EPSON TM-H6000, TM-H6000P Service Manual

Confidential

Service manual

TM-H6000/H6000P

Issued Date 199 , ,

Issued by

English

401040800

Confidential

TM-H6000/H6000P Service Manual

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Products by Seiko Epson Corporation.

®

EPSON

and ESC/POS® are registered trademarks of Seiko Epson Corporation

Rev. A i

Confidential

CONTENTS

For Safe Repair and Maintenance Work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v

Key to Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v

Safety Precautions on Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v

Safety Precaution on Maintenance/Repair/Inspection . . . . . . . . . . . . . . . . . . vi

Note on Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii

Modular Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii

About This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii

Aim of the Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii

Contents of the Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii

Chapter 1

Before Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

About this Chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Flowcharts for Diagnosing Failures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Printer Mechanism Power on Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Opening and Closing the Platen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Detecting the Head Carriage Home Position . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Starting and Stopping Self Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Starting the Self Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Self Test Wait Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Ending the Self Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Troubleshooting Using the ERROR LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

Test Points on the Printer Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9

Test Points on the Main Circuit Board Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11

Power Supply Line Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11

Locations of the Main Elements on the Main Circuit Board Unit . . . . . . . . . . . . . . 1-13

Procedures for Replacing the Print Head Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14

Checking for Paper Jams in the Autocutter Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18

Chapter 2

Before Assembly and Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

About this Chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Titles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Quick reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Assembling the Mechanism for the Slip Printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Pre-assembly Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Assembly of the Slip Printer Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

Assembling the Thermal Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-24

Pre-assembly Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-24

Assembly of the Thermal Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-26

Assembling the TM-H6000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-30

Pre-assembly Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-30

Troubleshooting

Assembly and Disassembly

Chapter 3

Before Making Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

The Purpose of Adjusting and Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Adjusting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Phase Adjusting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Adjusting the Platen Gap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

Threshold Value Setting for Detectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11

Adjusting and Setting

ii Rev. A

Confidential

TM-H6000/H6000P Service Manual

Appendix A

Appendix B

Maintenance and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

Daily Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

Periodic Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2

Thermal head Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3

Appendix C

Connecting to the Host PC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1

Connecting the Drawer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-2

Connecting to a Direct Connection Display Module . . . . . . . . . . . . . . . . . . . . . . . . C-3

Power Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3

Appendix D

Component Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-1

Outline of Printer Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-2

Impact Dot Matrix Printer Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-2

Thermal Printer Mechanisms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-19

Outline of Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-41

Connection of Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-41

Circuit Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-42

Memory Circuit Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-43

Main Circuit Board Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-44

CPU and Peripheral Logic Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-46

Slip Mechanism Drive Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-56

Thermal Mechanism Drive Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-63

Input Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-66

Control Panel Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-69

Malfunction Protective Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-70

Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-71

Important Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-71

DIP Switch Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-73

Serial Interface Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-73

Parallel Interface Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-75

Self Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-77

Outline of Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-78

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-78

Slip Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-79

Receipt Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-81

Overall Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-84

Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-85

Service Tools and Lubricants

Maintenance

Installation

Product Overview

Appendix E

Alphanumeric List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-1

Reference Number List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-8

Appendix F

TM-H6000/H6000P . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F-1

Mechanism Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F-2

Frame Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F-3

Parts List

Exploded Diagrams

Rev. A iii

Confidential

Carriage Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F-4

PF Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F-5

Thermal Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F-6

Appendix G

TM-H6000/H6000P . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-1

Mechanism Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-2

Frame Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-3

Carriage Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-4

PF Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-5

Thermal Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-6

Appendix H

Main circuit board assembly (outline) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . H-1

Main circuit board assembly (1 of 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . H-2

Main circuit board assembly (2 of 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . H-3

Main circuit board assembly (3 of 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . H-4

Main circuit board assembly (4 of 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . H-5

Main circuit board assembly (Thermal block) . . . . . . . . . . . . . . . . . . . . . . . . . H-6

Main circuit board assembly (Memory block) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . H-7

RS-232 I/F Circuit Board Assembly (UB-S01) Circuit Diagram . . . . . . . . . . . . . . . H-8

Parallel I/F Circuit Board Assembly (UB-P02) Circuit Diagram . . . . . . . . . . . . . . H-9

RS-485 I/F Circuit Board Assembly (UB-S02) Circuit Diagram . . . . . . . . . . . . . . . H-10

Appendix I

Using the Power Switch Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-1

Opening the Front Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-2

Installing or Replacing the Paper Roll . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-2

Installing the Ribbon Cassette . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-4

Inserting Slip Paper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-7

Adjusting the Roll Paper Near End Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-7

Using the Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-8

LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-9

Control Panel Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-9

General Lubrication Points Diagrams

Circuit Board Unit Circuit Diagrams

Printer Handling

Appendix J

Appendix K

Main Circuit Board Unit (parts side) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . K-1

Main Circuit Board Unit (solder side) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . K-2

RS-232 I/F Circuit Board Assembly (UB-S01) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . K-3

Parallel I/F Circuit Board Assembly (UB-P02) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . K-3

RS-485 I/F Circuit Board Assembly (UB-S02) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . K-3

Screw Types

Parts Layout

iv Rev. A

Confidential

TM-H6000/H6000P Service Manual

For Safe Repair and Maintenance Work

Key to Symbols

The symbols in this manual are identified by their level of importance, as defined below. Read
the following carefully before handling the product.

WARNING:

You must follow warnings carefully to avoid serious bodily injury.

CAUTION:

Observe cautions to avoid minor injury to your self, damage to your equipment, or loss
of data.

Note:

Notes have important information and useful tips on the operation of your equipment.

Safety Precautions on Handling

This section presents important information intended to ensure safe and effective use of this
product. Please read this section carefully and store it in an accessible location.

WARNING:

Shut down your equipment immediately if it produces smoke, a strange odor, or unusual
noise. Continued use may lead to fire or electric shock. Immediately unplug the
equipment.

Only disassemble this product as described in this manual. Do not make modified to the
unit. Tampering with this product may result in injury, fire, or electric shock.

Be sure to use the specified power source. Connection to an improper power source
may cause fire or shock.

Never insert or disconnect the power plug with wet hands. Doing so may result in severe
shock.

Do not allow foreign matter to fall into the equipment. Penetration of foreign objects
may lead to fire or shock.

If water or other liquid spills into this equipment, unplug the power cord immediately.
Continued usage may lead to fire or shock.

Do not place multiple loads on the power outlet (wall outlet). Overloading the outlet
may lead to fire.

Rev. A v

Confidential

Always supply power directly from a standard domestic power outlet.

Handle the power cord with care. Improper handling may lead to fire or shock.

Do not modify or attempt to repair the cord.

Do not place any object on top of the cord.

Avoid excessive bending, twisting, and pulling.

Do not place cord near heating equipment.

Check that the plug is clean before plugging it in.

Be sure to push the prongs all the way in.

CAUTION:

Do not connect cables in ways other than those mentioned in this manual.
Different connections may cause equipment damage and burning.

Be sure to set this equipment on a firm, stable, horizontal surface. Product may break or
cause injury if it falls.

Do not use in locations subject to high humidity or dust levels. Excessive humidity and
dust may cause equipment damage, fire, or shock.

Do not place heavy objects on top of this product. Never stand or lean on this product.
Equipment may fall or collapse, causing breakage and possible injury.

To ensure safety, please unplug this product prior to leaving it unused for an extended
period.

Do not touch the thermal head or paper feed motor. Wait for the head and the motor
to cool. The head and the motor can be very hot after printing for a long time. Touching
them may cause burns.

Safety Precaution on Maintenance/Repair/Inspection

WARNING:

Be sure to use the designated type of fuse for the circuit board. Use of a different type
may result in fire.

Remove the power cord and all other cables from this product before disassembly or
reassembly to prevent electrical shock.

To prevent the possibility of electrical shock, do not perform maintenance, repair, or
inspection during a thunder storm.

vi Rev. A

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TM-H6000/H6000P Service Manual

CAUTION:

Wear a grounded wrist band when handling the internal circuit board to prevent
damage from static electricity.

When removing the internal circuit board, place it on an anti-static rubber sheet or
similar surface to prevent damage from static electricity.

Parts on the circuit board may become hot during operation. Therefore, wait
approximately 10 minutes after turning the power off before touching them.

Be careful not to subject the circuit board to shock or vibration, because this may
damage it.

Do not touch the circuit board or cable terminals with your hands to prevent
contamination that may result in a malfunction.

Do not use an alcohol, benzine, thinner, trichloroethylene, or ketone based solvent to
clean the parts. This type of solvent may damage the plastic and rubber parts.

Wipe off any dirt with a dry or slightly moist cloth. Be sure to remove the power cord
from the outlet at this time.

Note on Disposal

Note:

Make sure to follow current laws or regulations when disposing the product.

Modular Connector

The following label is visible near the modular connector (drawer kick-out connector) on the
back of this product.

Use modular connector specifically designed for cash drawers for this product. Do not connect
this connector to an ordinary telephone line.

Rev. A vii

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About This Manual

Aim of the Manual

This manual was created to provide the information on printer maintenance and repair required
by technicians who handle this work.

Contents of the Manual

The configuration of the manual is as follows.

Chapter 1 Troubleshooting

Chapter 2 Disassembly/Reassembly

Chapter 3 Adjustments

Appendix A Required Tools

Appendix B Maintenance

Appendix C Installation/Removal

Appendix D Product Outline

Appendix E Parts List

Appendix F Overall Exploded Diagram

Appendix G General Lubrication
Points Diagram

Describes troubleshooting procedures (specific
problems and remedies)

Describes product disassembly and reassembly
procedures

Describes product adjustment procedures

Describes tools required to perform
maintenance and repair

Describes required procedures to perform
repair, maintenance, and inspection

Describes installation and removal procedures

Provides reference information for maintenance
and inspection

Contains a list of product parts

Disassembly diagram for the product

Lubrication point diagrams for this product

Appendix H Circuit Diagram

Appendix I Printer Handling

Appendix J Screw types

Appendix K Parts layout

viii Rev. A

Circuit diagram for the product

Describes required handling procedures when
performing maintenance and repair

Describes screw types

Describes parts layout

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TM-H6000/H6000P Service Manual

Chapter 1

Troubleshooting

Before Servicing

"Precautions for Safety" (pages v to viii) at the beginning of this manual provides precautions
you should observe to perform work safety and the necessary information to service this
product safety. Always read that information before starting your work.

About this Chapter

This chapter is organized in the following parts. For troubleshooting, you may only need to
follow "Flowcharts for Diagnosing Failures".

❏ Flowcharts for diagnosing failures
❏ Printer mechanism power on tests
❏ Starting and stopping self tests
❏ Troubleshooting using the ERROR LED
❏ Test points on the printer mechanism.
❏ Test points on the main circuit board unit
❏ Locations of the main elements on the main circuit board unit
❏ Procedures for replacing the print head unit
❏ Checking for paper jams in the autocutter unit

The names and page numbers of other items of reference are shown in the flowcharts for
diagnosing failures, if you need to refer to them.

Rev. A Troubleshooting 1-1

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Flowcharts for Diagnosing Failures

Find the problem by following the flowchart.

START

Does the

problem happen when the

Yes

printer is connected to the

host computer?

Does the

Replace the I/F cable

(For serial in terface, be

sure you use a null

modem cable.)

Problem fixed?

No

Replace the I/F board

(see pag e 2-38)

Problem fixed?

Yes

END

Yes

No

sub-routin e

END

Go to

printer complete its power

on test?

(see pag e 1-4)

Run the self test
(see pag e 1-6)

Does the printer

execute the self test?

No

No

Yes

Check the power supply

Replace if ne cessary.

Problem fixed?

No

No

Go to

sub-routin e

Yes

END

Yes

No

Yes

ERROR LED

flashing ?

Go to "Troubleshooting

using the ERROR LED"

(see pag e 1-7)

No

Clean the print head

Print quality p roblem

Problem on

receipt?

Yes

(see page B-3)

Problem fixed?

No

Replace the ribbon

cassette

(see page I-4)

Problem fixed?

No

Dot missing

problem?

No

Go to

sub-routin e

Paper feed problem or
drawer kick operation problem

Go to

sub-routin e

Yes

Yes

Yes

Replace the print head

(Receipt : see page 2-27)

(Slip: see p age 1-14)

No

Problem fixed?

END

END

Remove the jammed paper

(if you need to disassemble the

autocut ter unit, see page 2-27

Yes

Yes

and 2-24)

Problem fixed?

Yes

END

Figure 1-1 Flowchart (main routine)

Autocutter problem

Check paper jam

(see pag e 1-18)

Jammed paper

exists?

No

No

Go to

sub-routin e

Display mod ule problem

Replace the fuse F3

Yes

Power line mig ht be

shorted on the

display module side

END

Check fuse F3

(see pag e 1-13)

F3 was blown out?

Yes

Problem fixed?

No

Go to

sub-routin e

No

1-2 Troubleshooting Rev. A

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The following is an illustration of the sub-routine flowchart.

Sub-routine

Check motors and coils.

See "Te st Points of t he Printer M echanism"
(page 1-9) for the appropriate resistance

Replace the defective part if necessary.

If all mot ors and coils ar e OK, go on to the

Yes No

values.

next step.

Proble m fixed?

TM-H6000/H6000P Service Manual

Replace the main circuit board

(see pag e 2-30)

END

Replace the slip printer

mechanism

(see pag e 2-30)

No

No

Problem on receipt?

Yes

Replace the thermal

printer mechanism

(see pag e 2-32)

Proble m fixed?

Do you need further

analysis?

Put the main circuit

back in to the printer

Check the power supply

lines on the main circuit

(see pag e 1-11)

Figure 1-2 Flowchart (sub-routine)

Yes

Yes

board

board

No

END

Rev. A Troubleshooting 1-3

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Printer Mechanism Power on Test

The printer mechanism runs through the following tests when you turn on the power supply to
the printer.

❏ Opens and closes the platen.
❏ Detects carriage home position.
❏ Feeds paper to the thermal printer.

This section describes the items that you can check visually.

Opening and Closing the Platen

The printer opens and closes the platen once. Check this operation with the front cover opened.

check for the platen open and
close operation

Figure 1-3 Opening and closing the platen

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TM-H6000/H6000P Service Manual

Detecting the Head Carriage Home Position

The head carriage on a dot impact printer moves to the left side (home position) once and then
to the right side before stopping. Check this operation with the front cover opened.

check for head carriage
movement

Figure 1-4 Detecting the head carriage home position

Feeding Thermal Printer Paper

Roll paper is fed 1 to 2 mm (0.04 to 0.08″).

Figure 1-5 Feeding thermal printer paper

check for paper feed

Rev. A Troubleshooting 1-5

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Starting and Stopping Self Tests

Starting the Self Test

❏ Roll paper self test:

The printer starts printing to the roll paper when you turn on the power while holding down
the receipt

❏ Slip paper self test:

The SLIP LED flashes and the printer enters the slip paper wait mode when you turn on the
power while holding down the
starts on the slip paper when you insert a slip of paper in the printer.

Self Test Wait Mode

❏ Roll paper self test:

When the test print is completed, the printer enters the self test wait mode and the PAPER
OUT LED flashes after printing "SELF-TEST printing, Please press PAPER FEED button."
Test printing starts when you press the receipt paper

FEED

button when all the covers are closed.

RELEASE

button when all the covers are closed. Printing

FEED

button.

❏ Slip paper self test:

When the printer status print is completed, the printer ejects the slip and waits for the next
slip of paper. Test printing starts when you insert a slip of paper in the printer.

Ending the Self Test

The printer prints "***completed***" and the test ends when the determined number of lines
have been printed. The printer enters the normal mode after the power on tests are
completed.

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TM-H6000/H6000P Service Manual

Troubleshooting Using the ERROR LED

You can learn the cause of a failure by the pattern of ERROR LED flashes. The following table
shows problems and solutions to repair the printer. Numbers in the "Solutions" column indicate
the order to use to check the problem. If you cannot determine the cause of the problem after
checking all the solutions listed, go back to the flowchart given earlier in this chapter.

Table1-1 Error causes and solutions

Solutions

Type of Error and ERROR LED Pattern Explanation

Autocutter error Autocutter error has

LED ON

320ms

5120ms

Carriage home position detection
error

been detected.

The head carriage
home position was
not correctly
detected.

(Listed in order you should use to check printer.)

1. Check the autocutter for paper jams.
(See page 1-18.)

2. Check the paper cutter motor sub assembly (See
page 1-9.) If the motor is shorted, replace it along
with the main board.

3. Try installing a new main circuit board unit to see if
the printer is fixed. (See page 2-30.)
If the printer works now, refer to the section "Test
Points on the Main Circuit Board Unit" (page 1-11) to
analyze the area where the failure occurred.

1. Check the carriage assembly for paper jams.
(See page 1-14.)

2. Check for paper dust on the H.P. detector
assembly. (See page 1-14.)

Carriage out-of-step error There is no carriage

detector output
even when the
carriage is
instructed to move.

Slip eject error The slip paper was

not ejected
normally.

3. Replace the sensor.

1. Check the carriage assembly for paper jams.
(See page 1-14.)

2. Check the rotary encoder on the carriage motor
gear used to detect carriage position.

3. Check the carriage motor. (See page 1-9.)
If the motor is shorted, replace it along with the main
board.

4. Try installing a new main circuit board unit to see if
the printer is repaired. (See page 2-30.)
If the printer works now, refer to the section "Test
Points on the Main Circuit Board Unit" (page 1-11.) to
analyze the area where the failure occurred.

1. Look into the printer from the left side to check for
a paper jam in the slip paper transport path.

2. Check the paper feed motor. (See page 1-9.)
If the motor is shorted, replace it along with the main
board.

3. Try installing a new main circuit board unit to see if
the printer is fixed. (See page 2-30.)
If the printer works now, refer to the section "Test
Points on the Main Circuit Board Unit" (page 1-11) to
analyze the area where the failure occurred.

Rev. A Troubleshooting 1-7

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Table1-1 Error causes and solutions

Type of Error and ERROR LED Pattern Explanation

Cover open error The roll paper cover

or the unit cover
was detected
open when
printing.

Memory or gate array R/W error The R/W check did

not operate
properly for the
memory or the
gate array.

High voltage error The power supply

voltage is high.

Solutions
(Listed in order you should use to check printer.)

Close the roll paper cover or the unit cover.

Replace the main circuit board unit to see if the
printer is repaired. (See page 2-30.)

Replace the power supply unit to see if the printer is
repaired. (See page C-3.)

Low voltage error The power supply

CPU execution error An abnormal CPU

Drive circuit error One of the

voltage is low

operation was
detected, or the I/F
board is
disconnected.

following was
detection.

Print head

❏

thermistor
detection error

"Lever drive

❏

motor assembly"
error

Replace the power supply unit to see if the printer is
repaired. (See page C-3.)

1. Check whether the I/F board is connected.

2. Replace the main circuit board unit to see if the
printer is repaired. (See page 2-30.)

1. Check if the printer is restored after replacing the
“print head unit” (impact head). (See page 1-14)

2. Check if the printer is restored after replacing the
“thermal head FFC.”

3. Check if the printer is restored after replacing the
“thermal print head set.” (See page 2-28)

4. Check if there is conductivity in the “lever drive
motor assembly.” (See page 1-10) Replace if there
is no conductivity.

5. Check if the printer is restored after replacing the
“lever motor T. P. detector assembly.” (See page 2-

19)

6. Check if the printer is restored after replacing the
main circuit board unit. (See page 2-31)

Head high temperature error The thermal or

impact head
temperature is high.

This error may occur if you print with high duty. Let
the printer rest. The error may clear automatically
when the temperature drops. If this error occurs
frequently, check that the usage environment is
within specifications.

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TM-H6000/H6000P Service Manual

Test Points on the Printer Mechanism

Before you try to repair a printer failure by replacing the main circuit board unit, check the
printer mechanism. This section shows how to test the motor and the coils. If the motor is
shorted, replace the main board when you replace the motor.

Table1-2 Test points on the printer mechanism

Name of
Mechanism Part Name Internal Element Function Where to Check Normal Status

Thermal
mechanism
assembly
(M-H6000)

Paper cutter
motor sub
assembly

Receipt paper
feed motor

DC brush motor Autocutter drive Remove the cable

4 phase stepping
motor

Receipt paper
feed

connector
connected to
CN23 on the main
circuit board unit
and test between
pin 1 and pin 2.

Remove the cable
connector
connected to
CN23 on the main
circuit board unit
and test between
pin 5 and pin 6
and between
pin 7 and pin 8.

The line must be
continued.

Approx. 11.5 Ω
(per 1 phase)

Rev. A Troubleshooting 1-9

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Table1-2 Test points on the printer mechanism

Name of
Mechanism Part Name Internal Element Function Where to Check Normal Status

Mechanism
assembly
(M-U675)

Lever drive coil
A (left side
when facing
the front of the
printer.)

Lever drive coil
B (right side
when facing
the front of the
printer.)

Carriage motor 4 phase stepping

Lever drive
motor assembly

Paper feed
motor

Coil

Coil

motor

DC brush motor

4 phase stepping
motor

Form stopper

•

operation

Slip paper roller

•

(sub) operation

Platen open

•

and close.

Cylindrical

•

printer platen
open and close

Head carriage
drive

Form stopper

•

operation

Slip paper roller

•

(sub) operation

Platen open

•

and close

Endorsement

•

printer platen
open and close

Slip paper feed Remove the cable

Remove the cable
connector
connected to
CN30 on the main
circuit board unit
and test between
pin 26 and pin 27.

Remove the cable
connector
connected to
CN30 on the main
circuit board unit
and test between
pin 26 and pin 28.

Remove the cable
connector
connected to
CN30 on the main
circuit board unit
and test between
pin 1 and pin 2
and between
pin 3 and pin 4.

Remove the cable
connector
connected to
CN30 on the main
circuit board unit
and test between
pin 29 and pin 30.

connector
connected to
CN30 on the main
circuit board unit
and test between
pin 17 and pin 18
and between
pin 19 and pin 20.

Approx. 70

Approx. 70

Approx. 4.5 Ω (per
1 phase)

The line must be
continued.

Approx. 8 Ω (per 1
phase)

Ω

Ω

1-10 Troubleshooting Rev. A

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TM-H6000/H6000P Service Manual

Test Points on the Main Circuit Board Unit

Power Supply Line Check

After a main board feilure, one basic method for diagnosing the cause of the failures on the main
circuit board unit is to check the power supply line. Use the following table to check the power
supply line. First, check step number 1, and proceed to the next step if that is not the problem.

Table1-3 Checking the power supply line

Step
# Type of Voltage

1 Voltage input

from the power
supply

2 Voltage input

from the power
supply

Location of
Measurement

CN29, pin 1 Output when

U11, pin 1

Condition of
Measurement

the power
supply is ON.

Output when
the power
supply is ON.

Normal
Value Presumed Cause of the Error

24 V ± 10

24 V ± 10

%

It is possible that the problem is pre­arcing of the F1 fuse. The fuse may
have pre-arced because of an unsafe
input circuit.

Always replace the fuse after
removing the cause of the pre-arcing.
If you do not remove the cause of the
pre-arcing, and replace this fuse, the
problem may beyond to
misoperation. Also, always use the
specified type of fuse when replacing.

%

It is possible that the problem is pre­arcing of the R3 fuse. The fuse may
have pre-arced because of a
problem in the logic power supply
circuit or because of a VCC over­voltage.

3 Logic voltage

(VCC)

4 Logic voltage

(VCC-PWR)

5 Logic voltage

(VCC-PWR2)

VCC Land
(near L2)

VCC-PWR Land
(near U14,
pin 40)

U19, pin 8
potential

Output when
the power
supply is ON.

Output when
Q51 (C) is "0."
(24V SW1="H")

Output when
Q60 (C) is "0."
(24V SW2="H")

5 V ± 5

5 V ± 5

5 V ± 5

If pre-arcing of the R3 fuse happens,
do not repair the main circuit board
unit. The quality of several parts on the
circuit board is weakened by pre­arcing of the R3 fuse and safe
operation cannot be guaranteed.

%

It is possible that the logic power
supply circuit has malfunctioned.

If you find this line has a problem, do
not repair the main circuit board unit.
The quality of several parts on the
circuit board is weakened, and safe
operation cannot be guaranteed.

The logic power supply circuit or Q44

%

could have malfunctioned.

The logic power supply circuit or Q59

%

could have malfunctioned.

Rev. A Troubleshooting 1-11

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Table1-3 Checking the power supply line

Step
# Type of Voltage

6 Logic voltage

(VCC_SEN)

7 Mechanism

voltage
(24VA)

8 Mechanism

voltage
(24 VB)

9 Mechanism

voltage
(24C)

Location of
Measurement

CN30, pin 5
potential

Located near
Q17 drain

Located near
Q7 drain

Located near
Q29 base

Condition of
Measurement

Output only
when there is
output sensor
conductivity
when CPU
output port
(SEN_PWR) is "L."

Output when
Q24 (C) is "0."
(24V SW2 = "H")

Only output
continuously
when power
supply unit is
connected.

Output when
Q46 (C) is "0."
(24V SW1="H")

Normal
Value Presumed Cause of the Error

5 V ± 5

24 V ± 10 %Q17 could have malfunctioned.

24 V ± 10 %TH1 could have malfunctioned.

24 V ± 10

The logic power supply circuit or Q44

%

could have malfunctioned.

%

It is possible that the problem is pre­arcing of the F2 fuse. The fuse may
have pre-arced because of a defect
in the 24V line circuit elements.

If pre-arcing of the F2 fuse happens,
do not repair the main circuit board
unit. The quality of several parts on the
circuit board is weakened by pre­arcing of the F2 fuse, and safe
operation cannot be guaranteed.

Note: E/P = Endorsement printer

1-12 Troubleshooting Rev. A

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TM-H6000/H6000P Service Manual

Locations of the Main Elements on the Main Circuit Board Unit

The following shows the locations of the main elements on the main circuit board unit.

Fuse (F3)

Fuse (F1)

CPU (U3)

Gate array (U30)
*under the
memory board

Thermal paper feed
motor controller (U19)

Carriage motor
controller (U14)

Autocutter motor
driver (Q5)

Slip paper feed motor
controller (U17)

Fuse (F2)

Memory board

Font ROM (U513)
Program ROM (U508)
SRAM (U509)

Figure 1-6 Locations of the main elements on the main circuit board unit

Impact dot head
drivers (QM3)

Impact dot head
drivers (QM6)

*Rear side

Fuse (F4)
Fuse (R3)

Rev. A Troubleshooting 1-13

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Procedures for Replacing the Print Head Unit

This section explains how to replace the dot impact print head. See page 2-27 for information on
replacing the thermal print head.

1. Turn off the power switch to the printer. Remove the power supply unit from the printer.

2. Open the printer front cover and remove the ribbon cartridge.

Figure 1-7 Removing the ribbon cartridge

3. Pull the cable connector out of the slit on the case.

Figure 1-8 Pulling the cable connector out

When you are reattaching the cable, arrange the cable wires as shown below.

Figure 1-9 Arranging the cable wires

1-14 Troubleshooting Rev. A

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4. Remove the two screws and remove the carriage cover frame assembly.

Figure 1-10 Removing the carriage cover frame assembly

When you are reattaching the frame, insert the tooth on the left side into the shaft and align
the nib on the right side with the nib hole.

TM-H6000/H6000P Service Manual

nib

tooth

Figure 1-11 Tooth and nib

Rev. A Troubleshooting 1-15

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5. Remove the one screw and remove the print head unit.

Figure 1-12 Removing the print head unit

When you are attaching, insert the print head unit ribbon cable (FPC) below the three tabs.

Figure 1-13 Three tabs

6. Remove the print head unit FPC from the printer.

Figure 1-14 Removing the FPC

tabs

1-16 Troubleshooting Rev. A

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7. Remove the nose guide from the print head unit.

nose guide

Figure 1-15 Removing the nose guide

8. To reinstall the print head, reverse the procedures you used to remove it.

TM-H6000/H6000P Service Manual

Rev. A Troubleshooting 1-17

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Checking for Paper Jams in the Autocutter Unit

The following explains the procedures for checking for paper jams in the autocutter unit.

1. Open the roll paper cover.

Figure 1-16 Opening the roll paper cover

If you cannot open the roll paper cover, open the unit cover. Rotate the cutter blade knob in
the direction of the arrow in the illustration below to move the cutter blade.

unit cover

cutter blade
knob

Figure 1-17 Operating the cutter blade knob

1-18 Troubleshooting Rev. A

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2. Check that there is no paper jam in the areas shown in the illustration below.

check for paper jam

Figure 1-18 Checking for paper jams

TM-H6000/H6000P Service Manual

Rev. A Troubleshooting 1-19

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1-20 Troubleshooting Rev. A

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TM-H6000/H6000P Service Manual

Chapter 2

Assembly and Disassembly

Before Assembly and Disassembly

Always observe the following precautions when you are disassembling, assembling, or
adjusting the printer.

Caution:

❏ Always remove the power supply unit from the printer before working.

Power is flowing in the internal circuit board even if you turn the printer off with the power
supply switch. You can damage the printer if you work with the power supply still
attached.

❏ Remove all peripheral equipment connected to the printer before starting your work.
❏ Do not perform any work that is not described in this chapter. Doing so can result in injuries

or damage to the printer.

❏ Do not touch the FPC or the FFC pins with your hands.

About this Chapter

Titles

This chapter uses titles for important parts and blocks (units), not for all parts (service parts).

Procedures

This chapter provides the procedures for assembling. Reverse them to disassemble the printer.

Assembly is organized into "Assembling the Mechanism," "Assembling the Thermal
Mechanism," and "Assembling the TM-H6000." Each section is further divided into "Pre­assembly" and "Assembly."

Do "Pre-assembly" steps first, and then do "Assembly" after you have assembled the parts into
units to some degree.

Refer to the "General Disassembly Drawings" during assembly to check the shapes and
attachment positions of the parts while you are working. Refer to the "General Lubrication
Drawings" when you are lubricating.

Rev. A Disassembly and Assembly 2-1

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Quick reference

This Quick Reference directs you to key areas of this chapter. For a complete listing of topics, see
the Contents at the front of this manual.

Assembling the Mechanismfor the SlipPrinter
Pre-assembly Procedures

Assembly of the Slip Printer Mechanism

Assembling the Thermal Mechanism
Pre-assembly Procedures

Assembly of the Thermal Mechanism

Assembling the TM-H6000
Pre-assembly Procedures

Assembly of the TM-H6000

page 2-3

page 2-13

page 2-24

page 2-26

page 2-30

page 2-30

Disassembly and Assembly 2-2 Rev. A

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Assembling the Mechanism for the Slip Printer

Pre-assembly Procedures

Pre-assembly of the slip BOF Detector Assembly

1. Solder lead wires C, D, E to the slip B. O. F. detector assembly.

Note:

Check that the soldering is secure.

2. Insert the slip B. O. F. detector into the slip insertion detector holder.

605Slip insertion detector holder

TM-H6000/H6000P Service Manual

668
Slip B.O.F. detector
assembly

Figure 2-1

707 Lead wire (type C)
708 Lead wire (type D)
709 Lead wire (type E)

Pre-assembly of the Lever Drive Coil Assembly

1. Attach coil lever drive A, B to the paper feed steel core. The rack for coil lever drive A and B
should face upward. Check the direction for attachment.

2. Fasten the paper feed trigger suction plate to the coil lever drive. Check the direction for
attachment.

3. Hook the paper feed trigger claw spring 3 onto the paper feed steel core and paper feed
trigger suction plate. One side of the paper feed trigger claw spring 3 is single and the other
side is double. Attach the double side onto the paper feed trigger suction plate.

4. Lubricate the area contacting the trigger suction plate coil lever and the area contacting the
paper feed steel core (Eight places). See Appendix G for a lubrication diagram.

696 Paper feed trigger attraction plate

620 Lever drive coil (type A)

621 Lever drive coil (type B)

695

Paper feed

trigger claw spring

608

Figure 2-2

667
Lever coil mounting plate
sub assembly

Rev. A Disassembly and Assembly 2-3

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Pre-assembly of the Slip T. O. F Detector Assembly

1. Solder lead wires I, J, K to the slip T. O. F detector assembly.

Note:

Check that the soldering is secure.

671 Slip T.O.F. detector assembly

713 Lead wire (type I)
714 Lead wire (type J)
715 Lead wire (type K)

Figure 2-3

Pre-assembly of the Lever motor T. P. Detector Assembly

1. Solder lead wires F, G, H to the lever motor timing pulse (T. P.) detector assembly.

Note:

Check that the soldering is secure.

672 Lever motor T.P.
detector assembly

710 Lead wire (type F)
711 Lead wire (type G)
712 Lead wire (type H)

Figure 2-4

Pre-assembly of the Carriage Frame Unit

1. Lubricate in five places. See Appendix G for 2 lubrication diagram.

2. Insert the ribbon feed spring into the ribbon take-up gear shaft. Position the ribbon feed
spring tooth so that it is facing upward, and insert the ribbon feed spring all the way by
rotating it to the right.

3. Lubricate the ribbon feed spring surface. See Appendix G for a lubrication diagram.

4. Fasten the ribbon take-up gear assembly to the carriage frame assembly. Position and insert
the ribbon feed spring tooth and the ribbon take-up gear assembly notch.

5. Attach the carriage transmission pulley to the carriage transmission pulley shaft.

6. Lubricate in one place. See Appendix G for a lubricationdiagram.

7. Attach the belt drive cap. Insert the belt drive cap surface so that it is facing upward to
install it.

8. Insert the carriage drive transmission gear onto the transmission gear shaft.

Disassembly and Assembly 2-4 Rev. A

Confidential

TM-H6000/H6000P Service Manual

9. Attach the gear train cover to the carriage drive transmission gear.

10. Insert the ribbon reduction gear onto the ribbon reduction gear shaft.

11. Insert the ribbon intermediate gear onto the ribbon intermediate gear shaft. Insert
downward starting from the ribbon intermediate gear with the smaller diameter.

12. Attach the ribbon drive plate assembly to the top of the ribbon reduction gear and ribbon
intermediate gear. The gears of the ribbon drive plate assembly should face downward.

13. Fasten the belt drive cap, carriage drive transmission gear, and the ribbon drive assembly.
(See the illustration on the next page.) (three E-rings)

725
Gear train cover

632
Carriage drive
transmission gear

657

656

680
Ribbon take-up gear assembly

Ribbon reduction gear

Ribbon intermediate gear

Figure 2-5

601 Ribbon feed spring assembly

602
Belt drive cap

630
Carriage
transmission pulley

Rev. A Disassembly and Assembly 2-5

Confidential

674 Ribbon drive plate assembly

685 E-ring(2)

685 E-ring(2)

Figure 2-6

Pre-assembly of the Carriage Motor

1. Lubricate the carriage drive pulley shaft. See Appendix G for a lubrication diagram.

2. Attach the carriage drive pulley to the carriage drive pulley shaft.

3. Lubricate the inside of the carriage drive pulley. See Appendix G for a lubrication diagram.

4. Attach the belt drive cap to the carriage drive pulley using one E-ring. Insert the flat surface
of the belt drive cap face up to install it.

5. Fix the carriage motor to the carriage sub assembly nib frame assembly with one screw.
Tighten the lead wire side screw.

6. Loosen the carriage motor stopper screw. (Rotate a maximum of one turn.)

Disassembly and Assembly 2-6 Rev. A

Confidential

TM-H6000/H6000P Service Manual

7. Hook the belt tension spring to the carriage motor and carriage sub assembly frame.

685

E-ring(2)

Belt drive cap

Carriage drive pulley

697

Carriage motor

731
screw(C.P.S-tite(P4),3X6)

602

631

731 screw(C.P.S-tite(P4),3X6)

628 Belt tension spring

Figure 2-7

Pre-assembly of the Carriage Sub Assembly

1. Insert the oil-ring into the carriage head and lubricate. Insert the flat surface of the oil-ring
downward.

2. Hook the carriage spring to the carriage head. Push in until you feel the carriage spring
click.

3. Insert the carriage belt into the carriage sub assembly. Shape the belt along the groove on
the back side of the carriage sub assembly. The direction of the belt should be so that the
front side is facing the inside of the belt.

4. Pass the carriage guide gear into the carriage assembly and attach to the carriage sub
assembly with one E-ring. The groove in the carriage guide shaft E-ring should be toward
the right side. See the illustration on the next page.

5. Lubricate the left and right sides of the carriage guide shaft. See Appendix G for a
lubrication diagram.

6. Attach the carriage belt to the carriage transmission pulley and carriage drive pulley.

Rev. A Disassembly and Assembly 2-7

Confidential

7. Firmly tighten the carriage motor lead wire stopper screw.

8. Use one screw to attach the carriage to the carriage sub assembly.

604
Oil ring

604 Oil ring

677 Carriage assembly

610
Carriage spring

688 E-ring(5)

629 Carriage guide shaft

Figure 2-8

9. Set the intermediate circuit board cover onto the intermediate circuit board.

10. Position and attach the intermediate circuit board to two nibs on the carriage frame
assembly. Fix with two screws. (see the illustration on the next page.)

Disassembly and Assembly 2-8 Rev. A

Confidential

Intermediate circuit

726

board cover

TM-H6000/H6000P Service Manual

676
Intermediate circuit board
assembly

731 screw(C.P.S-tite(P4),3X6)

Figure 2-9

Pre-assembly of the H. P. Detector Assembly

1. Solder lead wires L, M, N in that order to the H. P. detector assembly.

Note:

Check that the soldering is secure.

2. Attach the H. P. detector assembly to the carriage sub assembly frame. Keep the H. P.
detector assembly lead wire from being pinched between the carriage sub assembly frame.

3. Install the slip print head unit (Eb) into the carriage assembly. Insert the flexible plastic
cable (FPC) into the intermediate circuit board connector and position with the two carriage
assembly pins to attach. At this time, insert the FPC so that it is below the rack.

4. Attach the nose guide to the carriage assembly. Align the three nibs on the carriage
assembly tip and insert.

5. Solder the four carriage motor cables and the three H. P. detector assembly cables to the
intermediate circuit board assembly.

Rev. A Disassembly and Assembly 2-9

Confidential

Note:

Check that the soldering is secure.

6. Solder intermediate cables A, B, C to the intermediate circuit board.

Note:

Check that the soldering is secure.

7. Bundle the intermediate cables (types A, B and C) and pass them through the intermediate
cable tube.

Disassembly and Assembly 2-10 Rev. A

Confidential

8. Turn intermediate cables A, B, C to the right side.

TM-H6000/H6000P Service Manual

screw(C.P.S-tite(P4),3X6)

731

675

H.P. detector

assembly

716 Lead wire (type L)
717 Lead wire (type M)
718 Lead wire (type N)

screw(C.P.P-tite,3X12)

607

622

Nose guide

662

Print head unit

(Eb)

698

698 Intermediate cable (type A)
699 Intermediate cable (type B)
700 Intermediate cable (type C)

Figure 2-10

728
Intermediate
cable tube

699

700

Rev. A Disassembly and Assembly 2-11

Confidential

Pre-assembly of the Front Cover Detector Assembly

1. Solder lead wires V, U, W in that order to the front cover detector assembly.

Note:

Check that the soldering is secure.

664
Front cover detector
assembly

721 Lead wire (type W)
720 Lead wire (type V)
719 Lead wire (type U)

Figure 2-11

Pre-assembly of the Paper Ejection Detector Assembly

1. Solder paper ejection detector cable assembly.

Note:

Check that the soldering is secure.

2. Assemble the paper ejection detector assembly and the paper ejection detector holder. Insert
into the paper ejection detector holder rack, and align with one nib. (Fix with one screw, as
shown below.)

3. Insert the paper ejection detector cable assembly cable into the carriage cover frame. Check
the starting position for inserting the cable.

Disassembly and Assembly 2-12 Rev. A

Confidential

TM-H6000/H6000P Service Manual

4. Attach the paper ejection detector assembly to the carriage cover assembly with one screw.

Paper ejection detector assembly

screw(C.B.P-tite,3X6)

Carriage cover frame

681

assembly

663

608

Figure 2-12

690
screw(C.C.S-tite,2.5X5)

633
Paper ejection detector
holder

Assembly of the Slip Printer Mechanism

1. Tighten two screws on the front of the main sub assembly frame.

2. Using two screws, attach the lever drive assembly motor to the main sub assembly motor.
Install so that the label side of the lever drive assembly motor is facing the back side.

3. Attach the sub slip feed shaft holder to the sub slip feed sub assembly lever frame with one
screw.

4. Attach the sub slip feed lever to the main sub assembly frame with one E-ring. Use the sub­spring feed lever shaft to fasten.

5. Install the form stopper into the main sub assembly frame and insert the form stopper shaft.
Attach with one E-ring. Insert the form stopper shaft from the outer side of the main frame.

6. Hook the form stopper spring to the main sub assembly and form stopper rack.

7. Hook the sub slip feed lever spring onto the sub slip feed lever assembly.

8. Attach the drive shaft assembly lever to the main sub assembly frame. Insert the D-cut side
of the drive shaft assembly lever to the left when pulling the shaft into the round hole in the
bottom center of the main sub assembly frame.

Rev. A Disassembly and Assembly 2-13

Confidential

9. Insert the crank shaft holder from the left and right outer sides attach with one E-ring.

619
Form stopper spring

screw(C.C.S-tite,2.5X5)

729
screw(C.B.,2.6X4)

618
Form stopper shaft

694
Crank shaft
holder

691 screw(C.B.S-tite F,3X6)

690

684
E-ring(1.5)

617
Form stopper

644
Sub slip feed roller holder

641
Sub slip feed lever spring

659
Lever drive motor assembly

705
Lead wire (type A)

706

Lead wire

(type B)

665
Lever drive shaft
assembly

691 screw(C.B.S-tite F,3X6)

636 Sub slip feed lever shaft

688 E-ring(5)

694 Crank shaft holder

Figure 2-13

10. Press the lever drive shaft gear into the drive gear assembly lever.

11. Install the sub slip feed assembly roller into the main sub assembly set frame. Align the D­cut side of the sub slip feed assembly roller with the left side of the frame and the the
opposite side of the shaft with the U groove.

12. Press in the slip drive gear onto the sub slip feed assembly roller. Press in starting from the
slip drive gear whose diameter is larger. (see the illustration on the next page.)

13. Snap fit the lever drive motor detector plate to the lever drive motor gear.

Disassembly and Assembly 2-14 Rev. A

Confidential

TM-H6000/H6000P Service Manual

14. Lubricate the lever motor reduction gear shaft.

15. Use one E-ring to attach the lever motor reduction gear to the lever motor reduction shaft.
The arrow on the lever motor deceleration gear should be facing to the outside.

16. Lubricate the inside of the sub slip feed lever shaft in two places. See Appendix G for a
lubrication diagram.)

17. Lubricate the sub slip feed shaft holder.

18. Lubricate the form stopper shaft rotating unit in two places.

19. Lubricate the main sub assembly frame and sub slip feed roller in two places where they
contact.

20. Lubricate the sub slip feed roller and main sub assembly holder.

21. Lubricate the area of contact of the stopper drive shaft and the form stopper.

22. Lubricate the lever drive cam.

689 E-ring(2.3)

614 Lever motor reduction gear

613 Lever drive motor
detector plate

666 Sub slip feed
roller assembly

616
Lever drive shaft
gear

639 Slip drive gear

Figure 2-14

23. Attach the slip B.O.F. detector assembly to the slip guide lower frame (type B) with one
screw .

24. Insert the lead wire.

Rev. A Disassembly and Assembly 2-15

Confidential

25. Attach the slip guide lower frame to the main sub assembly frame with two screws.

646
Slip guide lower frame
(type B)

691
screw(C.B.S-tite F,3X6)

668
Slip B.O.F. detector
assembly

608
screw(C.B.P-tite,3X6)

26. Insert the sub slip hold sleeves into both ends of the sub slip hold roller.

27. Temporarily assemble the front frame and the slip guide upper frame. Insert the D-cut side
of the sub slip holder roller to the left, align the two nibs, and temporarily assemble.

Disassembly and Assembly 2-16 Rev. A

Confidential

28. Install the slip guide upper frame onto the main sub assembly frame. Align the slip guide
frame nibs in three places.

29. Attach the front support frame to the front frame. Align and insert the three nibs and check,
that the front support frame and the slip guide upper frame are not rising. Fix with six
screws.

30. Tighten two screws on the slip guide upper frame.

31. Attach the slip feed roller shaft holder to the cylindrical platen assembly (only if your printer
has on E/P unit).

32. Hook the slip holder roller spring to the slip holder roller shaft on the D cut side.

33. Insert the slip holder roller sleeve onto the slip holder roller shaft on the D cut side.

34. Attach the slip feed roller shaft holder to the slip holder roller shaft, starting from the side
larger in diameter.

35. Attach the slip holder shaft to the main sub assembly frame using one E-ring.

36. Insert the slip feed roller shaft into the sub slip holder roller and attach with one E-ring.

37. Push the slip drive gears onto the slip holder shaft, starting from the side whose diameter is
largest.

TM-H6000/H6000P Service Manual

38. Use a pressing jig to press in the slip drive gears to the sub slip holder roller.

39. Insert two slip transmission gears into slip transmission gear main sub assembly shaft A.

40. Insert one slip transmission gear onto slip transmission gear shaft B.

41. Insert the paper feed reduction gear onto the paper feed reduction gear sub assembly shaft,
starting from the gear whose diameter is smallest. (see the illustration on the next page.)

42. Attach the J/S change spacer onto the J/S change gear.

43. Attach the J/S change gear to the top of the J/S change spacer.

44. Insert the paper feed transmission gear onto the paper feed transmission gear main sub
assembly shaft.

45. Insert E-ring 3 and E-ring 2 and 3 (5 E-rings, total). See the illustration on the next page.

46. Attach the lever drive coil assembly to the slip guide lower frame with two screws.

47. Perform phase adjustment. (See Chapter 3, “Adjusting and Setting”).
Assemble the following parts when performing phase adjustment:

•Lever drive transmission gear

•Platen lever drive cam

Rev. A Disassembly and Assembly 2-17

Confidential

48. Apply oil to the Platen lever drive cam shaft.

screw(C.B.S-tite F,3X6)

screw(C.B.S-tite F,3X6)

Slip feed roller shaft

Slip guide upper frame

611
Front reinforcement frame

691
screw(C.B.S-tite F,3X6)

holder

Sub slip hold sleeve

Sub slip hold roller

691

E-ring(3)

691

609

645

Front frame

691

727

648

612

686

691

691

609 Slip feed roller shaft holder

654
Endorsement platen shutter

637
Slip hold roller shaft

686 E-ring(3)

727
Sub slip hold sleeve

686 E-ring(3)

615 Lever drive transmission gear

626 Platen lever drive cam

724 Slip hold roller spring

723 Slip hold roller sleeve
609 Slip feed roller shaft holder

638

609

686

639

638

686

609 Slip feed roller shaft holder
634 Paper feed transmission gear
638 Slip transmission gear
639 Slip drive gear
686 E-ring(3)
689 E-ring(2.3)
692 J/S change gear

686

638

639

693

634

686

686

647

692

689

Figure 2-15

49. Attach the paper feed motor to the sub assembly frame and fix with two screws. Check that
the paper feed motor circuit board surface is facing the back of the mechanism.

50. Snap fit the TOF slip detector assembly to the slip guide upper frame.

51. Insert the lead wire.

52. Attach the motor lever T. P. detector assembly to the main sub assembly with one screw.
Turn over the main sub assembly frame and align the detector with the lever drive motor
detector plate in two places. Check that the lever drive motor detector plate and the detector
do not touch.

53. Using two screws, attach the main circuit board assembly (for M-U675) to the main sub
assembly frame. Place the side with the connector to the front of the main sub assembly
frame, and insert set so that the soldered side of the main circuit board assembly (for M­U675) is up. Align with the nibs in two places.

54. Solder the lead wires of the cables.

Disassembly and Assembly 2-18 Rev. A

Confidential

TM-H6000/H6000P Service Manual

Note:

Check that the soldering is secure.

55. Insert the wiring.

56. Affix the R cover detector cable assembly to the main circuit board with adhesive tape.

57. Attach the MICR plate shutter to the slip guide lower frame (type B) with one screw.

671
Slip T.O.F. detector assembly

704 Paper feed motor

691
screw(C.B.S-tite F,3X6)

Lever motor T.P. detector

672

assembly

722
screw(C.B.P-tite,3X8)

691
screw(C.B.S-tite F,3X6)

691
screw(C.B.S-tite F,3X6)

691
screw(C.B.S-tite F,3X6)

653
MICR shutter

673
Main circuit board assembly
(for M-U675)

Figure 2-16

Rev. A Disassembly and Assembly 2-19

Confidential

58. Using four screws, attach the carriage frame unit to the main frame sub assembly. Pass the
intermediate cable through the hexagonal hole in the main sub assembly frame, and pull out
enough cable. Fit the nibs in the carriage frame unit in the main frame notches.

Note:

Check the operating status of the ribbon drive plate assembly.

59. Allign and attach- the front cover detector assembly to the main sub assembly frame nibs.

60. Solder the lead wire of the front cover detector assembly to the main circuit board.

Note:

Check that the soldering is secure.

61. Install the wiring.

691

screw

(C.B.S-tite F,3X6)

730
screw
(C.B.S-tite F,3X4)

691
screw
(C.B.S-tite F,3X6)

Figure 2-17

Disassembly and Assembly 2-20 Rev. A

Confidential

TM-H6000/H6000P Service Manual

62. Hook the paper feed frame fixing lever L (type B) and the paper feed frame fixing lever
spring (type B) to the platen lever frame assembly. Insert the platen lever shaft frame while
attaching the paper feed frame fixing lever spring (type B) onto the paper feed frame fixing
lever L (type B). Use the longer spring here.

63. Hook the paper feed frame fixing lever R and the paper feed frame fixing lever spring (type
A) to the platen lever assembly frame. Insert the platen lever shaft frame while attaching the
paper feed frame fixing lever spring (type A) onto the paper feed frame fixing lever R.

64. Insert the platen earth B plate into the platen lever assembly frame.

679 Paper feed frame fixing L lever (type B) assembly

642 Paper feed frame fixing lever spring (type B)

669 Platen lever frame assembly

Paper feed frame

fixing R lever

652 Platen ground plate (type B)

Paper feed frame fixing lever spring (type A)

670

assembly

640

Figure 2-18

65. Insert the slip feed roller holder onto the slip feed roller. Insert the D-cut in the slip feed
roller on the right side, and insert the legs of the slip feed roller holder on the bottom side.

66. Attach the slip feed roller to the platen lever. Place the hinge so that it is facing upward and
insert the D-cut on the right side with the platen assembly attachment to the front. Insert the
slip feed roller holder into the third hole from the left of the platen roller.

67. Use a pressing jig to push the slip drive gear into the slip feed roller. Attach with one E-ring.

68. Lubricate both sides of the slip feed roller and the slip feed roller support and rotate.

Rev. A Disassembly and Assembly 2-21

Confidential

69. Fix one M3 nylon lock nut to the platen lever. Attach so that the blue part comes below the
screw hole.

70. Attach the platen earth plate A to the platen lever.

71. Hook two platen springs to the platen lever.

72. Fix one M3 nylon lock nut.

73. Attach the platen assembly to the platen lever in two places. Tighten two screws to the
platen and the platen lever.

74. Attach the slip paper guide to the platen lever. Attach the platen lever in three places in the
rack, and install the slip paper guide. Insert the two nibs.

75. While attaching the platen lever spring to the platen earth plate B, attach the platen assembly
to the frame platen lever assembly frame.

76. Assemble the platen lever shaft L.

686
E-ring(3)

Nylon lock nut(M3)

658
Platen adjustment screw

683

686

E-ring(3)

650
Slip paper
guide

625
Platen lever shaf

603

678
Platen
assembly

623 Platen lever

603
Platen
spring

658
Platen adjustment screw

649
Slip feed roller

643
Slip feed roller holder

625

Platen lever shaft
683
Nylon lock nut(M3)

639
Slip drive gear

651
Platen ground plate (type A)

624
Platen lever spring

Figure 2-19

Disassembly and Assembly 2-22 Rev. A

Confidential

TM-H6000/H6000P Service Manual

77. Pass the paper feed frame shaft holder into the platen lever unit.

78. Using two screws, attach the main sub assembly frame. Insert while widening the frame
and align with the D cut.

79. Lubricate the carriage unit in eight places. Also lubricate the platen lever open and close
cam in one place and the platen lever in one place with G-36.

80. Lubricate the inside of main frame in two places with G-48.

81. Install the carriage cover onto the main sub assembly frame. Place the carriage cover in the
carriage guide, and align one screw hole and one nib.

82. Connect paper ejection detector cable assembly A and paper ejection detector cable
assembly B.

83. Tie-wrap the paper ejection detector cable assembly and the front cover detector wires.
(Attach with one screw.)

730
screw
(C.B.S-tite F,3X4)

730
screw
(C.B.S-tite F,3X4)

682

screw

(C.C.,3X5)

Figure 2-20

682
screw
(C.C.,3X5)

635 Paper feed frame shaft

Rev. A Disassembly and Assembly 2-23

Confidential

Assembling the Thermal Mechanism

Pre-assembly Procedures

Pre-assembly of the N. E. Detector Assembly]

1. Attach the N. E. detector to the N. E. detector holder.

2. Fit the micro switch to the N. E. detector holder with one screw.)

504 screw(C.B.B-tite,2X8)

543

Cover open detector

lead wire

509

N.E. detector lever

Figure 2-21

542 Micro switch

508 N.E. detector holder

Pre-assembly of the Paper Cutter Assembly Cover B]

1. Gather the four lead wires for the paper cutter and pass them through the guard tube.

2. Pass each of the four lead wires for the paper cutter through D shield tube.

3. Solder the two write lead wires to the legs of the micro switch. Separate the shield tubes
from the pins.

Note:

Check that the soldering is secure.

4. Position the two paper cutter lead wires.

5. Solder the lead wires to the legs of the paper cutter motor. Separate the shield tubes from
the pins. Install the motor so that the label side is facing upward, and solder the black lead
wire to the (-) and the red lead wire to the (+) sides where they are marked. Be careful of the
direction of the soldering.

Note:

Check that the soldering is secure.

6. Move the two shield tubes toward the two micro switch pins and the two motor pins. The
pins should be covered by the shield tubes.

Disassembly and Assembly 2-24 Rev. A

Confidential

7. Apply hot air to the shield tubes covering the pins to shrink them. Do not allow the hot air
to blow onto the micro switch.

8. Install the micro switch into the paper cutter cover. Completely align the micro switch nibs
and the paper cutter cover holes.

9. Tighten the micro switch and switch screws.

10. Lubricate the drive sub assembly gears. See Appendix G for a lubrication diagram.

11. Attach the paper cutter assembly frame and the paper cutter assembly cover B. Attach while
adjusting the moveable blade so that the drive pin enters the hole in the moveable blade
smoothly. When assembling, pass the paper detector lead wire into the hole in the paper
cutter motor frame so that it does not become pinched.

12. Align the paper cutter frame and the paper cutter cover abutments (four places) and push in.
The nibs should abut completely.

13. Move the paper detector lead wire guard tube and set it in a position that protects it so that
paper cutter frame edge does not hit it.

14. Lubricate the entire moveable blade hole (area of drive pin contact).

TM-H6000/H6000P Service Manual

15. Attach the manual cutter to the paper cutter cover. Securely insert the manual cutter into the
paper cutter cover hole. Place so that the manual cutter protrudes from above the paper
cutter cover.

16. Tighten the two screws on the manual cutter.

Rev. A Disassembly and Assembly 2-25

Confidential

17. Tight on the screw on the paper cutter assembly frame and the paper cutter assembly cover
B.

548
screw(C.B.,2X2.5)

530 Manual cutter A

Paper cutter cover

546

assembly

screw(C.B.S-tite F,3X6)

540

540

screw(C.B.S-tite F,3X6)

528

Paper cutter frame

assembly

Assembly of the Thermal Mechanism

549

Switch

screw

Figure 2-22

548

535
Micro switch

screw(C.B.,2X2.5)

532 Cover tube

534
Paper cutter lead wire

533
Guard tube

1. Snap fit the paper detector assembly to the paper holder.

2. Attach the damper plate to the paper holder. Install on the paper holder rack.

3. Use double-sided tape to affix the relaxation plate fixing plate to the paper holder and fasten
the relaxation plate.

4. Attach the N. E. detector unit to the left frame. Install so that the hexagonal nut position is at
the top.

5. Temporarily tighten the reduction gear shaft to the left frame.

6. Attach the left frame to the paper holder with two screws.

7. Using two screws, attach the frame plate and the right frame to the paper holder.

Disassembly and Assembly 2-26 Rev. A

Confidential

TM-H6000/H6000P Service Manual

8. Fasten the frame plate to the right and the left frames using two screws. Sandwich the right
and left frames and tighten the screws.

9. Fix sensor circuit board A to the right frame with one screw.

10. Install the thermal print head assembly onto the main body.

538 E-ring(1.5)

537 Hexagon nut

502
screw(C.B.P-tite,3X8)

520 Relaxation plate

502
screw(C.B.P-tite,3X8)

546
Paper cutter cover
assembly

515
Left frame

517
Frame plate

510
Paper detector
assembly

513 Head caution seal

547
Relaxation plate
fixing plate

Figure 2-23

11. Place in the head press springs into the press plate.

512
N.E. detector adjustment screw

526 Paper holder

514
Right frame

540
screw(C.B.S-tite F,3X6)

541
Sensor
circuit board
assembly

540
screw(C.B.S-tite F,3X6)

543
Cover open detector
lead wire

502
screw(C.B.P-tite,3X8)

12. Install the press plate and the head press springs into the thermal print head assembly with
two screws.

13. Attach the intermediate circuit board to the right frame with one screw.

14. Insert the reduction gear into the reduction gear shaft. The larger diameter part should be
on the inner side.

15. Attach the receipt paper feed motor to the motor frame with two screws.

16. Attach the receipt paper feed motor to the left frame. Insert the reduction gear shaft into the
motor frame hole.

Rev. A Disassembly and Assembly 2-27

Confidential

17. Install the autocutter unit with two screws.

544
Receipt paper feed motor

540
screw(C.B.S-tite F,3X6)

516
Motor frame

505
Deceleration gear

540

513
Head caution seal

Paper cutter cover assembly

546

540
screw(C.B.S-tite F,3X6)

540
screw(C.B.S-tite F,3X6)

540
screw(C.B.S-tite F,3X6)

Press head spring

506

519
Pressurizing plate

540
screw(C.B.S-tite F,3X6)

525
Thermal print head assembly

527
Intermit circuit board
assembly

Figure 2-24

18. Insert the platen into the platen assembly bearing and attach to the cover frame with one

E-ring.

19. Attach the cover frame to the left and right frames with two E-rings. Insert the cover
rotation shaft from the left and right frame covers, and tighten.

20. Hook the cover springs to the left and right frames. Check the direction for mounting the
cover springs.

21. Attach the fixed blade holder spring to the cover frame.

22. Attach the fixed blade to the cover frame.

23. Connect the N. E. detector lead wire to the micro switch.

24. Connect the cover open detector lead wire to the circuit board assembly sensor A.

25. Affix head caution label B to the front of the paper holder and the front of the motor frame.

Disassembly and Assembly 2-28 Rev. A

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TM-H6000/H6000P Service Manual

26. Connect the lead wires to the intermediate circuit assembly connector.

27. Insert the wires.

Blade holder spring

521

511
Platen
assembly

507
Fixed blade

539
E-ring(2)

523 Cover spring

518
Frame
cover

539
E-ring(2)

503 Platen shaft holder

501
E-ring(2.5)

Figure 2-25

Rev. A Disassembly and Assembly 2-29

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Assembling the TM-H6000

Pre-assembly Procedures

Pre-assembly of the rubber insulator spacer assembly

1. Insert the rubber insulator spacer assembly.

113 Rubber insulator spacer

114 Metallic insulator spacer

Figure 2-26

Assembly of the TM-H6000

1. Install the main unit sub assembly plate A on the main circuit board unit. Attach with six
screws.

2. Connect the power switch cable assembly to the main circuit board unit.

3. Connect the control panel cable to the main circuit board unit.

4. Connect the intermediate circuit board cable to the main circuit board unit connector.

5. Fix strengthening plate B to the main unit sub assembly plate using three screws.

6. Insert the thermal head FFC into the main circuit board unit connector. Verify the direction
for the insertion.

7. Fold the thermal head FFC back along the line.

8. Fasten the thermal head FFC using insulated a piece of tape.

9. Align earth wire assembly F with the screw hole in the back left side of the M-U675
mechanism assembly, and attach with one screw. Use care with the direction of attachment
of earth wire assembly F.

10. Attach the M-U675 mechanism assembly and the main unit sub assembly plate A, and install
the damper spacer assembly.

11. Tighten the screw on the back left side.

12. Connect the main circuit board FFC to the main mechanism and main circuit board unit.
After inserting the FFC into the main mechanism, insert the main circuit board unit. Place
the FFC so that the fold is in the main circuit board side.

13. Fix the control panel circuit board assembly to the mechanism assembly with one screw. Be
careful of the direction when attaching.

Disassembly and Assembly 2-30 Rev. A

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TM-H6000/H6000P Service Manual

14. Connect the control panel cable to the control panel circuit board assembly.

107
screw
(C.P.S-tite(0),3X6)

Switch panel circuit board

208

assembly

113
Rubber
insulator spacer

114
Metallic insulator spacer

203 Earth wire assembly

101 screw(C.B.S-tite F,3X4)

600 Mechanism assembly
(M-U675, type AB)

106 screw(C.B.S-tite F,3X6)

128 Strengthening plate

206
Intermit circuit board
cable

107

210

Main circuit board assembly

(for TM-H6000/H6000P)

screw(C.P.S-tite(0),3X6)

201

107

screw
(C.P.S-tite(0),3X6)

209 Circuit board FFC

107
screw(C.P.S-tite(0),3X6)

Figure 2-27

Rev. A Disassembly and Assembly 2-31

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15. Attach the rubber feet to the lower case.

16. Attach the mechanism assembly to the lower case using four screws. Align the mechanism

assembly with the lower case nibs, use two 4 ✕ 12 bind B-tite screws with two plain washers
4 ✕ 25 in the front, and tighten two bind B-tite screws in the back.

17. Attach the switch for the power switch cable assembly to the lower case.

18. Align and install the thermal unit sensor circuit board onto the thermal frame nibs. Attach
with one screw.

19. Tighten two screws on the left and right of the thermal frame.

20. Attach the thermal cushion to the thermal frame.

21. Install the thermal frame into the lower case. (Attach with four screws.) Align the thermal
frame with the two nibs on the lower case and screw boss in two places and tighten the
screws. Tighten the screws on the left front side along with the earth wire assembly.

22. Connect the R cover detector cable assembly to the thermal unit sensor circuit board
assembly.

23. Lubricate in two places, on the plate and hook slider with G-48.

24. Align the M-T6000 with the two nibs on the thermal assembly and attach with three screws.

25. Connect the intermediate circuit board cable to the M-T6000 intermediate circuit board
connector.

Disassembly and Assembly 2-32 Rev. A

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TM-H6000/H6000P Service Manual

26. Hook the thermal L, R springs to the thermal frame. Check the direction of insertion of the
D-cut groove and attach the thermal L, R springs on thermal holder assembly.

105
screw(C.C.S-tite,3X6)

500
Thermal mechanism
assembly (M-H6000)

109
screw(C.B.B-tite,4X25)

108
screw(C.B.B-tite,4X12)

106
screw(C.B.S-tite F,3X6)

112

Plain washer

(4.2X1X12)

103
screw(C.P.T-B,3X10)

Left thermal spring

108

203
Earth wire
assembly

screw
(C.B.B-tite,4X12)

131

105

screw

(C.C.S-tite,3X6)

125
Thermal holder assembly

132
Right thermal
spring

117

Rubber foot

141
Front seal

145
Power switch cover

117

Rubber foot

screw

(C.P.T-B,3X10)

130
Thermal cushion

207
Power switch
cable assembly

103

115
Caution seal

106
screw
(C.B.S-tite F,3X6)

204
Thermal unit
sensor
circuit
board
assembly

103 screw
(C.P.T-B,3X10)

127
Thermal frame

106
screw
(C.B.S-tite F,3X6)

117
Rubber foot

Figure 2-28

Rev. A Disassembly and Assembly 2-33

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27. Insert supporting plate A into the lower case.

28. Cut the bar of the upper case.

29. Assemble the upper case and the table holder to the lower case.

30. Place thermal sheet onto the M-T6000 rack.

31. Connect the thermal head FFC to the M-T6000.

32. Attach the control panel unit to the front case.

33. Attach the clamp to the mechanism assembly.

34. Connect the control panel unit cable to the control panel circuit board assembly.

35. Assemble the front case to the mechanism assembly with two screws. Align and the front

case to the nibs on the right side. Tighten one screw B-0, 3 ✕ 10 in the screw hole on the right
side and one screw 4 ✕ 20 on the left side.

Disassembly and Assembly 2-34 Rev. A

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36. Install the paper ejection detector lead wire.

TM-H6000/H6000P Service Manual

screw(C.C.,4X20)

137
Support plate

104

120
Front case

124
Switch panel unit

104
screw(C.C.,4X20)

119
Upper case

110
Clamp

138
Table holder

103
screw(C.P.T-B,3X10)

Figure 2-29

Rev. A Disassembly and Assembly 2-35

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37. Attach the hook spring to the thermal case.

38. Attach the rack plate to the thermal case.

39. Snap fit the thermal button to the thermal case, and insert the hook plate.

40. Install the thermal case onto the M-T6000. Align the bosses on the left and right one at a time
in the rack, and insert one on the left and two on the right.

41. Hook L, R thermal springs to the thermal frame rack.

42. Close the thermal case.

43. Open the M-T6000 cover.

44. Attach the thermal mechanism cover with four screws.

45. Close the thermal mechanism cover.

46. Attach the ribbon cassette cover to the upper case. Align and insert the nibs on the ribbon
cover hinge.

Disassembly and Assembly 2-36 Rev. A

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47. Tighten the two screws on the upper case and lower case.

101
screw(C.B.S-tite F,3X4)

140
Operation label
(type CA)

TM-H6000/H6000P Service Manual

135
Thermal mechanism cover

134
Thermal button

121
Ribbon cassette cover

123
Thermal
case

133
Hook spring

129
Hook plate

101
screw(C.B.S-tite F,3X4)

134
Thermal button

133
Hook spring

129
Hook plate

Figure 2-30

Rev. A Disassembly and Assembly 2-37

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48. Attach the RS-232C I/F circuit board assembly to the connector plate, and tighten the two
screws.

49. Attach the parallel I/F circuit board assembly to the connector plate, and tighten the two
screws.

50. Attach the RS-232C I/F circuit board assembly or the parallel I/F circuit board assembly to
the main circuit board unit with two screws.

51. Attach the lower plate and the IC cover to the main unit sub assembly plate A with five
screws. Align the lower plate with the nibs on the main unit sub assembly and insert. Insert
the IC cover into the lower plate and tighten the screws. After that, tighten the screws at
four positions on the lower plate.

52. Tighten three label.

53. Affix a caution seal.

54. Affix an operation label (type CA).

55. Affix an operation label (type BA).

56. Affix an operation label (type DA).

Disassembly and Assembly 2-38 Rev. A

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57. Affix a front label AA.

TM-H6000/H6000P Service Manual

107
screw(C.P.S-tite(0),3X6)

144
Hexagon lock screw
(millimeter type)

107
screw
(C.P.S-tite(0),3X6)

202
RS-232 I/F circuit board assembly

screw(C.B.S-tite F,3X6)

106

screw

(C.B.S-tite F,3X6)

106

111
IC cover

106
screw(C.B.S-tite F,3X6)

136
Lower plate

106
screw(C.B.S-tite F,3X6)

Figure 2-31

58. Perform the platen gap adjustment. (See Chapter 3, "Adjusting and Setting")

116
Connector plate
(type AA))

Rev. A Disassembly and Assembly 2-39

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Disassembly and Assembly 2-40 Rev. A

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TM-H6000/H6000P Service Manual

Chapter 3

Adjusting and Setting

Before Making Adjustment

Always observe the following precautions when disassembling, assembling or adjusting the
printer.

CAUTION:

❏ Always remove the power supply unit from the printer before working.

There is power flowing in the internal circuit board even if you turn off the printer power
supply switch. You can damage the printer if you work when the power supply is still
attached.

❏ Remove all peripheral equipment connected to the printer before starting your work.
❏ Do not perform any work that is not described in this chapter. Doing so can result in injuries

or damage to the printer.

❏ Do not touch the flexible plastic cable (FPC) or the FFC pins with your hands.

The Purpose of Adjusting and Setting

When you perform maintenance or repair on the printer, you must always adjust and set the
printer so that it operates normally after you disassemble, replace parts or repair the printer.

Rev. A Adjusting 3-1

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Adjusting

Phase Adjusting

Perform phase adjustments when you have performed any one of the followings.

Items Requiring Phase Adjustment

❏

When you replaced or removed the lever drive gear.

❏

When you replaced or removed the lever drive transmission gear.

❏

When you replaced or removed the platen lever drive cam.

1. Push the claw of the lever drive coil (type B).

Lever drive coil (type B)

Claw when raised

Claw when pushed

Figure 3-1

3-2 Adjusting Rev. A

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TM-H6000/H6000P Service Manual

2. While pushing the claw of the lever drive coil (type B), rotate the lever motor reduction gear
in the direction indicated in the illustration so that the protrusion on the lever drive gear
faces the very bottom of the printer.

Lever motor
reduction gear

Lever drive gear

A

A

A

Lever drive gear
protrusion

Figure 3-2

Rev. A Adjusting 3-3

Confidential

3. Remove your finger from the claw of the lever drive coil (type B). Check that the claw
returns to its original position. Redo from step 1 if it has not returned to its original position.

Figure 3-3

3-4 Adjusting Rev. A

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TM-H6000/H6000P Service Manual

4. Rotate the lever motor reduction gear. Continue until the lever drive gear no longer rotates.

Lever motor
reduction gear

Lever drive gear

Figure 3-4

Rev. A Adjusting 3-5

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5. While the printer is in that state, attach the lever drive transmission gear to the lever drive
transmission gear axis. (E-ring, 1 place.)

Lever drive
transmission gear

E-ring

Lever drive
transmission gear

Lever drive gear

Figure 3-5

3-6 Adjusting Rev. A

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TM-H6000/H6000P Service Manual

6. Lubricate the platen lever drive cam shaft.

7. Assemble the platen lever drive cam to the platen lever drive cam shaft (E-ring, 1 place). Set
so that the three gear teeth of the platen lever drive cam are facing downward.

Platen lever
drive cam

E-ring

Platen lever
drive cam

E-ring

Platen lever
drive cam

three teeth of
the gear

Laver drive
transmission
gear

Figure 3-6

Rev. A Adjusting 3-7

Confidential

Platen lever
drive cam

Claw of the lever
drive coil ( type B )

Lever drive
transmission gear

Lever drive gear

Lever motor reduction gear

Figure 3-7

3-8 Adjusting Rev. A

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TM-H6000/H6000P Service Manual

Adjusting the Platen Gap

Adjust the platen gap when you have performed any one of the followings.

Platen Gap Adjustment

❏

When you replaced or removed the print head unit.

❏

When you disassembled or re-assembled the TM-H6000/H6000P printer.

Use the following steps to adjust the platen gap.

1. Connect the power supply unit to the printer. Turn on the power switch to the printer. Turn
off the power switch to the printer when the printer finishes the power on test. Remove the
power supply unit from the printer. (These steps will close the platen.)

Note:

When you are adjusting the platen gap, you must close the platen. There are instances where the
platen is open on this printer after assembly because of positioning with the gears and cams.
Therefore, you must always use these steps to close the platen.

2. Remove the ribbon cassette cover. (See page 2-37.)

3. Remove the carriage cover frame assembly. (See page 1-15.)

4. Prepare 0.45 mm and 0.50 mm thickness gauges. Insert the thickness gauges from the side of
the print head unit, as shown in the figure below.

Figure 3-8

Rev. A Adjusting 3-9

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5. While using the thickness gauges, adjust the stopper screw of the platen set so that the

positions indicated below are 0.5 ± 0.05 mm.

Screw Platen set

Print Head

20mm 40mm

The stopper screw of the platen set is located here.

Screw

0.5 +/- 0.05mm

Figure 3-9

Note:

The following shows the conditions for adjusting the platen gap to 0.5

❏ The 0.45 mm thickness gauge falls under its own weight.
❏ The 0.50 mm thickness gauge is pinched and will not fall between the platen and the print

head unit.

6. Attach the ribbon cassette cover and the carriage cover set frame.

3-10 Adjusting Rev. A

±

0.05 mm.

Confidential

Threshold Value Setting for Detectors

Perform this setting when you have performed any one of the following.

Items Requiring Setting

❏

When you replaced the Slip T. O. F. detector assembly.

❏

When you replaced the Slip B. O. F. detector assembly.

❏

When you replaced the paper ejection detector assembly.

❏

When you replaced or repaired the main circuit board assembly (for TM-

H6000/H6000P).

1. Remove slip paper if it is set.

Note:

You cannot make accurate settings if there is any slip paper remaining. There is no problem if roll
paper is present.

2. Connect the power supply to the printer.

3. Open the roll paper cover.

TM-H6000/H6000P Service Manual

4. Turn on the power switch to the printer while pressing the FEED button and the RELEASE
button at the same time.

5. Press the RELEASE button 7 times.

6. Close the roll paper cover.

7. The printer will automatically set the detector. The main circuit board will store the setting
values.

Rev. A Adjusting 3-11

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3-12 Adjusting Rev. A

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TM-H6000/H6000P Service Manual

Appendix A

Service Tools and Lubricants

Table A-1 Service tools required

Tool Size Purpose

Gap gauges <Thickness>

0.45 mm x 1

0.50 mm x 1

Crosshead screwdriver No. 0, 1 and 2

Flathead screwdriver — Other assembly/

Tweezers — Other assembly/

Soldering iron —

Wrist band — Other assembly/

E-ring holder 1.5, 2.0, 2.3, 2.5, 3.0, 4.0 and

5.0

Hexagon box driver 5.5 mm Other assembly/

To adjust the platen gap.

Other assembly/
disassembly

disassembly

disassembly

Other assembly/
disassembly

disassembly

Other assembly/
disassembly

disassembly

Table A-2 Lubricants

Lubricant

O-10

G-36

G-48

Rev. A Service Tools and Lubricants Appendix A-1

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Appendix A-2 Service Tools and Lubricants Rev. A

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TM-H6000/H6000P Service Manual

Appendix B

Maintenance

Maintenance and Inspection

Perform maintenance and inspection to prevent trouble and maintain the fine, initial
performance of this printer for a long time.

There are two types of maintenance and inspection of this printer, based on the technical skill
required: “Daily Inspection” and “Periodic Inspection.”

❏ Daily Inspection ➝ Items that can be inspected easily and handled by a user of this

printer.

❏ Periodic Inspection ➝ Items that are inspected and handled by a person who has technical

knowledge.

Daily Inspection

Table B-1 Daily Inspection Checklist

Items to Check Checkpoints Handling

Printer setup The connector cables are plugged in. Reconnect cables.

Paper dust or particles
in the printer

The roll paper and ribbon cassette are
properly installed.

The ribbon is routed properly in the printer.

The ribbon is not damaged. Replace the ribbon cassette.

The receipt roll paper cover and unit
cover are closed.

The slip front cover is closed.

Open the roll paper cover. There should
be no large paper particles or foreign
matter inside.

Open the front cover. There should be no
large paper particles or foreign matter
inside.

Install them properly.

Close the cover.

Remove the paper particles or foreign
objects.

Use an electric vacuum cleaner to clean
thoroughly.

Remove the paper particles or foreign
objects.

Use an electric vacuum cleaner to clean
thoroughly.

Rev. A Maintenance Appendix B-1

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Periodic Inspection

Table B-2 Periodic inspection checklist

Items to Check Checkpoints Handling

Status of paper dust,
dirt, dust adhering to
the parts

Spring Shapes Is the fixed blade holder spring

Autocutter Status Is there paper dust or foreign

Lubrication Status Check the lubrication. See “General Lubrication

Operation Check Are there any abnormal noises or

Is there any uneven or faint
printing?

Is there a great deal of dirt, or dust
adhering to the parts?

Is there paper dust in the top of
form detector or paper slip path?

Is there any paper dust or other
foreign matter adhering to the
paper end detector or the
ejection detector?

Is the receipt side platen roller
white with paper dust?

deformed or loose?

Are the other springs deformed or
loose?

matter adhering to the cutter
blade?

printing errors when operating?

(1)Clean the thermal head (see
page B-3 for instructions).
(2)Clean the receipt side platen
roller.

Use an electric vacuum cleaner to
clean thoroughly.

Use an air spray can to blow out
paper dust from the paper path.

Wipe with a soft cloth to remove
the paper dust, etc.

Dampen a cloth with a small
amount of water and wipe the
roller surface.

Attach or replace the springs.

Remove the paper dust or foreign
matter from the cutter blade.

Drawings” to lubricate.

See “Troubleshooting.” Biannually

When to Perform

Every three
month

Biannually

Biannually

Biannually

Biannually

Biannually

Biannually

Appendix B-2 Maintenance Rev. A

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TM-H6000/H6000P Service Manual

Thermal head Cleaning

It is necessary for you to clean the thermal head periodically (generally every three month) to
maintain the receipt print quality.

CAUTION:

After printing, the print head can be very hot. Be careful not to touch it. Also let it cool
before you clean it.
Do not damage the print head by touching it with your fingers or any hard object.

1. Open the paper roll cover.

Figure B-1 Opening the paper roll cover

2. Clean the thermal element (the green part) of the print head with a cotton swab moistened
with an alcohol solvent (ethanol, methanol, or IPA)

print head

Figure B-2 Cleaning the thermal head

Rev. A Maintenance Appendix B-3

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Appendix B-4 Maintenance Rev. A

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TM-H6000/H6000P Service Manual

Appendix C

Installation

You can connect up to four cables to the printer. They all connect to the connector panel (on the
bottom rear of the printer), which is shown below.

Figure C-1 Connector panel

Note:

This illustration shows the serial interface model. If you have the parallel interface model, your interface
connector will look different.

Before connecting any of the cables, make sure that both the printer and the host PC are turned
off.

Connecting to the Host PC

You need an appropriate serial interface or parallel interface cable to connect your computer to
the printer. For the serial model, it is important that you use a null modem cable, not any other
serial cable, and for the parallel model use an IEEE 1284 cable.

1. Plug the cable connector securely into the printer’s interface connector.

2. If the cable connector has screws on it, tighten the screws on both sides of the connector.

Figure C-2 Tightening the screws

Rev. A Installation C-1

Confidential

Note:

Your printer has inch-type hexagonal lock screws installed. If your interface cable requires
millimeter-type screws, replace the inch-type screws with the enclosed millimeter-type screws using a
hex screwdriver (5 mm).

inch screw

Figure C-3 Inch screw and millimeter screw

3. If your interface connector has a grounding wire, attach it to the printer using the screw
labeled FG, which is next to the interface connector.

4. Attach the other end of the cable to the host PC.

millimeter screw

Connecting the Drawer

WARNING:

Use a drawer that matches the printer specifications. Using an improper drawer may
damage the drawer as well as the printer.

Do not connect a telephone line to the drawer kick-out connector; otherwise the printer
and the telephone line may be damaged.

Plug the drawer cable into the drawer kick-out connector on the connector panel in the location
indicated below.

drawer kick-out connector

Figure C-4 Connecting the drawer

C-2 Installation Rev. A

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TM-H6000/H6000P Service Manual

Connecting to a Direct Connection Display Module

WARNING:

Be sure not to connect this cable to the drawer kick-out connector, which is next to the
power connector.

Also do not connect a telephone line to the display module connector.

Note:

The DM connector can be used only with the serial interface model of this printer.

1. Make sure the printer is turned off.

2. Plug the cable connector (provided with the direct connection display module) securely into
the printer’s display module connector until it clicks.

DM connector

Figure C-5 Connecting to a direct connection display module

Power Connection

Use the optional EPSON PS-170 power supply or equivalent for your printer.

WARNING:

Make sure you use the EPSON PS-170 power supply or equivalent. Using an incorrect
power supply may cause fire or electrical shock.

Rev. A Installation C-3

Confidential

CAUTION:

When connecting or disconnecting the power supply from the printer, make sure that
the power supply is not plugged into an electrical outlet. Otherwise you may damage
the power supply or the printer.

If the power supply’s rated voltage and your outlet’s voltage do not match, contact
your dealer for assistance. Do not plug in the power cord. Otherwise you may damage
the power supply or the printer.

1. Make sure the printer’s power switch is turned off, and the power supply’s power cord is
unplugged from the electrical outlet.

2. Check the label on the power supply to make sure the voltage required by the power supply
matches that of your electrical outlet.

3. Plug the power supply cord into the connector shown below.

power supply connector

Figure C-6 Power connection

Note:

To remove the DC cable connector, make sure the power supply’s power cord is unplugged; then grasp the
connector at the arrow and pull it straight out.

C-4 Installation Rev. A

Confidential

Appendix D

Product Overview

Component Functions

TM-H6000/H6000P Service Manual

paper roll
cover

control
panel

interface
connector

Figure D-1

DM connector

(*) This illustration shows the serial interface
model. The parallel interface connector looks
slightly different.

drawer kick-out
connector

unit
cover

front
cover

power supply
connector

Figure D-2

DIP
switch
cover

Figure D-3

Rev. A Product Overview Appendix D-1

Confidential

Outline of Printer Mechanism

Impact Dot Matrix Printer Mechanism

Printing Mechanism (Main Print Head Unit)

This mechanism consists of the main print head unit, which has nine wires vertically arranged in
one row, the head carriage assembly, platen, carriage motor, carriage feed pulley, carriage guide
shaft, carriage transmission pulley, and carriage transmission belt.

Platen

Main print head unit

Carriage feed pulley

Carriage motor

Head carriage assembly

Carriage transmission belt

Figure D-4

Carriage guide shaft

Carriage transmission
pulley

Appendix D-2 Product Overview Rev. A

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TM-H6000/H6000P Service Manual

Movement of main print head unit

When the carriage motor rotates the carriage motor gear in the direction indicated by the white
arrow, the driving force is sequentially transmitted to the carriage feed pulley and carriage
transmission belt, moving the head carriage assembly, which is fixed to the carriage
transmission belt, in the direction indicated by the white arrow.

Carriage feed pulley

Main print head unit

Carriage motor gear

Carriage transmission belt

Head carriage assembly

Figure D-5

Printing operation

Wire movement when printing one dot

1. When the prescribed electrical pulse is applied to the drive coil, the steel core is excited, and
the operation plate is pulled in the direction indicated by black arrow. At this time, the dot
wire is pressed against the operation plate by the force of the wire return spring. The force
of the operation plate causes the dot wire to be pushed out towards the platen (in the
direction indicated by black arrow).

2. One dot is printed by the dot wire when it is pushed out and strikes the platen through the
ink ribbon and paper.

Rev. A Product Overview Appendix D-3

Confidential

3. When the electrical pulse to the drive coil ends, the dot wire and operation plate are
returned to the standby status by the spring force of the wire return spring and operation
plate spring.

Paper

Operating plate

Wire return spring

Dot wire

Wire guide

Ink ribbon

Platen

Core

drive coil

Figure D-6

Appendix D-4 Product Overview Rev. A

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TM-H6000/H6000P Service Manual

Printing operation when printing one character

The printing operation for a 9 ✕ 9 dot matrix is explained in this section.

Characters are printed by energizing the respective print solenoids at the timing corresponding
to the head carriage movement position, using the carriage motor phase change signal as a
reference signal. The print head unit is moved approximately 0.339 mm by a one step rotation

(7.5°) of the carriage motor.

To print the number "2", printing solenoid numbers 2 and 9 are energized in sync with the
carriage motor phase change signal. Next, print solenoid number 8 is energized in sync with
TnH, delayed by a half dot time interval. The number "2" is printed by repeating this process.

TnH Tn4(H)

Tn+1 Tn+3 Tn+5

Tn+2 Tn+4

Tn

Carriage motor phase

switching timing

Print solenoid 1

2

3

4

5

6

7

8

9

Figure D-7

Rev. A Product Overview Appendix D-5

Confidential

Platen open/close operation

The platen is attached to the platen lever by the platen gap adjustment screw. The platen open/
close operation is performed when a check is inserted and the MICR (option) is read. When the
lever coil is energized while the lever drive motor is being rotated, linkage of the lever ratchet
wheel to the paper feed trigger suction plate is released, and the lever drive gear rotates the
prescribed amount in the direction indicated by the arrow. This rotation is transmitted by the

lever drive transmission gear, rotating the platen lever open/close cam 180°. The platen lever

moves in the direction indicated by arrow a around the platen lever shaft, and the platen and
slip feed roller open (see the figure D-8). The MICR read operation is performed on the check at
this time.

To close the platen, the lever drive coil is energized again while the lever drive motor is rotated,
rotating the lever drive gear the prescribed amount in the direction indicated by the arrow. This

rotates the platen lever open/close cam 180°, and the platen lever is moved in the direction

indicated by arrow b around the platen lever shaft by the slip retainer spring. The slip feed
roller and slip retainer roller make contact at this time, closing the platen.

Check paper

Platen lever shaft

Slip hold roller

Platen

Platen lever

Slip feed roller

Platen lever
drive cam

a

b

Lever drive
transmission
gear

Lever drive gear

Figure D-8

Appendix D-6 Product Overview Rev. A

Confidential

TM-H6000/H6000P Service Manual

Detection Mechanism Unit

The detection mechanism unit is comprised of the following mechanisms.

TableD-1 Detection mechanism unit functions

Mechanism Function

Home position detection
mechanism

Carriage detection
mechanism

B.O.F. detection mechanism Slip detection

T.O.F. detection mechanism Slip detection

Paper ejection detection
mechanism

Lever motor T.P. detection
mechanism

Front cover detection
mechanism

Initial setting of printer

Detection of head carriage malfunction

Slip detection

Lever drive motor timing signal detection

Front cover open/closed status detection

Lever motor T.P.
detector assembly

Home position detector

paper ejection detector

Front cover detector
assembly

Carriage detector
assembly

Slip B.O.F. detector
assembly

Slip T .O .F. detector
assembly

Figure D-9

Rev. A Product Overview Appendix D-7

Confidential

Home position detection mechanism

The home position detection mechanism is located at the left end of the head carriage assembly.
This mechanism keeps track of the head carriage assembly movement position. The initial
settings are made by detecting the detection plate at the rear of the head carriage assembly.

The home position detector consists of an LED and photo IC. When the head carriage assembly
is moved, the detection plate passes between the LED and photo IC. The photo IC output level
changes when the light rays are interrupted. This change in output level is used as a detection
signal for the head carriage movement position.

Printer side

+5V

When light is emitted

interrupted

Signal level at point A

Low

GND

head carriage detector assembly

Figure D-10

High

When light is

GND

Carriage detection mechanism

The carriage detection mechanism uses a rotary encoder interlocked to the carriage motor gear
to detect abnormal carriage motor rotation.

This mechanism is comprised of the carriage drive transmission gear and carriage detector,
which are located on the carriage motor shaft.

The carriage detector consists of an LED and photo transistor.

The driving force generated by the carriage motor is transmitted to the carriage motor gear,
carriage drive pulley, carriage belt, carriage transmission pulley, and the carriage drive
transmission gear, which is located at an equal interval on the inside of the gear, where the
screening plate is located. When the carriage drive transmission gear is rotated by the driving
force of the carriage motor, the screening plate passes between the LED and photo transistor.

The output level of the photo transistor changes at this time, since the light rays are interrupted.

This output level is used as the detection signal for carriage motor rotation.

Printer side

+5V

GND

When light is emitted

High

When light is

interrupted

GND

Signal level at point A

Low

Screening plate

Figure D-11

Appendix D-8 Product Overview Rev. A

Confidential

TM-H6000/H6000P Service Manual

Screening plate

Carriage drive

Carriage belt

transmission gear

Carriage motor gear

Carriage drive pulley

Carriage detector

Carriage transmission pulley

Figure D-12

Bottom of form (B.O.F.) detection mechanism

The B.O.F. detection mechanism detects whether or not slip paper has been inserted, and the
rear edge of the paper when printing is performed.

The mechanism is located near the right end of where paper is inserted to ensure it can
determine whether or not a slip has been inserted and for proper positioning.

The B.O.F. detector is comprised of an LED and photo resistor. When a paper slip is inserted,
the light rays between the LED and photo resistor are interrupted, resulting in a change in the
photo resistor output level.

This change in output level is used as a detection signal to determine whether or not a slip has
been inserted.

Slip paper

Paper guide

Document table

B,O,F detector assembly

Printer side

Slip paper

+5V

High

When light is

interrupted

GND

GND

Signal level at point A

When light is emitted

Figure D-13

Top of form (T.O.F.) detection mechanism

The T.O.F. detection mechanism detects whether or not a slip has been inserted. The mechanism
is located near the top (before the form stopper) to ensure it can determine whether or not a slip
has been inserted and for proper positioning.

Low

Rev. A Product Overview Appendix D-9