User ManualTable of ContentsFRONT MATTER1CONTENTS8CHAP 1-PRINTER FEATURES10Options15Hardware Specifications15Printing Method15Paper Handling16Precautions for Handling Paper17Paper Specifications18Specifications for Cut Sheets (Standard Paper)18Printable Area20Ribbon Cartridges22Electrical Specifications23Environmental Conditions23Reliability23Safety Approvals24Firmware Specifications24Print Control24Input Data Buffer25Interfaces25Parallel Interface25Optional Interfaces28Control Panel29Buttons29Indicators31Default Settings32Power On Default Settings34Self-Test34Hexadecimal Dump35Paper-out Detection36Auto Tear-Off36Buffer Full Printing36Thermal Protection36High-Duty Printing36Sheet Loading and Sheet Ejection36Adjust Lever Operation37Printer Initialization38Buzzer39Main Components40C094 MAIN Board Assembly (Main Control Circuit Board)41C094 PNL Board Assembly (Control Panel Circuit Board)42C076 PSB Board Assembly (Power Supply Circuit Board)42Printer Mechanism43Housing Assembly44Commonly Asked Questions and Answers45CHAP 2-INSTALLATION AND SETUP PROCEDURES48Site Requirements49Removing the Packing Materials49The Correct Power On Sequence49Running the Self-Test50Connecting Printer Cables50Parallel Cables50Serial Cables50Checking the Printer with the Computer51Parallel Connection to an MS-DOS Computer51Serial Connection to an MS-DOS Computer52Tips to Increase Printer Life52CHAP 3-TROUBLESHOOTING53Test Points54Error Codes58Problem Isolation59Serial Communications Errors60Connector Locations71Sensor Locations72Hex Quick Reference Table for ESC/P Commands74Hex Quick Reference Table for IBM Commands76CHAP 4-DISASSEMBLY AND ASSEMBLY78Precautions80Tools80Service Checks After Repair81Screw Specifications82Notes for Unit Removal and Installation83Items to Remove Before Disassembling the Printer84Removing the Panel Unit85Removing the Printhead86Removing the Upper Housing Assembly -_87Removing the Printer Mechanism88Removing the Platen Assembly89Removing the Rear Frame Assembly90Removing the CR Motor Assembly91Removing the PF Motor Assembly92Disassembling the PF Gear Train93Removing the Carriage Assembly94Removing the Ribbon Drive (RD) Assembly96Removing the Home Position (HP) Sensor97Removing the Platen Gap (PG) Sensor97Removing the Front and Rear Paper End (PE) Sensors98Removing the Release Sensor99Arranging the Cables100Disassembling the Tractor Unit101Removing the C094 MAIN Board Assembly102Removing the C076 PSB Board Assembly103CHAP 5-ADJUSTMENTS, MAINTENANCE, AND LUBRICATION105Adjusting the Printer Mechanism106Platen Gap Adjustment106Bidirectional Alignment Adjustment108Overview of the Bidirectional Alignment Adjustment108Bidirectional Alignment Adjustment Procedure108Preventive Maintenance110Lubrication110CHAP 6-PRINCIPLES OF OPERATION113Printer Mechanism Operation116Printhead Mechanism116Carriage Mechanism118Platen Gap Adjustment119Paper Handling Mechanisms120Ribbon Advance Mechanism133Power Supply Operation134Power Supply Overview134Power Supply Circuit Operation134Control Circuit Operation137Control Circuit Operation Overview137Reset Circuit140Sensor Circuits141Carriage Motor Drive Circuit142Paper Feed Motor Drive Circuit143Printhead Drive Circuit144Parallel Interface Circuit144E2 PROM Control Circuit145Component Repair Information (for Dealers Outside the U.S.)146CHAP 7-REFERENCE MATERIALS153Connector Summary154Circuit Diagrams158Circuit Board Component Layouts163Outline Drawings166INDEX168Size: 3.35 MBPages: 181Language: EnglishOpen manual
