Service Manuals, User Guides, Schematic Diagrams or docs for : oki Printers LED 12i 12i_mm
<< Back | HomeMost service manuals and schematics are PDF files, so You will need Adobre Acrobat Reader to view : Acrobat Download Some of the files are DjVu format. Readers and resources available here : DjVu Resources
For the compressed files, most common are zip and rar. Please, extract files with Your favorite compression software ( WinZip, WinRAR ... ) before viewing. If a document has multiple parts, You should download all, before extracting.
Good luck. Repair on Your own risk. Make sure You know what You are doing.
Image preview - the first page of the document
>> Download 12i_mm documenatation <<
Text preview - extract from the document
OKIPAGE 12i
LED Page Printer
Maintenance Manual
ODA / OEL / INT
Rev.5 99. 11. 30
40718301TH Rev.5 1 / 210
CONTENTS
1. CONFIGURATION .................................................................................................. 5
1.1 System Configuration ..................................................................................... 5
1.2 Printer Configuration ....................................................................................... 7
1.3 Optional Configuration .................................................................................... 8
1.4 Specification ................................................................................................... 11
1.5 Safety Standards ............................................................................................ 13
1.5.1 Certification Label ................................................................................................... 13
1.5.2 Warning Label ........................................................................................................ 13
1.5.3 Warning/Caution Marking ....................................................................................... 14
2. OPERATION DESCRIPTION ................................................................................. 15
2.1 Main Control Board ......................................................................................... 17
2.2 Power Supply/Sensor Board ........................................................................... 18
2.3 Electrophotographic Process .......................................................................... 20
2.3.1 Electrophotographic Process Mechanism .............................................................. 20
2.3.2 Electrophotographic Process ................................................................................. 23
2.3.3 Process Operation Descriptions ............................................................................. 26
2.3.4 Revision of LED Head Illumination36
2.4 Paper Jam Detection ...................................................................................... 40
2.5 Cover Open .................................................................................................... 42
2.6 Toner Low Detection ....................................................................................... 43
3. PARTS REPLACEMENT........................................................................................ 45
3.1 Precautions for Parts Replacement ................................................................ 45
3.2 Parts Layout.................................................................................................... 47
3.3 How to Change Parts ...................................................................................... 50
3.3.1 Upper Cover Assy .................................................................................................. 51
3.3.2 LED Head ............................................................................................................... 52
3.3.3 Operator Panel Assy .............................................................................................. 53
3.3.4 Lower Base Unit ..................................................................................................... 54
3.3.5 Pulse Motor (Main/Drum) ....................................................................................... 55
3.3.6 Pulse Motor (Registration) ...................................................................................... 56
3.3.7 Face Up Stacker Assy ............................................................................................ 57
3.3.8 Eject Roller Assy .................................................................................................... 58
3.3.9 Motor Assy ............................................................................................................. 59
3.3.10 Hopping Roller Shaft Assy ..................................................................................... 60
3.3.11 Stacker Cover Assy ................................................................................................ 61
3.3.12 Registration Roller .................................................................................................. 62
3.3.13 Roller Transfer Assy ............................................................................................... 63
3.3.14 Fusing Unit ............................................................................................................. 64
3.3.15 Back-up Roller ........................................................................................................ 65
3.3.16 Sensor Plate (Inlet) ................................................................................................. 66
3.3.17 Sensor Plate (Outlet) .............................................................................................. 67
3.3.18 Manual Feed Guide Assy ....................................................................................... 68
3.3.19 Sensor Plate (Paper Supply) .................................................................................. 69
3.3.20 M5E-PCB ............................................................................................................... 70
3.3.21 Transformer ............................................................................................................ 71
3.3.22 Power Supply/Sensor Board and Contact Assy ..................................................... 72
3.3.23 Cassette Guide L Assy ........................................................................................... 73
3.3.24 Cassette Guide R Assy .......................................................................................... 74
3.3.25 Spacer Bearing (L/R) .............................................................................................. 75
40718301TH Rev.5 2/
4. ADJUSTMENT ........................................................................................................ 76
4.1 Maintenance Modes and Functions ................................................................ 76
4.1.1 User Maintenance Mode ........................................................................................ 76
4.1.2 System Maintenance Mode .................................................................................... 76
4.1.3 Engine Maintenance Mode ..................................................................................... 77
4.1.4 EEPROM initialization ............................................................................................ 78
4.2 Adjustment When Replacing a Part ................................................................ 79
4.2.1 Setting of LED Head Drive Time ............................................................................ 79
4.2.2 Uploading/Downloading EEPROM data ................................................................. 82
5. PERIODICAL MAINTENANCE .............................................................................. 83
5.1 Periodical Replacement Parts ........................................................................ 83
5.2 Cleaning.......................................................................................................... 83
5.2.1 Cleaning of LED Lens Array ................................................................................... 83
5.2.2 Cleaning Page Function ......................................................................................... 85
6. TROUBLESHOOTING PROCEDURES ................................................................. 86
6.1 Troubleshooting Tips ...................................................................................... 86
6.2 Points to Check before Correcting Image Problems....................................... 86
6.3 Tips for Correcting Image Problems ............................................................... 86
6.4 Preparation for Troubleshooting ..................................................................... 87
6.5 Troubleshooting Flow ..................................................................................... 88
6.5.1 LCD Status Message/Problem List ........................................................................ 88
6.5.2 LCD Message Troubleshooting .............................................................................. 99
6.5.3 Image Troubleshooting ........................................................................................... 108
7. WIRING DIAGRAM ................................................................................................ 119
7.1 Interconnect Signal Diagram .......................................................................... 119
7.2 PCB Layout and Connector Signal List .......................................................... 120
7.3 Resistance Check ........................................................................................... 129
7.4 Short Plug Setting ........................................................................................... 131
8. PARTS LIST ........................................................................................................... 132
APPENDIX A RS-232C SERIAL INTERFACE (OPTION) ......................................... 139
APPENDIX B CENTRONICS PARALLEL INTERFACE ............................................ 144
APPENDIX C LOOP TEST (RS-232C INTERFACE) ................................................. 150
APPENDIX D DIAGNOSTICS TEST .......................................................................... 151
APPENDIX E MULTI PURPOSE FEEDER MAINTENANCE ..................................... 159
1. OUTLINE ........................................................................................................ 159
1.1 Functions ................................................................................................................ 159
1.2 External View and Component Names .................................................................. 159
2. MECHANISM DESCRIPTION ........................................................................ 160
2.1 General Mechanism ............................................................................................... 160
2.2 Hopper Mechanism ................................................................................................ 160
3. PARTS REPLACEMENT ................................................................................ 161
3.1 Precautions Concerning Parts Replacement ......................................................... 161
3.2 Parts Layout ........................................................................................................... 163
40718301TH Rev.5 3/
3.3 Parts Replacement Method164
3.3.1 Link ......................................................................................................... 165
3.3.2 Separator ................................................................................................ 166
3.3.3 OLEV-11-PCB ........................................................................................ 167
3.3.4 Pulse Motor ............................................................................................ 168
3.3.5 Planet Gear ............................................................................................ 169
3.3.6 Roller-A and B ........................................................................................ 170
4. TROUBLESHOOTING .................................................................................... 171
4.1 Precautions Prior to the Troubleshooting ............................................................... 171
4.2 Preparations for the Troubleshooting ..................................................................... 171
4.3 Troubleshooting Method ......................................................................................... 172
4.3.1 LCD Status Message List ....................................................................... 172
5. CONNECTION DIAGRAM .............................................................................. 174
5.1 Interconnection Diagram ........................................................................................ 174
5.2 PCB Layout ............................................................................................................ 175
6. PARTS LIST ................................................................................................... 176
APPENDIX F HIGH CAPACITY SECOND PAPER FEEDER .................................... 178
1. OUTLINE ........................................................................................................ 178
1.1 Functions ................................................................................................................ 178
1.2 External View and Component Names .................................................................. 178
2. MECHANISM DESCRIPTION ........................................................................ 179
2.1 General Mechanism ............................................................................................... 179
2.2 Hopper Mechanism ................................................................................................ 179
3. PARTS REPLACEMENT ................................................................................ 180
3.1 Precautions Concerning Parts Replacement ......................................................... 180
3.2 Parts Layout ........................................................................................................... 182
3.3 Parts Replacement Methods .................................................................................. 183
3.3.1 Stepping Motor (Hopping) ...................................................................... 184
3.3.2 TQSB-2 PCB .......................................................................................... 186
3.3.3 Hopping Roller Shaft Assy and One-way Clutch Gear ........................... 186
4. TROUBLESHOOTING .................................................................................... 187
4.1 Precautions Prior to the Troubleshooting ............................................................... 187
4.2 Preparations for the Troubleshooting ..................................................................... 187
4.3 Troubleshooting Method ......................................................................................... 188
4.3.1 LCD Status Message List ....................................................................... 188
5. CONNECTION DIAGRAM .............................................................................. 190
5.1 Interconnection Diagram ........................................................................................ 190
5.2 PCB Layout ............................................................................................................ 191
6. PARTS LIST ................................................................................................... 192
APPENDIX G NETWORK INTERFACE (OPTION) .................................................... 199
40718301TH Rev.5 4/
1. CONFIGURATION
1.1 System Configuration
OKIPAGE 12i consists of control and engine blocks in the standard configuration, as shown in Figure
1-1.
In addition, the options marked with asterisk(*) are available.
40718301TH Rev.5 5/
Operator Panel
Engine Unit
Paper
Cassette Face Up
Stacker
*High Capacity
Second Paper Paper Feeding Mechanism
Feeder (First Tray Unit) Face
*Multi Purpose Down
Feeder
Electrophotographic Stacker
Processing Unit
Power Supply
and Sensor Board
Centronics
Main Control Board
Memory* * : Optional
Expansion Board ** : Optional (ODA/INT)
1 DRAM SIMM Socket
1 Flash SIMM Socket
DRAM SIMM*
or
RS-232C RS-232C Serial*
Interface Board
1 DRAM SIMM Socket
1 Flash SIMM Socket
or
Flash SIMM*
Network** (Flash memory)
LAN
(10 BASE-T) Interface Board
1 DRAM SIMM Socket
1 Flash SIMM Socket
Figure 1-1
40718301TH Rev.5 6/
1.2 Printer Configuration
The printer unit consists of the following hardware components:
◦ Jabse Service Manual Search 2024 ◦ Jabse Pravopis ◦ onTap.bg ◦ Other service manual resources online : Fixya ◦ eServiceinfo