OKIDATA Pacemark 3410 User manual

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Service Guide PM3410
Chapter 0 About This Manual
Pacemark 3410
Dot Matrix Printer
Adobe Acrobat printable reference
copy of the OKIDATA Service Training Manual.
09/17/97
Note: This Adobe Acrobat version of the Okidata Service Training Manual was built with the
pictures rendered at 300 dpi, which is ideal for printing, but does not view on most
displays well.
Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business
Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)

Table of Contents Page
Service Guide PM3410
0 About This Manual
Front Cover 1
Manual Copyright 2
1 Product Specifications
1.1 Overview 3
1.2 Physical Specifications 4
1.3 Power Requirements 5
1.4 Environmental Conditions 6
1.5 Agency Approvals 7
1.6 Operational Specifications 8
1.7 Paper Specifications 9
1.8 Memory Specifications 10
1.9 Consumables 11
1.10 Options 12
1.11 Reliability 13
2 Principles of Operation
2.1 Electrical Operation - General Information 14
....2.1.02 Microprocessor (MPU) and Peripheral Circuits 15
....2.1.03 Initialization 16
....2.1.04 Interface Control 17
....2.1.05 Printhead Drive Circuit 18
....2.1.06 Spacing Drive Circuit 19
....2.1.07 Line Feed Circuit 20
....2.1.08 Alarm Circuits 21
....2.1.09 Paper End Detection Circuit 22
....2.1.10 Power Supply 23
2.2 Mechanical Operation - Printhead Mechanism 24
....2.2.02 Spacing Mechanism 25
....2.2.03 Ribbon Drive Mechanism 26
....2.2.04 Paper Feed Mechanism 27
....2.2.05 Paper-End Detection Mechanism 28
....2.2.06 Automatic Paper Loading 29
....2.2.07 Paper Park Feature 30
3 Maintenance & Disassembly
3.1 Overview 31
....3.1.02 Maintenance Items 32
....3.1.03 Maintenance Precautions 33
3.2 Disassembly/Assembly Procedures 34
....3.2.01 Printhead (with Preliminary Items) 35
....3.2.02 Ribbon Protector Assembly 36
....3.2.03 Upper Cover Assembly 37
....3.2.04 Operator Panel 38

Table of Contents Page
....3.2.05 Interface Connector Board 39
....3.2.06 Main Logic (CBNP) Board 40
....3.2.07 Printer Mechanism 41
....3.2.08 Power Supply Unit 42
....3.2.09 Printer Unit 43
....3.2.10 BTFD PCB 44
....3.2.11 Tension Spring 45
....3.2.12 Bottom Push Mechanism and Front Door Assembly 46
....3.2.13 Drive Pulley and Belt 47
....3.2.14 Tractor Assembly (BTF) 48
....3.2.15 Line Feed Motor (BTF) 49
....3.2.16 Platen Assembly 50
....3.2.17 Paper Pressure Guide 51
....3.2.18 Line Feed Motor Assembly 52
....3.2.19 Ribbon Cartridge Bracket 53
....3.2.20 Fan Assembly 54
....3.2.21 Head Cable Assembly 55
....3.2.22 Carriage and Carriage Shaft 56
....3.2.23 Ribbon Feed Assembly 57
....3.2.24 Space Motor Assembly 58
....3.2.25 Space Belt 59
....3.2.26 Sensor Board (LPRW) 60
....3.2.27 Bail Motor/Gear Assembly 61
....3.2.28 Paper Bail Assembly 62
....3.2.29 Rear Feed Tractor Assembly 63
....3.2.30 Printhead Gap/Release Lever Microswitches 64
....3.2.31 Release Lever / Gear Assemblies 65
3.3 Printer Adjustments 66
....3.3.02 Printhead Gap 67
....3.3.02 Line Feed Belt Tension 68
....3.3.03 Key Combinations 69
....3.3.04 Menu Operation 70
........Menu Settings 71
....3.3.05 Top Of Form 72
....3.3.06 Paper Park 73
....3.3.07 Forms Tear Off 74
....3.3.08 Resets 75
3.4 Cleaning 76
3.5 Lubrication 77
....3.5.02 Areas Not Lubricated 78
....3.5.03 Lubrication Diagrams 79
........Right and Left Sides of Printer 80
........Carriage Shaft 81
........Ribbon Feed Assembly 82

Table of Contents Page
........Space Motor Assembly 83
........Tractor Feed Assembly 84
3.6 Shipping Instructions 85
....3.6.02 All Other Returns 86
4 Failure & Repair Analysis
4.1 Failure & Repair Analysis - Introduction 87
....4.1.02 Printer Serial Number Identification 88
4.2 Reporting Problems 89
....4.2.02 Problem Lists 90
....4.2.03 Reporting Methods 91
4.3 Troubleshooting Updates 92
4.4 Troubleshooting Tips 93
....4.4.02 Problem Categories 94
....4.4.03 START HERE Flowchart 95
....4.4.04 Tips for Preventing Image Problems 96
....4.4.05 Common Problems 97
4.5 Abnormal Output 98
4.6 Fault Alarms 99
4.7 Repair Analysis Procedures (RAPS) 100
....4.7.02 RAP Index 101
........RAP 01: Power Lamp Does Not Light 102
........RAP 02: Spacing Error 103
........RAP 03: Head Homing Error 104
........RAP 04: Bail Homing Error 105
........RAP 05: Ribbon Feed Problem 106
........RAP 06: Wrong Character, Character Omission or Dot
Omission 107
........RAP 07: Line Feed Problem 108
........RAP 08: Malfunction of Operator Panel Switch 109
........RAP 09: Data Receiving Failure 110
........RAP 10: ALARM Lamp ON 111
........RAP 11: Bottom Tractor Feed Unit (BTFU) Problem 112
4.8 Printer Tests - Rolling Ascii Test 113
....4.8.02 Font Sample Test 114
........Sample - Part 1 115
........Sample - Part 2 116
....4.8.03 Serial Interface Diagnostic 117
....4.8.04 Hexadecimal Dump 118
4.9 Resistance Checks 119
....4.9.02 Printhead 120
....4.9.03 Line Feed Motor 121
....4.9.04 Space Motor 122
....4.9.05 Bail Motor 123
A Board Diagrams

Table of Contents Page
A.1 Overview 124
A.2 Index To Charts 125
....A.2.01 Main Logic Board (CBNP) 126
....A.2.02 Power Supply Board 127
....A.2.03 Interface Board (HKTY) 128
....A.2.04 Sensor Board (LPRW) 129
....A.2.05 Operator Panel Board (OPML) 130
....A.2.06 Bottom Tractor Feed Unit Board (BTFD) 131
B Illustrated Parts Listing
B.1 Overview 132
....B.1.02 Definition of Terms 133
....B.1.03 Parts Ordering Information 134
B.2 Charts 135
....B.2.01 Printer 136
....B.2.02 Upper Cover Assembly 137
....B.2.03 Printer Unit 138
....B.2.04 Operator Panel Assembly 139
....B.2.05 Carriage Assembly 140
....B.2.06 Printer Mechanism (1 of 2) 141
....B.2.07 Printer Mechanism (2 of 2) 142
....B.2.08 Bottom Tractor Feed Unit 143
....B.2.09 Options 144
....B.2.10 Pull Tractor Unit (Option) 145
....B.2.11 Packing Materials 146
....B.2.12 Consumables 147
....B.2.13 Documentation 148

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Service Guide PM3410
Chapter 0 About This Manual
This document may not be reproduced without the written permission of the Okidata® Technical
Training Group. Every 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.
© 1994 by Okidata All rights reserved.
First Edition January, 1992 P/N 59249701
Second Edition October, 1994 P/N 59249702
Written and produced by the Okidata Technical Training Group
Please address any comments on this publication to:
Technical Training Group
Okidata
532 Fellowship Road
Mount Laurel, NJ 08054-3499
Fax Number: [phone], ext. 7034
Okilink Login Name: Technical Training
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.
MICROLINE is a trademark of Oki Electric Industry Company, Ltd.
PACEMARK is a trademark of Oki Electric Industry Company, Ltd.
IBM and Proprinter are registered trademarks of International Business Machines Corporation.
Centronics is a registered trademark of the Centronics Corporation
Epson and Epson FX are registered trademarks of Seiko Epson Corporation
Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business
Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)

Page: 3
Service Guide PM3410
Chapter 1 Product Specifications
1.1 OVERVIEW
1.1.01 General Information
The Pacemark 3410 is a high speed, dot matrix printer, which utilizes a 9 pin printhead.
The printer is capable of emulating the IBM Proprinter or the Epson FX printers.
The Pacemark 3410 comes standard with both an RS232-C Serial Interface and a Centronics Parallel
Interface. Also standard is the bottom push tractor feed unit.
Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business
Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)

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Service Guide PM3410
Chapter 1 Product Specifications
1.2 PHYSICAL SPECIFICATIONS
1.2.01 Printer Dimensions
NOTE:
Dimensions include the bottom feed unit.
Width: 25.5 inches (54.0 centimeters)
Depth: 19 inches (48.3 centimeters)
Height: 15 inches (20.3 centimeters)
1.2.02 Printer Weight
63 pounds (25.4 kilograms)
United Parcel Service (UPS) shippable
Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business
Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)

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Service Guide PM3410
Chapter 1 Product Specifications
1.3 POWER REQUIREMENTS
1.3.01 Input Power
Input Voltage
120 VAC +5.5%, -15%
220/240 +10%, -10%
Frequency
50/60 hz. +/-2%
1.3.02 Power Consumption
Operating: 75 W
Idle: 30 W
Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business
Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)

Page: 6
Service Guide PM3410
Chapter 1 Product Specifications
1.4 ENVIRONMENTAL CONDITIONS
1.4.01 Acoustic Rating
58.5 dBa
1.4.02 Altitude
10,000 feet (3,048 meters)
1.4.03 Ambient Temperature and Relative Humidity
In Operation
41 to 95 degrees Fahrenheit (5 to 35 degrees Celsius)
@ 20% - 80% Relative Humidity
In Storage
14 to 122 degrees Fahrenheit (-10 to 50 degrees Celsius)
@ 5% - 95% Relative Humidity
Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business
Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)