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Epson TM-L90 series - User Manual

Epson TM-L90 series
148 pages
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Confidential
Service manual
TM-L90 series
English
401392002
Rev.C
Issued date , ,
Issued by
EPSON

Table of Contents

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Epson TM-L90 series Specifications

General IconGeneral
BrandEpson
ModelTM-L90 series
CategoryPrinter
LanguageEnglish

Summary

Confidentiality Agreement and Cautions

Confidentiality Agreement

Terms governing the use and disclosure of confidential information.

Cautions

Important warnings and disclaimers regarding document use and potential errors.

For Safe Repair and Maintenance Work

Safety Precautions on Maintenance;Repair;Inspection

Critical safety guidelines for performing maintenance and repairs.

Chapter 2 Troubleshooting Guide

Diagnosing Failures

Methods to identify the source of printer failures using symptoms or error codes.

Troubleshooting Using the ERROR LED

Explains how to interpret error codes indicated by the ERROR LED.

Chapter 3 Disassembly and Assembly

Notes for Assembly and Disassembly

Important precautions to observe during disassembly and assembly.

Replacing the Thermal Print Head Assembly

Step-by-step instructions for replacing the thermal print head.

Main Circuit Board Unit Disassembly

Detailed procedure for removing and installing the main circuit board.

Autocutter Unit Disassembly

Procedures for removing and installing the autocutter unit.

Thermal Print Head Disassembly

Detailed instructions for removing and installing the thermal print head.

Chapter 4 Adjustment and Settings

Threshold Value Setting for Detectors

Setting the threshold values for detectors after component replacement.

Chapter 5 Maintenance, Inspection, Lubrication, and Cleaning

Cleaning the Thermal Head

Procedures for safely cleaning the thermal head.

Chapter 6 Installation

Installation Precautions

Critical safety and handling guidelines for printer installation.

Chapter 7 Handling

Safety Precautions

General safety warnings for operating and handling the printer.

Appendix B Overview of the Mechanisms

Appendix D Parts List

Appendix F Overview of Electric Circuits

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