Oki OKIPAGE 14i User manual

OKIPAGE 14i
LED Page Printer
SERVICE
MANUAL

Table of Contents Page
Service Manual for OKIPAGE 14i
0 Introduction
Introduction 1
1 Specifications
1.1 System Configuration 2
1.2 Printer Configuration 3
1.3 Optional Configuration 4
1.4 Specification 5
1.5 Safety Standards 6
....1.5.1 Certification Label 7
....1.5.2 Warning Label 8
....1.5.3 Warning/Caution Marking 9
2 Operation
Operation Description 10
2.1 Main Control Board 11
2.2 Power Supply/Sensor Board 12
2.3 Electrophotographic Process 13
....2.3.1 Electrophotographic Process Mechanism 14
....2.3.2 Electrophotographic Process 15
....2.3.3 Process Operation Descriptions 16
....2.3.4 Revision of LED Head Illumination 17
2.4 Paper Jam Detection 18
2.5 Cover Open 19
2.6 Toner Low Detection 20
3 Disassembly
3.1 Precautions for Parts Replacement 21
3.2 Parts Layout - [Lower base unit] 22
........[Upper cover unit] 23
........[Base unit] 24
3.3 How to Change Parts 25
....3.3.1 Upper Cover Assy 26
....3.3.2 LED Head 28
....3.3.3 Operator Panel Assy 29
....3.3.4 Lower Base Unit 30
....3.3.5 Pulse Motor Main/Drum 31
....3.3.6 Pulse Motor (Registration) 32

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....3.3.7 Face Up Stacker Assy 33
....3.3.8 Eject Roller Assy 34
....3.3.9 Motor Assy 35
....3.3.10 Hopping Roller Shaft Assy 36
....3.3.11 Stacker Cover Assy 37
....3.3.12 Registration Roller 38
....3.3.13 Roller Transfer Assy 39
....3.3.14 Fusing Unit 40
....3.3.15 Back-up Roller 41
....3.3.16 Sensor Plate (Inlet) 42
....3.3.17 Sensor Plate (Outlet), Sensor Wire Assy 43
....3.3.18 Manual Feed Guide Assy 44
....3.3.19 Sensor Plate (Paper Supply) 45
....3.3.20 Main Control M7E-PCB 46
....3.3.21 Power Supply/Sensor Board, High Voltage Unit and
Contact Assy 47
....3.3.22 Cassette Guide L Assy 49
....3.3.23 Cassette Guide R Assy 50
....3.3.24 Spacer Bearing (L/R) 51
4 Adjustments
4. Adjustment 52
....4.1 Maintenance Modes and Functions 53
........4.1.1 User Maintenance Mode 54
........4.1.2 System Maintenance Mode 55
........4.1.3 Engine Maintenance Mode 56
........4.1.4 EEPROM Initialization 57
....4.2 Adjustment When Replacing a Part 58
........4.2.1 Uploading/Downloading EEPROM data 60
5 Maintenance
5.1 Periodical Replacement Parts 61
5.2 Cleaning 62
....5.2.1 Cleaning of LED Lens Array 63
....5.2.2 Cleaning Page Function 64
6 Troubleshooting
6.1 Troubleshooting Tips 65
6.2 Points to Check before Correcting Image Problems 66

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6.3 Tips for Correcting Image Problems 67
6.4 Preparation for Troubleshooting 68
6.5 Troubleshooting Flow 69
....6.5.1 LCD Status Message/Problem List 70
....6.5.2 LCD Message Troubleshooting 71
........(1) The printer does not work normally after the power is
turned on. 72
........(2) [JAM error] 73
............Paper input jam 74
............Paper feed jam 75
............Paper exit jam 76
........(3) Paper size error 77
........(4) Fusing unit error (ERROR 71) (ERROR 72) (ERROR
73) 78
........(5) SSIO error (ERROR 74) 79
........(6) Fan error (ERROR 70) 80
....6.5.3 Image Troubleshooting 81
........(1) Images are light or blurred entirely 82
........(2) Dark background density 83
........(3) Blank paper is output 84
........(4) Black vertical belts or stripes 85
........(5) Cyclical defect 86
........(6) Prints voids 87
........(7) Poor fusing 88
........(8) White Vertical belts or streaks 89
........Figure 6-4 90
........Figure 6-5 91
7 Wiring Diagram
7.1 Interconnect Signal Diagram 92
7.2 PCB Layout and Connector Signal List 93
7.3 Resistance Check 94
8 Parts List
Lower Base Unit 96
Upper Cover Unit 97
Base Unit 98
A Centronics Parallel Interface

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Centronics Parallel Interface 99
B Universal Serial Bus (USB)
Universal Serial Bus (USB)
C Loop Test (RS-232C Interface)
Loop Test (RS-232C Interface) 100
D Diagnostics Test
1. Maintenance Modes 101
....1.1 User Maintenance Mode 102
....1.2 System Maintenance Mode 103
....1.3 Engine Maintenance Mode 104
....1.4 User Factory Set Operation 105
Product Accessory 1: RS-232C Serial Interface (Option)
RS-232C Serial Interface (Option) 106
Product Accessory 2: Multi-Purpose Feeder Maintenance
1. PREFACE 107
....1.1 Functions 108
....1.2 External View and Component Names 109
2. MECHANISM DESCRIPTION - General Mechanism 110
....2.2 Hopper Mechanism 111
3. PARTS REPLACEMENT 112
....3.1 Precautions Concerning Parts Replacement 113
....3.2 Parts Layout 114
....3.3 Parts Replacement Methods 115
........3.3.1 Link 116
........3.3.2 Separator 117
........3.3.3 OLEV-11 PCB 118
........3.3.4 Pulse Motor 119
........3.3.5 Planet Gear 120
........3.3.6 Roller-A and B 121
4. TROUBLESHOOTING - Precautions Prior to the
Troubleshooting 122
....4.1 Precautions Prior to the Troubleshooting 122
....4.2 Preparations for the Troubleshooting 123
....4.3 Troubleshooting Method 124
........4.3.1 LCD Status Message List 125
5. CONNECTION DIAGRAM 126

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....5.1 Interconnection Diagram 126
....5.2 PCB Layout 127
6. PARTS LIST 128
Product Accessory 3: High Capacity 2nd Paper Feeder
High Capacity Second Paper Feeder Maintenance 129
1. OUTLINE 130
....1.1 Functions 130
....1.2 External View and Component Names 131
2. MECHANISM DESCRIPTION - General Mechanism 132
....2.1 General Mechanism 132
....2.2 Hopper Mechanism 133
3. PARTS REPLACEMENT 134
....3.1 Precautions Concerning Parts Replacement 135
....3.2 Parts Layout 136
....3.3 Parts Replacement Methods 137
........3.3.1 Stepping Motor (Hopping) 138
........3.3.2 TQSB-2 PCB 139
........3.3.3 Hopping Roller Shaft Assembly and One-way Clutch
Gear 140
4. TROUBLESHOOTING - Precautions Prior to the
Troubleshooting 141
....4.1 Precautions Prior to the Troubleshooting 141
....4.2 Preparations for the Troubleshooting 142
....4.3 Troubleshooting Method 143
........4.3.1 LCD Status Message List 144
5. CONNECTION DIAGRAM 145
....5.1 Interconnection Diagram 146
....5.2 PCB Layout 147
6. PARTS LIST 148
....High Capacity Second Paper Feeder 148
....SECTION 1 CABINET & CASSETTE ASSEMBLY 150
....SECTION 2 MECHANICAL ASSEMBLY 151
....2nd Tray Parts List 152
Product Accessory 4: Network Interface (option)
Network Interface (option)
....1) Connector

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....2) Cable
....3) Signal
....4) Appearance
....5) Physical dimensions
....6) List of protocols
....7) TCP/IP
....8) Netware
....9) EtherTalk
....10) NetBEUI
....11) OKI Original Port
....12) Others
....13) Setup
....14) TROUBLESHOOTING

Service Manual for OKIPAGE 14i
Chapter 0 Introduction
Page: 2
Introduction
This Service Handbook describes the field maintenance methods for OKIPAGE 14i Digital LED Printer. This manual is written for use by the maintenance
personnel. Please note that you should refer to the Printer Handbook and Printer Setup for the handling and operating methods of the equipment.
Copyright 2000, Oki Data, Division of OKI America, Inc. All rights reserved. See the Oki Data Business Partner Exchange
(BPX) for any updates to this material. (http://bpx.okidata.com)

Service Manual for OKIPAGE 14i
Chapter 1 Specifications
Page: 3
1.1 System Configuration
OKIPAGE 14i 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.