mode: STD 3.85 line/mm
COPY mode: FINE 7.7 line/mm
(13) Scanning method
• 1728 bits contact image sensor
(14) Recording resolution
a) Horizontal:
300 dots/inch
b) Vertical:
Variable: Automatically adjusted to the paper length.
FINE 7.7 line/mm
EX. FINE 15.4 line/mm
EX. FINE) 15.4 line/mm
STD mode (3.85 to 5.06 line/mm)
FINE mode (7.7 to 10.13 line/mm)
Fixed: STD mode: 3.85 line/mm
FINE mode: 7.7 line/mm
EX-FINE mode : 15.4 line/mm
: 300 dot/inch
(15) Recording method
• 211.3 mm (2496 bit) or 216.7 mm (2560 bit)
(16) Minimum scan line time for reception
• When receiving from OKIFAX or ECM: 0 ms
• When receiving from non- OKIFAX and non ECM: 10 ms at 3.85 line/mm
5 ms at 7.7 line/mm
(17) Print speed
• Max. 4 sheets per minute
(18) Pre-heating time
• Approx. 30 sec. (Standby to print)
General Information 1 - 2 OKIOFFICE 44
Service Manual, P/N 59276801
(19) Coding scheme
• Modified Huffman (MH)
• Modified READ (MR)
• Modified Modified READ (MMR)
(20) Modem (Rev. 2)
• ITU-T Rec. V.29: 9600/7200 bps
• ITU-T Rec. V.27 ter: 4800/2400 bps
• ITU-T Rec. V.21 channel 2: 300 bps
• ITU-T Rec. V.17: 14400/12000 bps
• ITU-T Rec. V.33: 14400/12000 bps
(21) Transmission speed
• 6 sec. per sheet of ITU-T No. 1 sample document
Note: This is Phase C time at 3.85 line/mm and 28800 bps for 3 sec. and 14400 bps for 6 sec. in
MMR code transmission.
(22) Protocol
• ITU-T Rec. T.30
• OKI special protocols: High-speed protocol
(23) Error correction mode (ECM)
(24) Communication mode
• Half duplex
(25) Memory capacity
• Basic model: 256k byte
• Optional memory: 1M byte memory board can be added.
(26) Liquid crystal display (LCD)
• Two rows of 20 characters for operation guidance, check and various kinds of information
(27) Power source
• Nominal input voltage 120 VAC
(28) MFP (Multi- Function Peripheral) function
• The optional board (CTR board) provides the MFP functions
PC Printer Function
PC Scanner Function
PC FaxModem Function
Location Programing Function
General Information 1 - 3 OKIOFFICE 44
Service Manual, P/N 59276801
1.2 General User's Function
(1) Transmit mode
• Automatic transmit mode
• Manual transmit mode
(2) Receive mode
• Automatic receive mode
• Manual receive mode
• TEL/FAX automatic switchover mode
• TAD mode
• PC Mode
(3) Dual Access
Not available for the OKIOFFICE 44
(4) Voice request
(5) Automatic redial
(6) Last number redial (Manual redial)
(7) Local copy including multiple copies
• Maximum 50 copies of document
(8) Sender identification (Sender ID)
(9) Personal identification (Personal ID)
(10) Polling transmission
(11) Polling reception
(12) Acoustic line monitor
(13) Telephone handset (option)
(14) Automatic alternate selecting call (FAX No. + FAX No. can be registered in one-touch keys).
(15) Delayed transmission (Maximum length of delay 3 days)
• Delayed broadcast
• Delayed transmission
1 specified time
(16) Relay broadcast initiate
(17) Confidential message transmission (Hopper 1 station)
(18) Confidential message reception
Not Available for the OKIOFFICE 44
(19) PHOTO mode
• 16 scale gradations (Dither Method)
General Information 1 - 4 OKIOFFICE 44
Service Manual, P/N 59276801
(20) G3 sequential broadcast (Memory)
• Broadcast mode
56 stations at maximum
• Delayed broadcast mode
(21) No paper/no toner reception
(22) Memory-only reception
Not available for the OKIOFFICE 44
(23) Distinguishing Text from picture
(24) Page re-transmission (Only in case of memory TX mode)
Retransmits in page units
(25) Reduction printing (Reduction rate is from 100% to 75%.) (Legal to Letter)
(26) Smoothing printing (In case of 3.85R/mm → 7.7R/mm)
(27) Programmed key operation (“F” key + “OT” key)
(28) Auto dialing
• One-touch dialing 10 locations, maximum of 32 digits each location
• Two-digit automatic dialing 45 locations, maximum of 32 digits each location
• Keypad dialing
• Chain dialing
• Mixed dialing
• Group dialing 5 dialing groups, maximum of 55 locations each group
(29) Realtime dialing
(In case of optional handset is installed or Hook key)
(30) Automatic pause signal insertion
(31) Manual feeder local copy
(32) Telephone directory (Alpha search) dialing
(33) TEL/FAX automatic switching
(34) Time and date printing
(35) Closed users group (Direct mail rejection)
(36) Transmission contrast and resolution control
(37) Key touch tone
(38) Printer counter display (For drum, toner, total print)
(39) Total page counter (Scan)
(40) Quick scanning
Not available for the OKIOFFICE 44
General Information 1 - 5 OKIOFFICE 44
Service Manual, P/N 59276801
(41) Date and clock adjustment
(42) PC interface
• Standard
(43) Language selection
• 2 languages (LCD and Reports)
English / Spanish
English / French
(42) Fax forwarding
Not available for the OKIOFFICE 44
(44) Reports
• Activity report
• Protocol report (Service man setting)
• Message confirmation report (Single address or multiple addresses)
• Broad cast entry report (Broadcast)
• Transmission error report
• Confidential reception report
• Configuration report
• Telephone directory
• Power outage report
General Information 1 - 6 OKIOFFICE 44
Service Manual, P/N 59276801
1.3 General Maintenance Functions
(1) Self-diagnosis
• CPU ROM/RAM check
• FLASH (/MASK) memory check (Program, Language, Default)
• RAM check
• RAM check (MEMORY board: option)
• PC-IF board (parallel) check
• Print test
(2) Sensor calibration (Adjustment of scanning level)
(3) LED test
(4) Tone send test
(5) Multi-frequency (MF) send test
(6) High-speed modem send test
(7) High-speed modem receive test
(8) Tone (TEL/FAX) test
(9) Remote diagnosis
(10) System reset
(11) Service default report (Machine setting for service engineer)
General Information 1 - 7 OKIOFFICE 44
Service Manual, P/N 59276801
p
1.4 General Appearance
Figure 1.4.1 shows the general appearance of the OKIOFFICE 44
Case-OPE (T)
Tray-Paper
Tray-Document
Cover-Top
Cover-Main
Cover Manual Document
Stacker-Document (O
Figure 1.4.1 General Appearance of OKIOFFICE44
Cover-Front
tional)
(FX048 CP4.1 Fig. 01)
General Information 1 - 8 OKIOFFICE 44
Service Manual, P/N 59276801
1.5 Basic Performance Specifications
Table 1.5.1 shows basic performance specifications.
Note: TF: Technical function setting
FP: Function program setting
OT: One-touch key pressed
F: SELECT FUNCTION key pressed
Table 1.5.1 (1/11) Basic Performance Specifications
No. Item Specifications
1 Applicable line
2 Line interface
1) Impedance
2) Sending power level
3) Receiving power level
3 Type of document to be transmitted
1) Width
2) Length
1) Public switched telephone network (PSTN)
2) Private branch exchange (PBX) (OT9+2)
600 ohms balanced
0 dBm to –15 dBm range
(Adjustable in 1 dB steps. TF + 22)
0 dBm to –40 dBm range
Max. 216 mm [8.5 inches] (Letter)
Min. 148 mm [5.83 inches] (ISO A5 size)
Note: Effective reading width is Letter (215 mm/8.46 inches).
Min. 128 mm (5.04 inches)
Max. 356 mm (14 inches)
Long document detection: 356 mm (14 inches) or 60 minutes
* TF + 11 (To enable or disable the long document scanning)
An operator can turn the long document scanning feature on or off
for each call in the operating sequence.
3) Thickness
4) Shape
5) Opacity
General Information 1 - 9 OKIOFFICE 44
Based on common bond paper,
a) Multiple Page Feeding
0.08 to 0.13 mm (0.003 to 0.005 inches)
b) Single Page Feeding
0.06 to 0.15 mm (.002 to .006 inches)
Rectangular
Documents allowing less than 40% of the scanner source light to
pass through them.
Service Manual, P/N 59276801
Table 1.5.1 (2/11) Basic Performance Specifications
No. Item Specifications
4 Effective reading width
Document Width
ISO A4
210 mm
8.27 inches
Letter
216 mm
8.5 inches
Legal
216 mm
8.5 inches
Note Local copy: Printable reading width in local copy mode
5 Automatic document feeder (ADF)
Communication
Mode/Paper width
G3/A4
G3/A4
G3/A4
7.87 inches
Effective reading
width
TX: 208 mm
8.19 inches
Local Copy: 200 mm
7.87 inches
TX: 215 mm
8.46 inches
Local Copy: 200 mm
7.87 inches
TX: 215 mm
8.46 inches
Local Copy: 200 mm
Up to 297 mm (11.69 inches) in length.
Maximum of. 20 documents, Letter or A4 (20-1b)
Maximum of 15 documents: Letter or A4 (13-28lb bond paper)
Documents shall be placed facedown on ADF stacker.
The first sheet will be fed first in the feeder and will exit
facedown in the document stacker.
Copy size
A4
Letter
Legal
6 Document skew
7 Document jam detection
8 Document jam removal
General Information 1 - 10 OKIOFFICE 44
Max. 2.6 mm (.102 inches) skew over a document of A4 length.
For a document longer than A4 length, occurrence of skew
exceeding 2.6 mm over any A4 length is 0.5% or less.
1) Transmission will stop and line disconnection will occur
when the end of a document is not detected within 356 mm
(14 inches) after scanning begins (except for the long document scanning. Technical Function 11)
2) A jam will also be declared if the document does not reach
the scanning position within 10 seconds after the start of a
document feed.
Note: When a jam is detected during message transmission
from the feeder, the machine will stop scanning and
disconnect the line, but its receiving capability will
remain valid.
Manual release
Service Manual, P/N 59276801
Table 1.5.1 (3/11) Basic Performance Specifications
No. Item Specifications
9 Recording paper or sheet
NOTE:
For best results, use Okidata recommended papers
Xerox 4200 (20 lb/base weight paper)
Paper approved for xerographic (copier/laser)
printing process
Automatic Feed
1) Type: Plain paper cut (Bond paper)
2) Size: A4: 210 x 297 millimeters
8.27 x 11.69 inches
Letter: 215.9 x 279.4 millimeters
8.5 x 11 inches
Legal: 215.9 x 355.6 millimeters
8.5 x 14 inches
3) Weight: 16 lbs to 24 lbs/base weight
Base weight is defined as the weight of 500 sheets
of 431.8 mm (17 inch) by 558.8 mm (22 inch).
4) Thickness:0.08 mm to 0.12 mm
.0031 inches to .0047 inches
5) Condition: New paper
Manual Feed
Note: One single sheet only should be loaded on the manual
loading feeder for any one occasion.
10 Recording paper cassette
1) Type: Plain paper, transparency for overhead projector,
colored paper, printed paper
Must meet specifications for xerographic printing
process
2) Size: A4: 210 x 297 millimeters
8.27 x 11.69 inches
Letter: 215.9 x 279.4 millimeters
8.5 x 11 inches
Legal: 215.9 x 355.6 millimeters
8.5 x 14 inches
3) Weight: 16 lbs to 24 lbs/base weight
Base weight is defined as the weight of 500 sheets
of 431.8 mm (17 inch) by 558.8 mm (22 inch).
4) Thickness:0.08 mm to 0.12 mm
.0031 inches to .0047 inches
100 sheets/tray (20 lb.)
General Information 1 - 11 OKIOFFICE 44
Service Manual, P/N 59276801
Table 1.5.1 (4/11) Basic Performance Specifications
Printing area
EL
PL
B
T
L
R
PW
EW
Recording
paper
feed
direction
(F050-C1-001)
No. Item Specifications
11 Effective recording area
PL = Page Length
PW = Page Width
EL = Effective Length
EW = Effective Width
T = Top Margin
B = Bottom Margin
L = Left Margin
R = Right Margin
U
¦
Note: These tables do not
include vertical and horizontal addressing deviations
(+ or –2 mm) of recording
paper.
1) Printable area
NA LETTER SIZE ISO A4 SIZE 14 inch LEGAL SIZE
inch mm inch mm inch mm
PL 11 279.4 11.7 297 14 355.6
PW 8.5 216 8.27 210 8.5 216
EL 10.76 273.4 11.46 291 13.76 349.6
EW 8.0 203.2 8.0 203.2 8.0 203.2
T 0.12 3 0.12 3 0.12 3
B 0.12 3 0.12 3 0.12 3
L 0.25 6.35 0.13 3.4 0.25 6.35
R 0.25 6.35 0.13 3.4 0.25 6.35
13 inch LEGAL SIZE
inch
13
8.5
12.76
8.0
0.12
0.12
0.25
0.25
mm
330.2
216
324.2
203.2
3
3
6.35
6.35
2) Guaranteed printing area
PL 11 279.4 11.7 297 14 355.6
PW 8.5 216 8.27 210 8.5 216
EL 10.5 266.7 11.2 284.3 13.5 342.9
EW 8.0 203.2 7.77 197.3 8.0 203.2
T 0.25 6.35 0.25 6.35 0.25 6.35
B 0.25 6.35 0.25 6.35 0.25 6.35
L 0.25 6.35 0.25 6.35 0.25 6.35
R 0.25 6.35 0.25 6.35 0.25 6.35
NA LETTER SIZE ISO A4 SIZE 14 inch LEGAL SIZE
inch mm inch mm inch mm
13 inch LEGAL SIZE
inch
13
8.5
12.5
8.0
0.25
0.25
0.25
0.25
mm
330.2
216
317.5
203.2
6.35
6.35
6.35
6.35
General Information 1 - 12 OKIOFFICE 44
Service Manual, P/N 59276801
Table 1.5.1 (5/11) Basic Performance Specifications
No. Item Specifications
12 Copy stacking
13 Scanning resolution
14 Image scanning method
15 Contrast control
The fax can discharge printed copies and stack them faceup.
Maximum sheets on the copy stacker: 30*
Note*: Oki Data recommended paper
Horizontal:
• 8 pel/mm
Vertical:
Transmission mode:
• STD 3.85 line/mm
FINE 7.7 line/mm
EX.FINE 15.4 line/mm
COPY mode:
FINE: 7.7 line/mm
EXFINE 15.4 line/mm
Letter size (1728-bit) contact image sensor
1) Automatic background sensing
A continuous document background of 0.3 OD (optical density)
or less will be transmitted as white.
2) The LIGHT and DARK contrasts will automatically be adjusted to improve image quality.
16 Recording resolution
17 Recording system
18 Skew of recording paper
19 Copy darkness
20 Copy uniformity
Horizontal:
• 300 dot/inch
Vertical:
• STD: 3.85 line/mm
FINE: 7.7 line/mm
Electro-photographic printing
1) 211.3mm (2496 bit) or 216.7mm (2560 bit) LED print head
Maximum allowable skew is + or - 1 mm over an advance of 100
mm. (.03937 inches over 3.937 inches)
1) Black image: Greater than 1.0 OD (Optical density)
2) White background: Not greater than 0.2 OD
(Optical density)
Printed copies will exhibit a uniform density of the printed and
background area:
1) From edge to edge: 25% unit
2) From copy to the next copy: 30% unit
General Information 1 - 13 OKIOFFICE 44
Service Manual, P/N 59276801
Table 1.5.1 (6/11) Basic Performance Specifications
No. Item Specifications
21 Recording paper running out
22 Minimum scan line time for receiving
23 Coding scheme
24 MODEM
1) High-speed MODEM
2) Low-speed MODEM
Detected during print operation only.
Error Message:
PAPER OUT / JAM
CONFIRM AND“STOP”
0 ms, when receiving from an Oki Data facsimile.
5 ms at 7.7 line/mm and 10 ms at 3.85 line/mm when receiving from
a non-Oki Data facsimile.
1) One-dimensional coding scheme:
Modified Huffman (MH)
2) Two-dimensional coding scheme:
Modified READ (MR)
Modified modified READ (MMR)
a) ITU-T Rec. V.29 (9600/7200 bps)
b) ITU-T Rec. V.27 ter (4800/2400 bps)
c) ITU-T Rec. V.17 (14400/12000/9600/7200 bps)
d) ITU-T Rec. V.33 (14400/12000 bps)
ITU-T Rec. V.21 channel 2 (300 bps)
General Information 1 - 14 OKIOFFICE 44
Service Manual, P/N 59276801
Table 1.5.1 (7/11) Basic Performance Specifications
No. Item Specifications
25 Fallback
26 Protocol
Fallback
rank
1st
2nd
3rd
4th
5th
6th
Transmission
speed
14400 bps
12000 bps
9600 bps
7200 bps
4800 bps
2400 bps
Automatic fallback will occur according to the following sequence
by FTT, RTN or PPR.
Activated by
FTT (Times)
1
1
1
1
2
2
Activated by
RTN (Times)
1
1
1
1
1
1
Activated by
PPR (Times)
4 (Note 1)
4 (Note 1)
4 (Note 1)
4 (Note 1)
4 (Note 1)
4 (Note 1)
Protocol
ITU-T V.17 (V.33)
ITU-T V.17 (V.33)
ITU-T V.17 (V.29)
ITU-T V.17 (V.29)
ITU-T V.27 ter.
ITU-T V.27 ter.
When the last trial fails, the transmitting station sends out a DCN
signal to the remote station for disconnection.
Note: Continuous PPRs for the same partial page within each
fallback rank.
1) ITU-T Rec. T.30
2) Oki Data special protocol
High-speed protocol
The T.30 protocol signal from the transmitting station is sent at
message transmission speed instead of 300 bps.
Note: In high-speed protocol, 28.8 K-bps are not supported.
27 Transmission time
28 Error correction
29 Communication mode
30 Ringing signal detection sensitivity
1) Voltage range
2) Frequency range
3) Ring response time
6 sec. /ITU-T No. 1 sample document
Note: This is Phase C time at 3.85 line/mm and 14400 bps for 6
sec. in MMR code transmission.
ITU-T Error correction mode (ECM)
Oki Data ITU-T ECM
Half-duplex
25 to 150 V r.m.s.
Inoperative below 10 V
20 to 68 Hz
One-ringing signal or 5 to 30 seconds.
(Selectable in 5 sec. steps. F + OT9 + ← + 11)
General Information 1 - 15 OKIOFFICE 44
Service Manual, P/N 59276801
Table 1.5.1 (8/11) Basic Performance Specifications
No. Item Specifications
31 Image memory
OKIOFFICE44
Memory
condition
Standard
With
option
board
(without option)
1M-byte
2M-byte
Basic model
256K-byte
20
100
N/A
Optional memory
1M-byte
Note: ITU-T No.1 sample document is used to count the number
of sheets.
Back-up time on electrical interruption:
Note: OKIOFFICE44 does not back up the message received in
memory for the power failure.
32 Telephone handset
(option)
34 Overheat protection
35 PC interface applications (Option)
Note: This function is standard
for OKIOFFICE44.
General telephone function is available while the power is on.
Note: In the fax special versions, general telephone is available
even when the power is off.
The heater of the fuser unit is controlled within the predetermined
temperature range by the thermistor. If the temperature of the
heater exceeds the range, the LCD displays “PRINTER ALARM
4”.
Furthermore, the built-in thermostat in the fuser unit prevents the
heater from being overheated even in the event of the failures in the
above temperature control circuit.
The following four modes are supported:
1) PC local printer function
2) PC scanner function
3) PC FaxModem function
4) Location Programing function
General Information 1 - 16 OKIOFFICE 44
Service Manual, P/N 59276801
Table 1.5.1 (9/11) Basic Performance Specifications
t cannot be enabled or disabled by the user.
No. Item Specifications
36 Power supply unit and power consump-
tion of the machine
Power consumption of the machine
(Typical power)
Transmit
Receive
Local copy
Standby
** Power save mode is automatic for the OKIOFFICE 44.
OKIOFFICE44
19W
115W
150W
10W
I
General Information 1 - 17 OKIOFFICE 44
Service Manual, P/N 59276801
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