Document Outline

• FRONT MATTER
• CONTENTS
• CHAP 1-PRINTER FEATURES
  • Options
  • Hardware Specifications
    • Printing Method
    • Paper Handling
    • Precautions for Handling Paper
    • Paper Specifications
    • Specifications for Cut Sheets (Standard Paper)
    • Printable Area
    • Ribbon Cartridges
    • Electrical Specifications
    • Environmental Conditions
    • Reliability
    • Safety Approvals
  • Firmware Specifications
    • Print Control
    • Input Data Buffer
  • Interfaces
    • Parallel Interface
    • Optional Interfaces
  • Control Panel
    • Buttons
    • Indicators
  • Default Settings
    • Power On Default Settings
  • Self-Test
  • Hexadecimal Dump
  • Paper-out Detection
  • Auto Tear-Off
  • Buffer Full Printing
  • Thermal Protection
  • High-Duty Printing
  • Sheet Loading and Sheet Ejection
  • Adjust Lever Operation
  • Printer Initialization
  • Buzzer
  • Main Components
    • C094 MAIN Board Assembly (Main Control Circuit Board)
    • C094 PNL Board Assembly (Control Panel Circuit Board)
    • C076 PSB Board Assembly (Power Supply Circuit Board)
    • Printer Mechanism
    • Housing Assembly
  • Commonly Asked Questions and Answers
• CHAP 2-INSTALLATION AND SETUP PROCEDURES
  • Site Requirements
  • Removing the Packing Materials
  • The Correct Power On Sequence
  • Running the Self-Test
  • Connecting Printer Cables
    • Parallel Cables
    • Serial Cables
  • Checking the Printer with the Computer
    • Parallel Connection to an MS-DOS Computer
    • Serial Connection to an MS-DOS Computer
  • Tips to Increase Printer Life
• CHAP 3-TROUBLESHOOTING
  • Test Points
  • Error Codes
  • Problem Isolation
    • Serial Communications Errors
  • Connector Locations
  • Sensor Locations
  • Hex Quick Reference Table for ESC/P Commands
  • Hex Quick Reference Table for IBM Commands
• CHAP 4-DISASSEMBLY AND ASSEMBLY
  • Precautions
  • Tools
  • Service Checks After Repair
  • Screw Specifications
  • Notes for Unit Removal and Installation
  • Items to Remove Before Disassembling the Printer
  • Removing the Panel Unit
  • Removing the Printhead
  • Removing the Upper Housing Assembly -_
  • Removing the Printer Mechanism
    • Removing the Platen Assembly
    • Removing the Rear Frame Assembly
    • Removing the CR Motor Assembly
    • Removing the PF Motor Assembly
    • Disassembling the PF Gear Train
    • Removing the Carriage Assembly
    • Removing the Ribbon Drive (RD) Assembly
    • Removing the Home Position (HP) Sensor
    • Removing the Platen Gap (PG) Sensor
    • Removing the Front and Rear Paper End (PE) Sensors
    • Removing the Release Sensor
    • Arranging the Cables
    • Disassembling the Tractor Unit
    • Removing the C094 MAIN Board Assembly
    • Removing the C076 PSB Board Assembly
• CHAP 5-ADJUSTMENTS, MAINTENANCE, AND LUBRICATION
  • Adjusting the Printer Mechanism
    • Platen Gap Adjustment
  • Bidirectional Alignment Adjustment
    • Overview of the Bidirectional Alignment Adjustment
    • Bidirectional Alignment Adjustment Procedure
  • Preventive Maintenance
  • Lubrication
• CHAP 6-PRINCIPLES OF OPERATION
  • Printer Mechanism Operation
    • Printhead Mechanism
    • Carriage Mechanism
    • Platen Gap Adjustment
    • Paper Handling Mechanisms
    • Ribbon Advance Mechanism
  • Power Supply Operation
    • Power Supply Overview
    • Power Supply Circuit Operation
  • Control Circuit Operation
    • Control Circuit Operation Overview
    • Reset Circuit
    • Sensor Circuits
    • Carriage Motor Drive Circuit
    • Paper Feed Motor Drive Circuit
    • Printhead Drive Circuit
    • Parallel Interface Circuit
    • E2 PROM Control Circuit
    • Component Repair Information (for Dealers Outside the U.S.)
• CHAP 7-REFERENCE MATERIALS
  • Connector Summary
  • Circuit Diagrams
  • Circuit Board Component Layouts
  • Outline Drawings
• INDEX