OKIDATA Pacemark 3410 User manual

Page: 1
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

Page: 2
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)

Page: 4
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)

Page: 5
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)

Page: 7
Service Guide PM3410
Chapter 1 Product Specifications
1.5 AGENCY APPROVALS
1.5.01 Listings
North America
FCC Class B
UL 478 (Office Machines and Business Equipment)
CSA 22.2 (220)
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: 8
Service Guide PM3410
Chapter 1 Product Specifications
1.6 OPERATIONAL SPECIFICATIONS
1.6.01 Character Matrix Sizes
Print Mode Horizontal Vertical
Near Letter Quality 24 17
Utility 12 9
High Speed Draft 9 9
1.6.02 Characters Per Line
136 Characters @ 10 cpi
163 Characters @ 12 cpi
204 Characters @ 15 cpi
233 Characters @ 17.1 cpi
272 Characters @ 20 cpi
1.6.03 Character Pitches
10, 12, 15, 17.1, 20
1.6.04 Character Sets
Standard ASCII
Epson Character Set I
Epson Character Set II
IBM Character Set I
IBM Character Set II
IBM ALL (Proprinter) Character Set
Foreign Language Substitution (International Characters)
Line Graphics
Code Pages: 850, 863
1.6.05 Emulations
NOTE:

The Plug-in Chip Set for Microline/Pacemark Emulation is installed by a technician.
Resident
Epson FX-1050
IBM Proprinter III
Optional Plug-in Chip Set
Microline/Pacemark
1.6.06 Fonts
Standard
Near Letter Quality
Courier
Gothic
Proportional
Draft
Utility
High Speed Draft
Custom Characters
Barcode
Code 128 (ABC)
Code 3 of 9
EAN 8
EAN 13
Interleaved 2 of 5
POSTNET
UPC-A
UPC-E
1.6.07 Front Panel Switches

Select Paper Park
Menu Mode Pitch Selection
Line Feed Print Quality Selection
Form Feed Tear
Top of Form Micro Feed Up / Down
1.6.08 Graphics Resolution
Maximum: 240 x 216 dots per inch (dpi)
1.6.09 Interface Methods
Standard
Centronics Parallel Interface
RS232-C Serial Interface (19.2 KB)
Optional
Twin-ax or Co-ax
Available from a third party vendor. Call 1-800-OKIDATA [1-800-654-3282] for more information.
1.6.10 Line Feed Increments
1/6" (Selected through the Menu)
1/8" (Selected through the Menu)
n/72"
n/144"
n/216"
1.6.11 Line Feed Time
10.0 Inches Per Second (IPS) slew rate (when Printhead Gap Lever is set at 1 or 2)

6 IPS slew rate (when Printhead Gap Lever is set at 3 or 4)
5 IPS slew rate (when Printhead Gap Lever is set at 5 through 9)
1.6.12 Menu Mode
Print: Prints the entire menu.
Group: Selects Group Function
Item: Selects Item
Set: Selects Item Value
Exit: Exits Menu Mode, Enters Select
1.6.13 Paper Feed Methods
Built-in Push Tractor (Bottom)
Built-in Push Tractor (Rear)
Friction Feed (Top)
Bottom Push Tractor Feed Unit
Optional Pull Tractor (Bottom / Rear)
Optional Cut Sheet Feeders (Single and Dual Bin)
1.6.14 Paper Feed Paths
Bottom Feed
Rear Feed
Top Feed
Special Features
Paper Park
Automatic Paper Loading

Forms Tear Off
1.6.15 Paper Loading
Auto Bail Arm for Auto Loading
1.6.16 Paper Out Detection
Distance from end of paper
Rear Feed: 2.30 inches (58.42 mm)
Bottom Feed: .94 inches (23.88 mm)
Cut Sheet: .93 inches (23.62 mm)
1.6.17 Paper Tear Capabilities
Form Tear-Zero Tear
Metal Tear Bar
1.6.18 Print Method
Printhead Type
General Information
Impact, Dot Matrix
Staggered, 9 pin, stored energy printhead
0.36 mm diameter pins
Installed by Service Technician
The Printhead Gap Adjustment must be performed when the printhead is replaced.
Overheat Protection
When the printhead temperature reaches 115 degrees Celsius, the printer stops bi-directional printing. Uni-directional printi
If the temperature continues to rise (125° Celsius), printing stops.
Printing will resume when the printhead temperature drops below 115 degrees Celsius.

1.6.19 Print Modes
Near Letter Quality (NLQ)
Utility
High Speed Draft
1.6.20 Print Speeds
Pitch High Speed Draft Utility Near Letter Quality
10 cpi 550 cps 417 cps 104 cps
12 cpi 550 cps 417 cps 104 cps
15 cpi 550 cps 417 cps 104 cps
17.1 cpi 550 cps 417 cps 104 cps
20 cpi 550 cps 417 cps 104 cps
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: 9
Service Guide PM3410
Chapter 1 Product Specifications
1.7 PAPER SPECIFICATIONS
1.7.01 Types
Card Stock
Weight: 120 lbs. (450 g/m 2 ) Maximum
Width: 5 to 14 inches (12.7 to 35.6 centimeters)
Length: 3 to 17 inches (7.62 to 43.18 centimeters)
Thickness: .02 inches (0.5 millimeters)
Paper Feed Path: Bottom
Head Gap Lever Setting: 8 - 9
Continuous Form
Weight:
Single Part 12 - 24 lb. (45 to 90 g/m 2 )
Multi-Part, Carbonless 9 - 11 lb. (35 to 40 g/m 2 )
Multi-Part, Interleaf Paper 10 - 12 lb. (38 to 45 g/m 2 ) Carbon 9 lb. (35 g/m 2 )
Width: 3 to 16 inches (76.2 to 406.4 millimeters)
Length: 3 to 17 inches (7.62 to 43.18 centimeters)
Thickness: 0.014 inches (0.36 millimeters) Rear Feed 0.02 inches (0.5 millimeters) Bottom Feed
Paper Feed Path: Rear or Bottom
Head Gap Lever Setting: 1 Single Part 12 - 15 lb. (45 to 56 g/m 2 )
1 - 2 Single Part 20 - 24 lb. (75 to 90 g/m 2 )
2 - 3 Two Part
3 - 4 Three Part
5 Four Part
6 Five Part
7 Six Part
Cut Sheet
Weight: 12 to 24 lbs. (45 to 90 g/m 2 )
Width: 7.2 to 14.3 inches (18.3 to 36.3 centimeters)
Length: 3 to 17 inches (7.62 to 43.18 centimeters)
Thickness: 0.014 inches (0.325 millimeters) Maximum
Paper Feed Path: Top
Head Gap Lever Setting: 1 12 - 15 lb. (45 to 56 g/m 2 )

1 - 2 20 - 24 lb. (75 to 90 g/m 2 )
Envelopes
Weight: 24 lbs. (90 g/m 2 ) Maximum
Size:
Single Feed
Minimum: 6.5 x 3.6 inches (16.5 x 9.1 centimeters)
Maximum: 9.5 x 4.1 inches (24.1 x 10.4 centimeters)
Continuous
Non-overlap type
Thickness: .014 inches (.325 millimeters) Maximum
Paper Feed Path: Bottom
Head Gap Lever Setting: 5 - 9
Labels
Weight: N/A
Width: 3 to 16 inches (7.62 to 40.64 centimeters)
Length: 3 to 17 inches (7.62 to 43.18 centimeters)
Thickness: .011 inches (0.28 mm) Maximum (including backing)
Paper Feed Path: Bottom
Head Gap Lever Setting: 3 - 4
Transparency
NOTE:
Roller marks may mar the transparency under high temperature / high humidity conditions.
Weight: 12 to 24 lbs. (45 to 90 g/m 2 )
Width: 7.2 to 14.3 inches (18.3 to 36.3 centimeters)
Length: 3 to 17 inches (7.62 to 43.18 centimeters)
Thickness: 0.14 inches (0.36 millimeters)
Paper Feed Path: Top
Head Gap Lever Setting: 1 12 - 15 lb.
1 - 2 20 - 24 lb.
1.7.02 Length
NOTE:
The recommended length is specific to paper type.
Rear Feed
Minimum 3 inches (7.62 centimeters)
Maximum 17 inches (43.18 centimeters)
Bottom Feed
Minimum 3 inches (7.62 centimeters)

Maximum 17 inches (43.18 centimeters)
Top Feed
Minimum 3 inches (7.62 centimeters)
Maximum 17 inches (43.18 centimeters)
1.7.03 Number of Copies
Original + 5 Interleaf
Original + 7 Carbonless
Original + 3 Cut Sheet (top edge must be glued tight)
1.7.04 Thickness
0.014 inches / 0.36 mm Maximum Thickness, Rear Feed
0.020 inches / 0.50 mm Maximum Thickness, Bottom Feed
1.7.05 Weight
NOTE:
The recommended weight is specific to paper type.
Minimum: 9 lb. (35 g/m 2 )
Maximum: 24 lb. (90 g/m 2 )
1.7.06 Width
NOTE:
The recommended width is specific to paper type.
Minimum: 3 inches
Maximum: 16 inches
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)