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Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (Table of Contents Page Table of Contents Page 0 About This Manual Front Cover 1 Copyright Information 2 1 Product Specifications 1.1.01 General Information 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 - Cut Sheet Feeders 12 ........1.10.02 Pull Tractor Kit 13 ........1.10.04 Bottom Push Tractor Kit 14 ........1.10.05 Serial Interface 15 ........1.10.06 Roll Paper Stand 16 ........1.10.08 OKISmart Typer Utility 17 ....1.11 Reliability 18 2 Principles of Operation 2.1 Electrical Operation 19 ....2.1.01 Main Control Board 20 ........Block Diagram 21 ........Program ROM 22 ........RAM 23 ........LSI 24 ........Electrically Erasable Programmable Read Only Memory 25 (EEPROM) ....2.1.02 Initialization 26 ....2.1.03 Parallel Interface Control 27 ....2.1.04 Print Control 28 ........LSI/Printhead Interface 29 ........Gap Adjust Control 30 ........Print Compensation Control 31 ....2.1.05 Space and Line Feed (SP/LF) Motor Control 32 ........Line Feed Motor Control 33 ........Space Motor Control 34 ........Encoder Disk 35 ....2.1.06 Operation Panel 36 ....2.1.07 Alarm Circuit 37 ........Low Motor Drive Voltage Alarm 38 Table of Contents Page Table of Contents Page 2.2 Mechanical Operation - Printhead Mechanism 43 ........Printhead Gap Information 44 ........Interconnect Diagram: Control Board to Printhead 45 ........Line Feed Motor Resistance 46 ........Space Motor Resistance 47 ........Printhead Operation 48 ........Printhead Temperature 49 ....2.2.02 Spacing Mechanism 50 ........Spacing Operation 51 ....2.2.03 Head Gap Mechanism 52 ........Ribbon Drive Operation 53 ....2.2.05 Line Feed Mechanism 54 ........Cut Sheet/Continuous Sheet Switching Mechanism 55 ........Cut Sheet Paper Feed Operation 56 ........Continuous Paper Feed (Rear Tractor Mechanism) 57 ........Continuous Paper Feed (Pull Tractor Mechanism) 58 ........Continuous Paper Feed (Bottom Tractor Feed 59 Mechanism) ........Continuous Paper Feed (Push/Pull Tractor Mechanism) 60 ....2.2.06 Paper Detection Mechanism 61 ....2.2.07 Support Protector Mechanism 62 ....2.2.08 Automatic Paper Load 63 ........Continuous Feed Paper 64 ....2.2.09 Paper Park 65 3 Maintenance & Disassembly ....3.1.01 General Information 66 ....3.1.02 Maintenance Tools 67 ....3.1.03 Maintenance Precautions 68 3.2 Disassembly/Assembly Procedures 69 ....3.2.01 Preliminary Items 70 ....3.2.02 Printhead Assembly 71 ....3.2.03 Ribbon Protector 72 ....3.2.04 Gear Case Assembly 73 ....3.2.05 Pull-up Roller Assembly 74 ....3.2.06 Upper Cover, Access Cover, and Sheet Guide 75 Assemblies ....3.2.07 Control Board (FJIM) 76 ....3.2.08 Power Supply Assembly 77 ....3.2.09 Operator Panel PCB (LEOP) 78 ....3.2.10 PC Connector 79 Table of Contents Page Table of Contents Page 3.3 Printer Adjustments 100 ....3.3.02 Printhead Gap Adjustment 101 ....3.3.03 Key Combinations 102 ....3.3.04 Menu Operation 103 ........Menu Settings 104 ....3.3.05 Top of Form 105 ....3.3.06 Paper Park 106 ....3.3.07 Tear Feature 107 ....3.3.08 Forms Tear Off 108 ....3.3.09 Resets 109 3.4 Cleaning 110 3.5 Lubrication 111 3.6 Shipping Instructions 112 4 Failure & Repair Analysis ....4.1.01 Introduction 113 ....4.1.02 Printer Serial Number Identification 114 ....4.1.03 Firmware Revision Identification 115 4.2 Reporting Problems - General Information 116 ....4.2.02 Problem Lists 117 ....4.2.03 Reporting Methods 118 4.3 Troubleshooting Updates 119 4.4 Troubleshooting Tips 120 ....4.4.02 Problem Categories 121 ....4.4.03 START HERE Flowchart 122 Table of Contents Page Table of Contents Page 4.5 Abnormal Output - Output Samples 125 ....Left Margin Drifting Problem 126 4.6 Fault Alarms 127 ....4.6.02 ALARM/LED Display Troubleshooting Table Index 128 ....4.6.03 ALARM/LED Display Troubleshooting Tables 129 4.7 Repair Analysis Procedures (Raps) 130 ....4.7.02 RAP Index 131 ........RAP 01 No Power Supplied to Printer 132 ........RAP 02 No Spacing Operation 133 ........RAP 03 Printhead Homing Error 134 ........RAP 04 Paper Jam During Paper Loading 135 ........RAP 05 Printhead Pins Not Firing 136 ........RAP 06 Poor Print Quality 137 ........RAP 07 Ribbon Feed Problem 138 ........RAP 08 Line Feed Problem 139 ........RAP 09 Operation Panel Malfunction 140 ........RAP 10 Parallel Interface Problem 141 ........RAP 11 Serial Interface Problem 142 4.8 Printer Tests 143 ....4.8.02 Rolling ASCII Test 144 ....4.8.03 Font Test 145 ....4.8.04 Serial Interface Loopback Test 146 ........Serial Cable Information 147 ........Serial Interface Signal Requirements 148 ........Commonly Used Serial Cable Configurations 149 ....4.8.05 Hexadecimal Dump Mode 150 4.9 Res...
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