Epson TM-U200D, TM-U200PD Service manual

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Technical manual

TM-U200D/U200PD

Copied Date 199 , , Copied by

English

4005680

Confidential

CONFIDENTIALITY AGREEMENT

BY USING THIS DOCUMENT, YOU AGREE TO ABIDE BY THE TERMS OF THIS AGREEMENT. PLEASE RETURN THIS DOCUMENT IMMEDIATELY IF YOU DO NOT AGREE TO THESE TERMS.

1. This document contains confidential, prop rietary informat ion of Seiko Epson Corporation or its affiliates. You must keep such information confidential. If the user is a business entity or organization, you must limit disclosure to those of your employees, agents and contractors who have a need to know and who are also bound by obligations of confidentiality.

2. On the earlier of (a) termination of your relationship with Seiko Epson, or (b) Seiko Epson’s request, you must stop using the confidential information. You must then return or destroy the information, as directed by Seiko Epson.

3. If a court, arbitrator, government agency or the like orders you to disclose any confidential information, you must immediately notify Seiko Epson. You agree to give Seiko Epson reasonable cooperation and assistance in resisting disclosure.

4. You may use confidential information only for the purpose of operating or servicing the products to which the document relates, unless you obtain the pr ior written consent of Seik o Epson for some other use.

5. Seiko Epson warrants that it has the right to disclose the confidential information. SEIKO EPSON MAKES NO OTHER WARRANTIES CONCERNING THE CONFIDENTIAL INFORMATION OR ANY OTHER INFORMATION IN THE DOCUMENT, INCLUDING (WITHOUT LIMITATION) ANY WARRANTY OF TITLE OR NON-INFRINGEMENT. Seiko Epson has no liability for loss or damage arising from or relating to your use of or reliance on the information on the document.

6. You may not reproduce, store or transmit the confidential information in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise) without the prior written permission of Seiko Epson.

7. Your obligations under this Agreement are in addition to any other legal obligations. Seiko Epson does not waive any right under this Agreement by failing to exercise it. The laws of Japan apply to this Agreement.

CONFIDENTIAL

EPSON

SEIKO EPSON CORPORATION

Printed in Japan E9608130-0000SE

CONFIDENTIAL

FCC CLASS A

FCC Compliance Statement

For American Users

This equipment has been tested and found to c omply with th e l imits for a C la ss A digital d evice, pursuant to Part 15 o f the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.

This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction m a nual, may cau se harmful interference to rad io co mmunic ati ons. Oper ati on of t his e quipm ent in a residential area is likely to cause harmful interference, in which case the user will be required to correct the interference at his own expense.

WARNING

The connection of a non-shielded printer interface cable to this printer will invalidate the FCC Verification of this device and may cause interference levels which exceed the limits established by the FCC for this equipment.

You are cautioned that changes or modifications not e xpressly approv ed by the party re sponsible for c ompliance could void your authority to operate the equipment.

FOR CANADIA N USERS

This digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus as set out in the radio interference regulations of the Canadian Department of Communications.

Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites applicables aux appareils numériques de Class A prescrites dans le règlement sur le brouillage radioélectrique édicté par le Ministère des Communications du Canada.

GEREÄUSCHPEGEL

Gemäß der Dritten Verordrung zum Gerät esiche rheit sgecset z (M aschin enlärmi nformat ions - Verordnung -3. GSGV) ist der arbeitsplatzbezogene Geräusch-Emissionswert kleiner als 70 dB(A) (basierend auf ISO 7779).

TM-U200D/U200PD Technical Manual

Rev. B i

CONFIDENTIAL

Introduction

The TM-U200D and TM-U200PD are one-station printers for ECR and POS use which can be used for printing the results of weighing or measuring.

The main features of the TM-U200D and TM-U200PD printers are the following:

❏ High-speed printing through logic-seeking control ❏ Excellent reliability and long life due to use of two s tepping motor s, one for movin g the carriage and one for paper

feeding

❏ Flexible paper feed setting permits printing in accordance with any user-defined format ❏ Command protocol based on ESC/POS, a widely used standard ❏ Built-in drawer kick-out interface provides capability to drive two drawers ❏ Selectable character fonts (7 x 9, 9 x 9) ❏ Semi-automatic paper loading capability ❏ AC adapter (included) provides compact power supply ❏ Compact and light in weight ❏ Automatic Status Back (ASB) function to automatically send printer status changes. ❏ Two-color printing. Black and red colors are selectable. (2-color Print Version only)

ii Rev. B

CONFIDENTIAL

Notes and Cautions

Note:

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

CAUTION:

Cautions must be observed to avoid damage to you r equipment.

Rev. B iii

CONFIDENTIAL

Revision Sheet

Revision Page Altered Item and Contents

Rev. B All Added information of the 2-color Print Version

iv Rev. B

CONFIDENTIAL

Chapter 1 Features and General Specifications

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Printing Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Character Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Paper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Paper Roll Supply Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

Receive Buffer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8

Ribbon Cassette . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8

External Dimensions and Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9

Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9

Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

Safety and EMI Standards Applied . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

Printer Installation Stance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

Hardware Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11

Main Unit Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12

Motor, Paper Feed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12

Motor, Carriage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12

Print Head Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12

Detector Sub-ass’y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12

Paper Detector Switch Sub-ass’y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13

Near-end Detector (N.E.-U200); (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13

Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13

Interface Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13

Power Supply Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14

Drawer Kick-Out Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14

Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16

RS-232 Serial Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16

Interface Connector Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17

RS-485 Serial Interface (option) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19

IEEE 1284 Parallel Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19

Reverse Mode (Data Transmission from Printer to Host) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19

Interface Connector Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21

Buttons and Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24

Power Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24

Panel Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24

DIP Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25

Panel LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-27

Self-test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-27

Performing the Self Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-27

Error Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-28

Printer Operation When an Error Occurs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-28

Data Receive Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-28

Buffer Full Printing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-28

Detectors and Printing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-28

Hexadecimal Dump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-29

Hexadecimal Dump Function 1-29

Performing a Hexadecimal Dump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-29

Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-29

External Power Supply PS-170 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-30

TM-U200D/U200PD Technical Manual

Rev. B -1

CONFIDENTIAL

Chapter 2 Mechanism Configuration and Operating Principles

Printer Mechanism Operating Principles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Print mechanism unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2

Print head unit movement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3

Wire movement when a single dot is printed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Printing a character (9x9 font) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4

Paper Feed Mechanism Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5

Paper loading (semi-automatic loading) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6

Paper feeding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6

Ribbon Feed Mechanism Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-7

Ribbon feeding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-7

Detection Mechanism Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-9

Home position detection mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

Paper detection mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

Near-end detection mechanism (optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

Ribbon Switch Mechanism Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-10

Switching from Black to Red . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11

Releasing from Red to Black . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-11

Electrical Circuitry Operating Principles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12

Hardware Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-12

Principles of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-16

Power Supply Circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-16

Control Circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-17

CPU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-18

Various detector circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-22

Host interface circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-23

Drawer kick-out drive circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-23

DIP switch read circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-24

Printer Mechanism Drive Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-25

Print head drive circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-25

Chapter 3 Handling and Maintenance

Handling Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1

Storage Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1

Use Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1

Paper Handling Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1

Ribbon Cassette Handling Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2

Replacing the Paper Roll . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2

Replacing the Ribbon Cassette . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4

Removing Jammed Paper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-6

Using the Power switch cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-8

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-8

Periodic Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-8

Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-9

Lubricants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-9

Lubrication Standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-9

Lubricants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-9

Lubrication Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-10

-2 Rev.B

CONFIDENTIAL

Chapter 4 Troubleshooting

Self-test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Initiating the Self-test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Self-test Standby . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Ending the Self-test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Troubleshooting Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Troubleshooting Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9

Error Types and Countermeasures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14

Chapter 5 Disassemb ly, Assembly, and Adjustment

Small Part Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

Removing the fuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

Sub-assembly A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

Frame, paper feed unit ass’y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

Main Assembly 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8

Lever, ribbon switch , Spring, ribbon release , Lever, ribbon release , Gear, ribbon intermediate,

Gear, ribbon transmission , Ribbon take-up ass’y , and Plate, ribbon drive ass’y. . . . . . . . . . . . . . . . . . . . . . . . . 5-8

Main Assembly 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10

Tension plate ass’y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10

Main Assembly 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10

Frame, paper feed ass’y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10

Main Assembly 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11

Motor, carriage ass’y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11

Main Assembly 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12

Carriage sub-ass’y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12

Main Assembly 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13

Shaft, carriage ass’y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13

Main Assembly 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14

Shaft holder, adjusting roller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14

Main Assembly 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15

Shaft, carriage guide ass’y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15

Main Assembly 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15

Spring, belt tension ass’y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15

Main Assembly 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-16

Detector sub-ass’y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-16

Main Assembly 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-17

Radiating plate, carriage motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-17

Main Assembly 12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-18

FFC, print head ass’y ( Single-color Print Version only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-18

FPC, print head ass’y (2-color Print Version only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-19

Main Assembly 13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-20

Print head ground plate and Print head unit (Single-color Print Version only) . . . . . . . . . . . . . . . . . . . . . . . . . . 5-20

Print head unit (2-color Print Version only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-21

Main Assembly 14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-23

Fame, ribbon knob and Frame, ribbon ass’y (Single-color Print Version only) . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-23

Main assembly 15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-24

Fixing plate, cover, left and Fixing plate, cover, right (2-color Print Version) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-24

Main Assembly 16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-25

Earth plate, ribbon frame (2-color Print Version only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-25

Main Assembly 17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-26

Frame, ribbon ass’y, Spring, ribbon frame and Fixing plate, ribbon frame (2-color Print Version only) . . . . . . 5-26

Main Assembly 18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-27

Thumb-screw and Cover, head (2-color Print Version only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-27

Main Assembly 1 (Case Unit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-28

TM-U200D/U200PD Technical Manual

Rev. B -3

CONFIDENTIAL

Plate, cutter, lower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-28

Main Assembly 2 (Case Unit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-29

Plate, upper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-29

Main Assembly 3 (Case Unit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-30

Main circuit board ass’y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-30

Main Assembly 4 (Case Unit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-32

Inserting the cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-32

Main Assembly 5 (Case Unit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-32

Case, lower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-32

Main Assembly 6 (Case Unit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-34

Manual cutter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-34

Main Assembly 7 (Case Unit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-35

Paper roll receive rollers, Case, upper, Roller, guide and Switch panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-35

Main Assembly 8 (Case Unit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-37

Interface circuit board ass’y and Connector plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-37

Main Assembly 9 (Case Unit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-38

Plate, lower, Cover, ROM, and Rubber foot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-38

Main Assembly 10 (Case Unit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-40

Caution seal AB (Single-color Print Version only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-40

Main Assembly 11 (Case Unit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-41

Cover, main and Hinge ass’y (There are two type printers, which are either with or without the

Hinge ass’y) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-41

Near-end detector ass’y(N.E-U200); (optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-43

Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-45

Platen gap adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-45

Appendix

RS-485 Serial Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

XON/XOFF Transmit Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-4

Data Format When Using RS-485 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-4

Main Circuit Board A Parts Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-6

Main Circuit Board C Parts Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-7

RS-232 Serial Interface Circuit Board Parts Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-8

IEEE 1284 Parallel Interface Circuit Board Parts Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-9

RS-485 Serial Interface Circuit Board Parts Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-10

Main Circuit Board C Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-12

RS-232 Serial Interface Circuit Board Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-13

IEEE 1284 Parallel Interface Circuit Board Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-14

RS-485 Serial Interface Circuit Board Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-15

Printer Mechanism Unit Overall Exploded Diagram (Single-color Print Version) . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-16

Printer Mechanism Unit Overall Exploded Diagram (2-color Print Version) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-17

Case Unit Overall Exploded Diagram (Single-color Print Version) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-18

Case Unit Overall Exploded Diagram (2-color Print Version) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-19

Printer Mechanism Unit Lubrication Points Diagram (Single-color Print Version) . . . . . . . . . . . . . . . . . . . . . . . . . . . A-20

Case Unit Lubrication Points Diagram (2-color Print Version) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-21

Case Unit Lubrication Points Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-22

-4 Rev.B

CONFIDENTIAL

Chapter 1

Features and General Specifications

TM-U200D/U200PD Technical Manual

FEED button

ERROR LED

PAPER OUT LED (PAPER OUT/PRESS FEED)

Power supply connector

Drawer kick-out conne cto r

Frame ground screw

Interface connector

Frame ground screw

Figure 1-1 TM-U200D/U200PD appearance

Power switch

POWER LED

P-ROM

DIP switches

Rev. B Features and General Specifications 1-1

CONFIDENTIAL

Features

Printing Specifications

Printing method : Serial impac t dot-matrix Head wire configuration: 9-pin serial type

0.353 mm (0.014")

0.29 mm (0.01")

(wire diameter)

0.317 mm (0.012")

Figure 1-2 Dot configuration

Dot pitch: 0.353 mm (1/72") Dot wire diameter 0.29 mm (0.01") Printing direction: Bidirectional logic seeking Printing width: 63.34 mm (2.49") Line feed: 4.23 mm (1/6"): default setting

Programmable in units of 1/144 inch by using commands.

Paper feed method Friction feed Paper feed speed: Approximately 4.17 inches/second (25 lines/second) during

continuous paper feeding

Characters per line: See the table in the next page. Characters per inch: See the table in the next page. Total dot count (horizontal

direction)

7 x 9 font: 400 half-dot positions per line 9 x 9 font: 400 half-dot positions per line

Printing speed Approximately 3.5 lines/second (40 columns, 16 CPI)

Approximately 6.4 lines/second (16 columns, 16 CPI)

NOTE:If the printing duty ratio is too high, the operation of the print head is stopped by the duty limit. In such

circumstances, the printing speeds shown above cannot be guranteed.

When select red-color or 2-colors(b lack and red) printing, the printing speed g oe s dow n co mpa red with black-color printing. It is caused by the switching operation in the printer.

1-2 Features and General Specifications Rev.B

CONFIDENTIAL

CPI = Characters per inch

Character dimensions, characters per inch, characters per line

TM-U200D/U200PD Technical Manual

Character Structure

Horizontal x Vert i cal

7 x 9

9 x 9

7 x 9

9 x 9

NOTE: The default font is 7 x 9; the dot spacing between characters is either 3 half dots or 2 half dots depending

on the setting of DIP switch 2-1.

Character

Structure

Character Set

ANK

Graphics

ANK

Graphics

ANK

Graphics

ANK

Graphics

Character

Dimensions

WxH

1.2 x 3.1 mm (.047 x .122")

1.7 x 3.1 mm (.070 x .122")

1.6 x 3.1 mm (.063 x .122")

2.0 x 3.1 mm (.079 x .122")

1.2 x 3.1 mm (.047 x .122")

1.6 x 3.1 mm (.063 x .122")

1.9 x 3.1 mm (.075 x .122")

Dot Spacing

Between

Characters

3 half-dots 40 16

04016

3 half-dots 33 13.3

0 33 13.3

2 half-dots 42 17.8

0 42 17.8

2 half-dots 35 14.5

0 35 14.5

Characters Per

Line (CPL)

Characters Per

Inch (CPI)

2color printing. Black and red colors are selectable. (2-color Print Version only)

Character Specifications

Character set:

Character structure:

Alphanumeric: 95 Internat ional: 32 Graphics: 128 x 8 pages

7 x 9 with 400 half-dot positions per line 9 x 9 with 400 half-dot positions per line

Rev. B Features and General Specifications 1-3

CONFIDENTIAL

0.353 mm (0.014")

2.4 mm (0.094")

1.24 mm (0.049")

1.59 mm (0.063")

3.1 mm (0.122")

Figure 1-3 Character size (7 x 9 font example)

1-4 Features and General Specifications Rev.B

CONFIDENTIAL

Paper

Paper types: Paper roll: Plain paper

Paper roll width: 76 ± 0.5 mm (2.99 ± .020")

TM-U200D/U200PD Technical Manual

Pressure-sensitive paper

Paper roll maximum

83 mm (3.27")

diameter: Paper roll core: Unless there is an optional near-end detector, you cannot use a

paper roll where the core and the paper are glued together.

Normal paper: Thickness: 1 sheet: 0.06 to 0.085 mm (.0024 to .0034")

Weight: 52.3 to 64 g/m

(13.9 to 17 lbs) (45 to 55 kg/

1000sheets/1091 x 788)

Pressure-sensitive paper Original 1 sheet + up to two copy sheets

Thickness: 1 sheet: 0.05 to 0.08 mm (.0020 to .0031")

Total thickness: 0.2 mm (.0079") or less Recommended paper: Mitsubishi - Carbonless paper (blue) Top and middle sheets: N40Hi (paper thickness: 0.06 mm [.0024"],

weight: 47.2 g/m

[12.6 lbs])

Bottom sheet: N60 (paper thickness: 0.08 mm [.0031"],

[18.1 lbs])

Copy capability and ambient temperature for

weight: 68.0 g/m

Copying capability is influenced by the ambient temperature. Printing must be performed under these conditions:

printing:

Original + 1 copy: 5° to 50° C (50° to 104° F) Original + 2 copies: 10° to 40° C (41° to 122° F)

Rev. B Features and General Specifications 1-5

CONFIDENTIAL

5.9 mm (0.23")

Cutting position (manual cutter)

20.2 mm (0.79") (*1)

(*2)

63.34 mm (2.49")

6.76 mm (0.27")

Maximum of 200 dots, 400 positions

76 mm (2.99")

Figure 1-4 Printing area

(*1) This dimension shows the distance from the manual cutter to the printing position. (*2) The values shown for the printing area are the values calculated (between dot centers) according to the wire

diameter (0.29 mm [.011

]).

Paper Roll Supply Device

Supply device:

Drop-in loading

Receive Buffer

Either 1 KB or 40 bytes selectable by DIP switches.

1-6 Features and General Specifications Rev.B

CONFIDENTIAL

Electrical Specifications

Power supply: One of the following five AC adapters is included, depending on

the specifications:

AC adapter specifications

Settings and shipment

Japan 100V ± 10% 50/60 Hz PA-6508 North America 120V ± 10% 60 Hz PB-6509 Europe (Germany) 230V ± 10% 50 Hz PB-6510 Europe (U.K) 230V ± 10% 50 Hz PA-6511 Australia 140V ± 10% 50 Hz PA-6513

TM-U200D/U200PD Technical Manual

Input voltage range

Model name

Power consumption (except when driving

Mean: Average 43 W Stand-by: Average 6 W

drawer kick-out):

Ribbon Cassette

Ribbon cassette specifications

Model number Color Ribbon life (*1)

ERC-38 (P) Purple 4 million chara c ters (under contin u ous printing at 25° C [7 7 ° F] ) ERC-38 (B) Black 3 million characters (under contin u ous printing at 25° C [7 7 ° F] )

ERC-38 (B/R)

(*1) The ribbon life is based on the following conditions:

Character font: 7 x 9 font (with descenders) Printing pattern: ASCII 96-character rolling pattern. Refer to the specification published by EPSON for the

NOTE: Malfun ctions and other problems may occur if other than the sp ecified ribbo n ca ssette is used.

Black and Red

printing pattern example.

Black: 1.5 million characters (under conti nuo us p rinting at 25° C [77° F]) Red : 750,000 characters (under continuous printing at 25° C [77° F])

Rev. B Features and General Specifications 1-7

CONFIDENTIAL

External Dimensions and Weight

Height: 133 mm (5.19") Width: 160 mm (6.25") Depth: 248 mm (5.04") Weight: Approximately 2.2 kg (4.85 lbs) Color: EPSON standard gray.

Environmental Specifications

Temperature: Operating: 0° to 50° C (32° to 122° F)

At 34° C (93° F) or higher, there are humidity restrictions; please see the figure below.

Storage: -10° to 50° C (14° to 122° F) (except paper and ribbon)

Humidity: Operating: 10% to 90% RH (non-condensing)

Storage: 10% to 90% RH (non-condensing, except paper and ribbon)

90 80

Relative Humidity [%RH]

10 0

Operating Temperature Range

10 20 30

34 C, 90%

40 C, 65%

50 C, 35%

Environment Temperature [C]

Figure 1-5 Operating temperature and humidity range

Vibration resistance: When packed:

Frequency: 5 to 55 Hz Acceleration: 2 G Sweep: 10 minutes (half cycle) Duration: 1 hour Directions: x, y, and z

1-8 Features and General Specifications Rev.B

CONFIDENTIAL

Impact resistance: When packed:

Reliability

Printer mechanism: MCBF: 5,000,000 lines (excluding the print head) Life: Approximately 7,500,000 lines (The printer is defined to have

TM-U200D/U200PD Technical Manual

Package: EPSON standard package Height: 60 cm (23.62") Directions: 1 corner, 3 edges, and 6 surfaces

When unpacked:

Height: 5 cm (1.97") Directions: Lift one edge and release it (for all 4 edges).

reached the end of its life when it cannot function property because of the main parts [motors, solenoids, frames, shafts, etc.] wearing out.)

Print head life: 100,000,000 characters (when printing an average of two dots/

wire/character)

Safety and EMI Standards Applied

(EMC is measured with the packaged AC adapter) For Europe: CE Marking: EN55022, EN50082-1, EN45501

Safety standards: TÜV

For USA: EMI: FCC class A

Safety standards: UL1950-2TH-D3 C-UL

For Japan: EMI: VCCI Class 1

Printer Installation Stance

Install the printer horizontally.

The printer must also be installed so that it d oes not move or vibr ate duri ng paper cutting or the drawer kick-out operation.

Fastening tape is available as an option.

Rev. B Features and General Specifications 1-9

CONFIDENTIAL

Hardware Configuration

Paper detector switch sub-ass’y

Print head unit

Detector sub-ass’y

Motor, paper feed

Motor, carriage

Paper roll near-end detector(N.E-U200); (optional)

Interface circuit board

Main circuit board

Figure 1-6 TM-U200D/U200PD main unit configuration

1-10 Features and General Specifications Rev.B

CONFIDENTIAL

Main Unit Specifications

Motor, Paper Feed

Type: 4-phase, PM type stepping motor Drive voltage: 24V DC ± 10% Winding resistance: 58 Ω ± 2.9 Ω at 25° C (77° F), per phase Current consumption: Peak: 1.1 A in worst case

Motor, Carriage

Type: 4-phase, PM type stepping motor

TM-U200D/U200PD Technical Manual

Average: 200 mA at 24V DC, 25° C (77° F), 600 pps

350 mA maximum

Drive voltage: 24V DC ± 10% Winding resistance: 39.5 Ω ± 1.9 Ω at 25° C (77° F), per phase Current consumption: Peak: 1.5 A maximum

Average: 400 mA at 24V DC, 25° C (77° F), 952 pps

600 mA maximum

Print Head Unit

Solenoid number: 9 Winding resistance 15.6 Ω ± 5 % at 25° C (77° F), per phase Drive voltage: 24V DC ± 10%

Detector Sub-ass’y

Type: Photo sensor Voltage: 5V DC ± 5% Output level: Low when the carriage home position is detected

Rev. B Features and General Specifications 1-11

screw

CONFIDENTIAL

Paper Detector Switch Sub-ass’y

Type: Microswitch Voltage: 5V DC ± 5% Output level: High when paper end is detected

Near-end Detector (N.E.-U200); (Optional)

Type: Microswitch Voltage: 5V DC ± 5% Output level: Low when a paper near-end is detected

Connectors

Frame ground screw

Interface connector

Frame ground

screw

Interface connector

Interface Connector

See the interface section.

Frame ground screw

Drawer kick-out connector

Power supply connector

Figure 1-7 Connector panel (serial interface)

Frame ground

Drawer kick-out connector

Power suppl connector

Figure 1-8 Connector panel (parallel interface)

1-12 Features and General Specifications Rev.B

CONFIDENTIAL

Power Supply Connector

This connector is used to connect the printer to an external power source.

Pin assignments: See the table below. Model (printer side): Hosiden TCS7960-532010 (or equivalent)

Power supply connector pin assignments

Pin Number Signal Name

1 +30V DC unregulated 2GND 3NC Shell Frame GND

NOTE: Be sure to ground the frame ground (FG) screw on the board at the bottom of the unit. Ground wire terminal

hole diameter: 3.2mm (.13"). Ground wire thickness: AWG 18 or equivalent.

TM-U200D/U200PD Technical Manual

Drawer Kick-Out Connector

A pulse specified by the ESC p command is output to the drawer kick-out connector. The host can confirm the status of the input signal by using the GS a, GS r, or DLE EOT commands.

Drawer kick-out connector pin assignments

Pin Number Signal name Direction

1Frame GND 2 Drawer kick-out drive signal 1(*2) Output 3 Drawer open/close signal (*1) Input 4 +24V DC 5 Drawer kick-out drive signal 2 (*2) Output 6 Signal GND -

(*1) Drawer open/close signal

The host computer can check the drawer open/close status with the DLE EOT, GS a, and GS r commands.

Input signal level: LOW = 0 V

HIGH = 2 to 5V (at connector pin 3)

Rev. B Features and General Specifications 1-13

CONFIDENTIAL

(*2) Drawer kick-out drive signal

Output signal: Voltage = Approximately 24V DC

Output waveform: Outputs the waveforms in Figure 1-8 to pins

CAUTION:

To avoid an overcurrent, the resistance of the drawer kick-out solenoid must be 24 Ω or more.

Current = 1 A or less

2 and 5 of the connector. t1 (ON time) and t2 (OFF time) are specified by

ESC p

t1 x 2 ms

Figure 1-9 Drawer kick-out drive signal output waveform

NOTES:

❏ Two driver transistors cannot be energized simultaneously . ❏ The drawer drive duty must be as shown below:

ON time

(ON time + OFF time)

❏ Be sure to use the printer power supply (connector pin 4) for the drawer power source.

t2 x 2 ms

≤

0.2

1-14 Features and General Specifications Rev.B

CONFIDENTIAL

Interface

RS-232 Serial Interface

Data transmission: Serial (compatible with RS-23 2)

Synchronization: Asynchronous

Handshaking: DTR/DSR or XON/XOFF control

Signal levels: MARK = -3 to -15 V: Logic 1/OFF

Baud rates: 4800, 9600 bps

Data word le ngths: 7 or 8 bits

Parity settings: None, even, odd

TM-U200D/U200PD Technical Manual

SPACE = +3 to +15 V: Logic 0/ON

Stop bits: 1 or more

Connector: Female D-SUB 25-pin connector

NOTES:

❏ Handshaking, data word length, baud rate, and parity depend on DIP switch settings. ❏ Data transmitted from the printe r has 1 stop bit (fixed).

Rev. B Features and General Specifications 1-15

CONFIDENTIAL

Interface Connector Pin Assignments

TM-U200D printer status and signals

Pin number Signal name I/O Function

1FG-Frame ground 2 TXD O Transmit data 3 RXD I Receive data 4 RTS O Same as the DTR signal 6 DSR I This signal indicates whether the host compu ter can rec eive dat a.

7 SG - Signal ground 20 DTR O 1) When DTR/DSR control is selected, this signal indicates whether the printer is

SPACE indicates that the host computer can receive data, and MARK indicates that the host computer cannot receive data. When DTR/DSR control is selected, the printer transmits data after confirming this signal (except when transmitting data by DLE EOT and GS a). When XON/XOFF control is selected , the pri nt er do es not check t hi s signal. Changing the DIP switch setting enables this signal to be used as a reset signal for the printer. The printer is reset when the signal remains MARK for 1 ms or more.

busy. SPACE indicates that the printer is ready to receive data, and MARK indicates that the printer is busy. The busy condition can be changed by using DIP SW 1-8 as follows:

DIP SW 1-8 status

Printer

1. During the period from when the power is turned on (including resetting using the interface) to when the printer is ready to receive data.

2. During the self-test BUSY BUSY

3. During paper feeding using the paper feed button. - BUSY

Off-line

4. When the printer stops printing due to a paper-end. - BUSY

5. When an error has occurred. - BUSY

6. When a temporary abnormality occurs in the

power supply voltage

7. When the receive buffer becomes full. (*1) BUSY BUSY

20 DTR O 2) When XON/XOFF co n tro l is sel ec t ed :

25 INIT I Changing the DIP switch setting enables this signal to be used as a reset signal

This signal indicates whether the printer is correctly connected and is ready to receive data. SPACE indicates that the printer is ready to receive data. The signal is always SPACE except in the following cases: ❏ During the period after the power is turned on until the printer is ready to

receive data.

❏ During the self test.

for the printer (see the DIP switch settings in the “Buttons and Switches” section of this chapter). The printer is reset when the signal remains SPACE for 1 ms or more.

ON OFF

BUSY BUSY

-BUSY

1-16 Features and General Specifications Rev.B

CONFIDENTIAL

NOTES:

❏ When the remaining space in the receive buffer is 16 bytes, the printer becomes buffer-full. This status continues

until the space in the receive buffer increases to 32 bytes.

❏ The printer ignores the data received when the rem ain in g space in the recei ve buffer is 0 bytes.

On-line/Off-line switching

The printer does not have an on-line/off-line button. The printer goes off-line under the following conditions:

Between the time when the power is turned on (including reset using the interface) and

❏

when the printer is ready to receive data.

During the self-test.

❏

During pa per feeding using the PAPER FEED button.

❏

Between the time when the printer stops printing due to a paper-end and when the on-line

❏

recovery wait time finishes after loading paper (in cases when empty paper supply is detected by either the paper roll end detector or the paper roll near-end detector with a printing halt feature set enabled due to paper shortage by ESC c 4).

TM-U200D/U200PD Technical Manual

When an error has occurred.

❏

XON/XOFF transmit timing

When XON/XOFF control is selected, the printer transmits XON or XOFF signals as follows.

Printer status

• When the printer goes on line after turning on th e pow er or

XON transmission

XOFF transmission

(*1) XON is not transmitted when the receive buffer is full. (*2) XOFF is not transmitted when the receive buffer is full.

NOTE: The XON code is <11>H and th e XOFF code is <13>H.

reset using interface.

• When the receive buffer is released from the buffer full state.

• When the printer switches from off line to on line (*1).

• When the printer recovers from an error through a command.

• During an error condition

• When the receive buffer becomes full (*2).

DIP SW 1-8 stat us ON OFF

Transmission Transmission

----

Transmission Transmission

----

Transmission Transmission Transmission Transmission Transmission

Transmission Transmission

Rev. B Features and General Specifications 1-17

CONFIDENTIAL

Serial interface connection example

Host

TXD DSR CTS RXD DTR FG SG

NOTES:

❏ Set the handshaking so that the transmit data can be received. ❏ Transmit data to the printer after turning on the power and initializing the printer.

RS-485 Serial Interface (option)

Refer to the Appendix for details.

IEEE 1284 Parallel Interface

Printer

RXD DTR RTS TXD DSR FG SG

Specification

Data transmission: 8-bit parallel

Synchronization: Externally supplied nStrobe signals

Handshaking: nAck and Busy signals

Signal levels: TTL compatible

Connector: 57RE-40360-830B (DDK) or equivalent (IEEE 1284 Type B)

Reverse communication (Printer Host): Nibble or Byte Mode

Reverse Mode (Data Transmission from Printer to Host)

The STATUS data transmission from the printer to the host is proceeded in the Nibble or Byte mode.

This mode allows data transmission from the asynchronous printer under the control of the host. Data transmissions in the Nibble Mode are made via the existing control lines in unists of four bits (Nibble). In the Byte Mod e, data transmissions are proceeded by making the eight-bit data lines bidirectional.

1-18 Features and General Specifications Rev.B

CONFIDENTIAL

The both modes fail to be proceeded concurrently with the Compa tibility Mode, ther eby causing half duplex transmission. The IEEE 1284 Nibble/Byte Modes are under development in the form of draft and may be subject to change.

TM-U200D/U200PD Technical Manual

Rev. B Features and General Specifications 1-19

CONFIDENTIAL

Interface Connector Pin Assignments

TM-U200PD printer status and signals

Pin number Source Compatibility Mode Nibble Mode Byte Mode

1 Host nStrobe HostClk HostClk 2 Host/Ptr Data0(LSB) Data0(LSB) Data0(LSB) 3 Host/Ptr Data1 Data1 Data1 4 Host/Ptr Data2 Data2 Data2 5 Host/Ptr Data3 Data3 Data3 6 Host/Ptr Data4 Data4 Data4 7 Host/Ptr Data5 Data5 Data5 8 Host/Ptr Data6 Data6 Data6 9 Host/Ptr Data7(MSB) Data7(MSB) Data7(MSB) 10 Printer nAck PtrClk PtrClk 11 Printer Busy PtrBusy/Data3,7 PtrBusy

12 printer PError

13 Printer Select Xflag/Dat a1,5 Xflag 14 Hostr nAutoFd HostBusy HostBusy 15 NC ND ND 16 GND GND GND 17 FG FG FG 18 Printer Logic-H Logic-H Logic-H 19-30 GND GND GND 31 Host nInit nInit nInit 32 Printer nFault nDataAvail/Data0,4 nDataAvail 33 GND ND ND 34 Printer DK_STATUS ND ND 35 Printer +5V ND ND 36 Host nSelectIn 1284-Active 1284-Active

AckDataReq/ Data2,6

AckDataReq

NOTES:

❏ A prefix "n" to signal names refers to "L" active signals. To the host provided with none of the sig nal lin es listed

above, both-w ay communication fails .

❏ For interfacing, signal l ines shall use twisted pair cables with the return side s conne cted to signal ground level. ❏ Interfacing conditions shall be all based on the TTL level to meet the characteristics described below. In addition,

both rise time and fall time of each signal shall be 0.5Js or less.

❏ Data transmission shall not ignore the signal nAck or Busy. An attempt to transmit data with either signal, nAck or

Busy, ignored can cause lost data. (Data transmissions to the printer shall be made after verifying the nAck signal or while the Busy signal is at the "L" level.)

❏ Interface cables shall be as minimum requ ired sho rt in leng th as po ssibl e.

NC: No Connect ND: No Defined

1-20 Features and General Specifications Rev.B

CONFIDENTIAL

Switching between on-line and off-line

The printer is not equipped with any on-line/off-line switch. The printer is placed into off-line status in either of the followings:

❏ When the power is turned on or until the printer becomes ready for data transmission after it

is initialized by the reset sign al (nInit) from the interface.

❏ In the process of self-test. ❏ In the process of paper feeding using the paper feed switch. ❏ Between the time when the printer stops printing due to a paper-end and when the on-line

recovery wait time finishes after loading paper. (in cases when empty paper supply is detected by either the paper roll end detector or the paper roll near-end detector with a printing halt feature set enabled due to paper shortage by ESC c 4).

❏ When an error has occurred.

Reception of status from the printer through the bid ire ctional parallel interface

In the bidirectional parallel interface specifications, the printer status transmission is available by using the both-way communicati on facility in the Ni bble/By te Modes in acco rdance wi th the IEEE 1284. In this case, different from in the RS-232 serial interface specifications, the real-time interruptions from the printe r to the host are disabled and thus precau tions must be tak en to the followings.

TM-U200D/U200PD Technical Manual

❏ Allowable capacity of the printer internal buffer is 100 bytes (except ASB status). The status

signals exceeding this capacity will be discarded. To prevent possible loss of status, the host shall be ready for data acception (Reverse Mode).

❏ When ASB is used, the host is preferably in the wait state for data acception (Reverse Idle

Mode). When this state is not available, the host shall enter the Reverse Mode to always monitor the presence of data.

❏ When ASB is used, preference shall be given to the ASB status for transmission over the

other status signals. Any accumulated ASB status signals left for transmission from the last to the newest ASB status transmission shall be transmitted together at a time as one ASB status showing the presence of change, followed by the lastest ASB status.

Example: In the normal (wait) state, the ASB status is configured as follows:

First Status Second Status Third Status Fourth Status 0001 0000 0000 0000 0000 0000 0000 0000

When a sequence of operations are proceeded, the PAPER FEED button is pressed and released, the following pieces of data are accumulated.

Rev. B Features and General Specifications 1-21

CONFIDENTIAL

First Stat us Second Status Third Status Fourth Status

➀ 0001 0000 0000 0000 0000 0000 0000 0000

➁ 0101 1000 0000 0000 0000 0011 0000 0000

➂ 0001 0000 0000 0000 0000 0011 0000 0000

When the ASB status is received following this, a total of eight (8) bytes of ASB will be transmitted as follows: Accumulated ASB (

Accumulated ASB (➀ + First Status Second Status Third Status Fourth Status The latest ASB (➂)

Fourth Status

➀+➁+➂)

Near end detection

FEED button is pressed

FEED button is released

First Status Second Status Third Status Fourth Status

+➁+➂) 0101 0000 0000 0000 0000 0000 0000 0000

0001 0000 0000 0000 0000 0000 0000 0000

Notes on setting DIP switc h 1-8 to ON

The printer mechanism stops but does not become busy when an error has occurred, printing stops due to a paper end, or paper is fed using the FEED button.

When setting DIP switch 1-8 to ON to enable handshaking with the print e r, be sure to chec k the printer status with GS a and ASB function. In this setting, the default value of n for GS a is 2. The printer automatically transmits the printer status, depending on on-line/off-line changes.

When using DLE EOT and DLE ENQ, be sure that the receive buffer does not become full.

When using a host that cannot transmit d ata when the p ri nter is busy and if an er ror occu rs,

❏

DLE EOT and DLE ENQ cannot be used when printer is busy due to receive buffer-full state.

If the host can transmit data when the printer is busy and, the receive buffer becomes full

❏

while the host is sending bit-image data, a DLE EOT or DLE ENQ command used while sending bit-image data is processed as bit-image data, not as a command. Secondly, any data transmitted when the receive buffer is full may be lost.

Example: Check the printer status using GS r after tr ansmit ti ng each line of data and use the 1K byte receive buffer. Transmit one line of data so that the receive buffer does not become full.

1-22 Features and General Specifications Rev.B

CONFIDENTIAL

Buttons and Switches

Power Switch

Type: See-saw type Function: The power switch turns the power on or off.

Note:

Turn on the power only after connecting the power supply. RAM is completely initialized when the printer is turned off using the power switch.

Panel Button

The panel button is enabled or disabled by the ESC c 5 command. This button is inactive if it is disabled.

Feed (FEED) button: Type: Non-locking push button

TM-U200D/U200PD Technical Manual

Function: Feeds paper based on the line feed amount set by ESC 2

and ESC 3.

Note:

The ESC c 5 command enables or disables the panel button. When disabled, the button will not function. However, when loading a paper roll, you can feed paper with the FEED button during the paper loading waiting time if the paper loading waiting time is set by GS z 0. Press the FEED button again after the PAPER OUT LED starts blinking to return the printer to the on-line state.

Rev. B Features and General Specifications 1-23

CONFIDENTIAL

DIP Switches

Serial interface (RS-232 an d RS -485 (option))

The DIP switches of are located at the bottom of the case.

DIP switch 1

DIP Switch Function ON OFF

1 Data receive error Ignored Prints “?” 2 Receive buffer capacity Data buffer 40 bytes Data buffer 1 KB 3 Handshaking XON/XOFF DTR/DSR 4 Data word length 7 bits 8 bits 5 Parity check Yes No 6 Parity selection Even Odd 7 Baud rate selection 4800 bps 9600 bps

8 Busy condition When the receive buffer is full

When the receive buffer is full at an off-line status

DIP switch 2

DIP Switch Function ON OFF

Selects spacing between characters. See

3 I/F pin 6 reset signal Enabled Disabled 4 I/F pin 25 reset signal Enabled Disabled

NOTES:

❏ Changes in DIP switc h setti ng s (ex cluding switche s 2-3 and 2-4, whi c h ar e I/F reset sign als) are recognized only

when the printer power is turned on or reset usin g the in t erface . If the DIP swit ch setting is cha nged afte r the printer power is turned on, the change does not take effect until the printer is turned on again or reset.

❏ Do not change the settings of DIP switches 2-3 and 2-4 when the printer power is on.

the table on page 1-3 for the number of characters per line for each setting.

For internal use only Setting must not be changed. (Fixed to OFF.)

2 half dots 3 half dots

Parallel interface (IEEE 1284)

The DIP switches of are located at the bottom of the case.

DIP switch 1

DIP Switch Function ON OFF

1 Auto line feed Enabled D isabled 2 Receive buffer 40 bytes Approximately 1K byte

3-7 Undefined

8 Busy condition

Receive buffer-full Scanning data

Off-line Receive buffer-full Scanning da ta

1-24 Features and General Specifications Rev.B

CONFIDENTIAL

DIP switch 2

DIP Switch Function ON OFF

2 Internal use (*1) 3Undefined 4 I/FnInit reset signall Enabled Disabled

NOTES:

❏ Do not change the setting of DIP switch 2-2 (fixed to OFF). ❏ Changes in DIP swit ch settings (excludin g sw itc h 2 -4 , wh ich is I/F reset sign al ) are recognized only wh en the

printer power is turned on or reset using the interface. If the DIP switch settings are changed after the printer power is turned on, the change does not take effect until the printer is turned on again or reset (excluding switch 2-4).

Print colum n selection 7 ✕ 9 font/9 ✕ 9 font

TM-U200D/U200PD Technical Manual

42CPL/35CPL 40CPL/33CPL

Rev. B Features and General Specifications 1-25

CONFIDENTIAL

Panel LEDs

Power (POWER) LED: Green

Off: Power supply of +24V is not sta ble.

On: Power supply of +24V is stable.

Paper roll near -end (PAPER OUT) LED:

(*1) Near-end detector is an option.

Error (ERROR) LED: Red

Red

On: Paper roll near-end is detected. (*1)

Off: Adequate paper remains on the paper roll (normal

Blinking: Waitin g for restarting test printing on paper roll or

On: Off-line (except during paper feeding using the

Off: Normal operation.

Blinking Error state. (Refer to the Error types and

condition).

for return to on-line status after automatic paper feeding.

FEED button and during the self-test).

countermeasures in Chapter 4.)

Self-test

Performing the Self Test

The printer has a self-test function that checks the following:

❏ Control circuit functions ❏ Printer mechanisms ❏ Print quality ❏ Control ROM version ❏ DIP switch settings.

See Chapter 4 for instructions on running a self-test.

1-26 Features and General Specifications Rev.B

CONFIDENTIAL

Error Processing

Printer Operation When an Error Occurs

The printer executes the following operations upon detecting an error:

❏ All mechanical operations stop ❏ Goes off-line (if DIP switch 1-8 is set to OFF) ❏ The ERROR LED blinks.

Error recovery

The TM-U200D recovers from an error state when you turn off the power, correct the error, and then turn the power back on.

Data Receive Error

If one of the following er ro rs o ccur s, the pr int er prints “?” or ignores t he d ata , d epend ing on the setting of DIP switch 1-1:

TM-U200D/U200PD Technical Manual

❏ Parity erro r ❏ Framing error ❏ Overrun error.

Buffer Full Printing

When subsequent data is received after the printer processes one line of data in the print buffer, the printer automatically prints the processed data and feeds the paper one line. When the printer detects no paper, it does not print until new roll paper is loaded.

Detectors and Printing

When the printer detects a paper nea r-end, it stops or c ontinues pri nting, d ependin g on the ES C c 4 command setting. The roll paper detector always halts printing when there is no paper.

Rev. B Features and General Specifications 1-27

CONFIDENTIAL

Hexadecimal Dump

Hexadecimal Dump Function

This function prints the data transmitted from the host computer in hexadecimal numbers and in their corresponding characters.

Performing a Hexadecimal Dump

1. Turn the printer power off.

2. Set DIP switch 1-2 to on to select 40 bytes for the receive buffer capacity.

3. Turn the power on while pressing the FEED button.

4. Before finishing the initializat ion of the p rinter , release t he FEED button, t hen press the FEED

button again. The printer first prints "Hexadecim al Dump" on the paper roll, and prints the data received thereafter in hexadecimal numbers and their corresponding characters until the printer is turned off.

NOTES:

❏ "." is printed if no printable ASCII character corre s ponds to the data received. ❏ During the hexadecimal dump, all commands except DLE EOT and DLE E N Q are disabled. ❏ Insufficient print data to fill the last line can be printed by setting the printer off line. (See to On-line/off-line

switching.)

Sample hexadecimal dump

Hexadecimal Dump

1B 21 00 1B 26 02 40 40 1B 69 : . ! . . & . @ @.i 1B 25 01 1B 63 34 00 1B 30 31 : . % . c4 . .. 01

41 42 43 44 45 46 47 48 49 4A : ABCDEFGHIJ

Options

Paper roll near end detector

❏

External power supply PS-170

❏

Printer fastening tape (DF-10)

❏

RS-485 serial interface

❏

1-28 Features and General Specifications Rev.B

CONFIDENTIAL

External Power Supply PS-170

Specifications

100V, 120V, or 230V (specified at time of purchase)

Input Conditions

Input voltage (rating) 90 to 264 V

Frequency (rating) 50 to 60 Hz +/-3Hz

Input current (rating) less than 100 VA

AC switch None

TM-U200D/U200PD Technical Manual

(100VAC - 10% to 230VAC + 15%)

108 V AC to 132 V (120V type)

Energizing LED None

Output specifications

Output voltage (rating) 24 VDC ±5%

Output voltage (rating ) 2.0 A

Output electric power (rating)

Output peak current 4.5 A (within 300 msec)

Compliance to safety regulation

The following standards is applied only to the equipments with marks and statements

UL/C-UL/TÜV

NOTE: Use only the EPSON PS-170 power supply to avoid damage to the printer and the power supply.

48 W

Rev. B Features and General Specifications 1-29

CONFIDENTIAL

Chapter 2

Mechanism Configuration and Operating Principles

Printer Mechanism Operating Principles

The printer mechanism M-U200 mounted in the TM-U200D/U200PD is composed of four mechanisms: print, paper feed, ribbon feed, and detector. In addition to the above four mechanism, the 2-color Print Version has a ribbon switch mechanism.

TM-U200D/U200PD Technical Manual

(Single-color Print Version)

(2-color Print Version )

Figure 2-1 M-U200D

Rev. B Mechanism Configuration and Operating Principles

CONFIDENTIAL

Print mechanism unit

The print mechanism unit consists of the parts shown in the figure below.

Pulley, belt

tension

Shaft, carriage guide

Carriage subass’y

Shaft, carriage

Earth plate, print head ass’y

Print head unit

Figure 2-2 Print mechanism unit

Belt

Frame, paper fee ass’y

Motor, carriage ass’y

FFC, print head

2-2 Mechanism Configuration and Operating Principles Rev.B

Paper roll

CONFIDENTIAL

Print head unit movement

When the Motor, carriage is driven and the Gear, carriage motor is moved in the direction of arrow B (forward rotation), the rotational power is conveyed to the Pulley, belt drive, then the belt. Next the Carriage sub-ass’y, which is fixed to the belt, is moved in the direction of arrow B.

When the Gear, carriage motor is rotated in the direction of arrow A (reverse rotation), the Carriage sub-ass’y is moved in the direction of arrow A.

TM-U200D/U200PD Technical Manual

Belt

Carriage sub-ass’y

Gear, carriage motor

Pulley, belt drive

Figure 2-3 Print head unit movement

Wire movement when a single dot is printed

When the specified print head drive pulse is input to the drive coil, the iron core is magnetized, and the actuating plate is pul led i n the d i rect ion of arr ow A. T his action pushes the wire toward the platen. When the wire strikes the ink ribbon and paper against the platen(*), a single dot is printed.

When the energizing of the drive coil is completed, the wire and actuating plate are returned to the standby position by the wire return spring and actuating plate spring.

(*) The “platen” is the portion of the Frame, paper feed being struck by the wires during printing.

Actuating plate

Wire return spring

Ink ribbon

Wire

Drive coil

Wire guide

Iron core

Platen

Figure 2-4 Printing

Rev. B Mechanism Configuration and Operating Principles

CONFIDENTIAL

Printing a character (9x9 font)

A character is printed by energizing the print solenoids with respect to the Carriage sub-ass’y portion (the reference timing for the print solenoids is the Motor, carriage phase switching signals). The print head unit is moved 0.317 mm (0.012”) (in approximately 1.05 ms) each time the Motor, carriage is rotated one step (7.5°).

To print character “2,” print solenoids 2 and 9 are energized first at the same timing as the Motor, carriage phase switching signal. Then, print solenoid 8 is energized at TnH (being delayed a half dot). The remaining print solenoids are energized correspondingly, and the character “2” is finally printed.

Motor, carriage phase switch timing

Print solenoid

Figure 2-5 Print timing chart

Tn+2Tn+1 Tn+3

TnH(4)

Tn+5Tn+4

TnH

1 2

3 4 5 6 7 8 9

2-4 Mechanism Configuration and Operating Principles Rev.B

CONFIDENTIAL

Paper Feed Mechanism Unit

The paper feed mechanism unit consists of the parts shown in the figure below.

Paper feeding is performed by driving the Motor, paper feed (stepping motor).

TM-U200D/U200PD Technical Manual

Roller, paper hold

Spring, paper hold

Shaft, paper hold roller

Figure 2-6 Paper feed mechanism unit

Roller, paper

Gear, paper feed reduction

feed ass’y

Paper feed, upper

Frame, paper feed ass’y

Motor, paper feed

Rev. B Mechanism Configuration and Operating Principles

CONFIDENTIAL

Paper loading (semi-automatic loading)

When the paper roll is manual ly inser te d in to the Roller , p aper feed , t he pa per det ecti on switc h in the paper path detects the paper, and semi-automatic loading (*) is executed.

(*) Semi-automatic loading is the function that automatically feeds the paper to the top of the Frame, paper feed assembly when the paper roll is inserted in the paper path when the main cover is open and the detector detects no paper.

Paper feeding

Spring, paper hold plate

Roller, paper hold

Paper

frame, paper feed

Paper guide, upper

Roller, guide

Case, upper

Roller, paper feed

Frame, base ass’y

Figure 2-7 Paper loading

Paper feeding is performed by conveying the rotational power of the Motor, paper feed to the gear of the Motor, paper feed through the Gear, paper feed reduction, Gear, paper feed , and Roller, pap er feed .

Since the Roller, paper feed and Roller, paper hold are pressed together, paper is advanced to the top of the Frame, paper feed assembly by the fr iction between the rubber of the Rol ler, paper feed and the Roller, paper hold .

2-6 Mechanism Configuration and Operating Principles Rev.B

CONFIDENTIAL

During printing, the Motor, paper feed is driven after each line is printed, causing the paper to be fed a specified amount. While the FEED button on the switch panel is pressed, the Motor, paper feed is driven and the paper roll is fed.

TM-U200D/U200PD Technical Manual

Paper roll

Roller, paper hold

Roller, paper feed

Gear, paper feed motor

Gear, paper feed reduction

Gear, paper feed

Figure 2-8 Paper feeding

Ribbon Feed Mechanism Unit

The ribbon feed mechanism unit consists of the parts shown in the figure below. The printer feeds the ribbon automatically as the Motor, carriage rotates .

Ribbon cassette

Gear, ribbon intermediate

Frame, ribbon assembly

Plate, ribbo n drive ass’y

Gear, ribbon transmission

Figure 2-9 Ribbon feed mechanism unit

Ribbon take-up ass’y

Rev. B Mechanism Configuration and Operating Principles

CONFIDENTIAL

Ribbon feeding

When the Motor, carriage rotates forward and the Gear, carriage motor rotates in the direction of arrow A, the Gear, ribbon intermediate and Gear, ribbon drive rotate in the directions of arrows B and C, respectively. This causes the Plate, ribbon drive to move in the direction of arrow D, with the Gear, ribbon intermediate shaft in the center, until the Gear, ribbon drive engages the Gear, ribbon transmission .

Since the Gear, ribbon transmis sion and the Gear, r ibbon take-up are always engaged , the Gear, ribbon take-up rotates in the direction of arrow E.

When the Motor, carriag e rot ates in the r everse d irect ion and t he Gear, ca rriag e motor rota tes in the direction of arrow F, t he Pl at e, ri bbon dr ive moves in the direction of arrow G, disengaging the Gear, ribbon drive from the Gear, ribbon transmission .

Therefore, the Ribbon take-up ass’y rotates in the direction of arrow E only when the Motor, carriage rotates forward. Then the ribbon feed and ribbon hold rollers in the Ribbon cassette , which are engaged with the Ribbon take-up ass’y , rotate and the ribbon is fed.

Gear, ribbon driv e

Gear, ribbon transmission

Gear, carriage motor

Figure 2-10 Ribbon feeding

Gear, ribbon intermediate

Ribbon take-up ass’y

Gear, ribbon take-up

2-8 Mechanism Configuration and Operating Principles Rev.B

CONFIDENTIAL

Detection Mechanism Unit

The detection mechanism unit consists of the home position detection, paper detection, and near-end detection (optional) mechanisms.

TM-U200D/U200PD Technical Manual

Paper detector

Detector

Figure 2-11 Detection mechanism unit

Home position detection mechanism

The home position detection mechanism consists of the detection protrusion at the left side of the Carriage sub-ass’y and the Detector sub assembly at the left side of the base frame. It determines the home position, identifies the carriage position, and detects Carriage sub-ass’y operation errors.

The Detector sub assembly consists of an LED and photo transistor. When the Carriage subass’y moves, the detection protrusion passes between the LED and photo transistor and blocks the optical axis of the photo transistor, changing the output level of the photo transistor.

The change in the output level is used as a signal to detect the movement of the Carriage subass’y.

Printer side

The light is blocked

+5V

The light is not blocked

High

Low

GND

Carriage sub-ass ’ y detection protru si on

Signal level at A

Figure 2-12 Home position detection diagram

Rev. B Mechanism Configuration and Operating Principles

CONFIDENTIAL

Paper detection mechanism

The paper detection mechanism is located in the paper path. The mechanism provides end detection of the paper roll and semi-automatic loading by detecting presence or absence of the paper roll when it is inserted. Since the paper detector switch sub assembly is a micro switch, it is always ON when the paper roll is loaded.

Near-end detection mechanism (optional)

The near-end detector ass’y consists of the Lever , N.E. detection and a microswitch detect or and is located on the right side of the Case, lower. This detector detects the amount of paper left on the paper roll.

The tip of the Lever, N.E. detection is always pressed against the edge of the paper roll by a spring inside the microswitch. Therefore, when there is a large amount of paper remaining on the roll, the Lever, N.E. detection is pressed against the side of the paper roll as depicted by the solid lines in the figure below. This keep s the microswitch tur ned on. When the amount of pape r left on the roll decreases below a predetermined amount, the tip of the Lever, N.E. detection no longer presses against the side of the rol l a nd mov es in t he d irecti on i ndi cat ed by the ar row int o the hole in the center of the roll core. This turns the microswitch off and generates a signal indicating that the paper roll is near its end.

Case, case

Paper roll

Paper roll center

Figure 2-13 N.E. detection mechanism

Microswitch

Lever, N.E. detection

Ribbon Switch Mechanism Unit

The ribbon switch mechanism unit consists of the Motor, carriage ass’y, Carriage sub-ass’y, Tension plate ass’y, Pulley, belt tension, Home position detector ass’y, Frame, ribbon ass’y, Spring, ribbon frame, Lever, ribbon switch, Lever, ribbon release and Spring, ribbon release. The mechanism unit is placed at the left and right of the Carriage sub-ass’y, the position of which is controlled by the number of Motor, carriage steps, with the home position as the reference position. It switches between t he bla ck and red r ibbon in t he r ibbon swi tch and ri bbon release areas outside the printing area.

2-10 Mechanism Configuration and Operating Pr inciples Rev.B

CONFIDENTIAL

Switching from Black to Red

When the Carriage, sub-ass’y (print head unit) moves in the E direction and reaches the ribbon switch area, the Lever, ribbon switch is pushed by the ribbon switch section and moved to position A (shown by the dotted lines). The Frame, ribbon ass’y is pushed upward by the Fr ame, ribbon push face, ribbon switch detent face falls into the Leve r, ri bbon switch hole o f the Fr ame, ribbon ass’y and the Frame, ribbon ass’y is set to the red position.

Releasing from Red to Black

When the Carriage sub-ass’y moves (in the D direction) and reaches the ri bbo n r elease area, the Lever, ribbon release is pushed by the ribbon release section, then portion C pushes the Frame, ribbon ass’y upwaed. At this time, the ribbon switch detent face is released from the Lever, ribbon switch hole of the Frame, ribbon ass’y, the Lever, ribbon switch is returned to Lever, ribbon switch position B (shown by the solid lines) by the spring power of the Spring, ribbon release. When the Carriage sub-ass’y moves in theE direction, the Frame, ribbon a ss’y and Lever, ribbon release are returned to their original positions by the spring power of the Spring, ribbon frame.

TM-U200D/U200PD Technical Manual

Range of ribbon switchRange of ribbon release

Print head unit

Lever, ribbon release

Ribbon

release

switch

section

Ribbon switch detent face

Frame, ribbon push face

Lever, ribbon switch

Lever, ribbon switch hole

Figure 2-14 Ribbon Switching

Rev. B Mechanism Configuration and Operating Principles

CONFIDENTIAL

Electrical Circuitry Operating Principles

Hardware Configuration

Component c on n e ction diagram

The electrical circuitry of the printer consists of the main circuit board and the interface circuit boards (UB-S01/RS-232, UB-P01/1284, or UB-S02/RS-485). The figure below is a component connection diagram of the electrical circuitry.

Print head

AC adapter

ior PS |150 j

(or PS-150)

CN1 CN2 CN4

CN7

DKD CN2

Main circuit board

I/F circuit board

CN1

CN5

Host interface

Carriage motor

CN6CN9CN8CN11

Near-end

detector (optional)

Various sensors (Not used)

Various sensors

(Not used) Paper feed motor

Motor, paper feed

Figure 2-15 Component connection diagram

2-12 Mechanism Configuration and Operating Pr inciples Rev.B

CONFIDENTIAL

Circuit board block diagram

The main circuit board unit contains the following electrical circuits:

❏ Power supply circuit ❏ Reset circuit ❏ CPU [internal RAM: 16K bits (2K x 8 bits)] ❏ Memory [EPROM: 512K bit (64K x 8 bits)] ❏ Operation panel control circuit ❏ Drawer kick-out drive circuit ❏ Print head drive circuit ❏ Motor, paper feed drive circuit

TM-U200D/U200PD Technical Manual

❏ DIP switch read circuit ❏ Various detector circuits ❏ Motor, carriage drive circuit

The interface circuit board contains the following:

❏ Reset circuit ❏ Host interface circuit

Rev. B Mechanism Configuration and Operating Principles

CONFIDENTIAL

The figure below illustrates the circuit block diagram for the printer.

Print head

AC adapter

ior PS |150 j

CN1 CN2 CN4

CN7

DKD CN2

Main circuit board

I/F circuit board

CN6CN9CN8CN11

CN1

CN5

Host interface

Carriage motor

Near-end detector (optional)

Various sensors

(Not used) Paper feed motor

Figure 2-16 Circuit board block diagram

2-14 Mechanism Configuration and Operating Pr inciples Rev.B

CONFIDENTIAL

Memory Map

The following parts are mapped on the printer memory map:

❏ CPU ❏ EPROM (Program )

TM-U200D/U200PD Technical Manual

External program memory

0000H

Program, character

generator area

FFFFH

CPU (Internal memory) ROM (External program memory)

A8 |A15

D0 |D7

ALE

(CE)P71

(A16)P75 (A17)P76 (A18)P77

External data memory Intemal memory

(For multi-lingual)

Character

generator area

D0 |D7 C0 |O7

64KB

(For multi-lingual)

Character

generator area

64KB

(For multi-lingual)

Character

generator area

64KB

(For multi-lingual)

Character

generator area

64KB

373

A0A7

FFFFH

0000H

FFFFH

0000H

FFFFH

0000H

FFFFH

(1)

(2)

(3)

(4)

(512K)

OE A8 |A15 D0 |D7

A0 |A7 CE

(External data memory) (4M)

A8 |A15

D0 |D7

A0 |A7 CE A16 |A18 WE

0000H0000H

F000H

F7A0H

FFA0H

FFFFH

Can not to be used.

(Interral ROM

program area)

Can not to be used.

Internal RAM (2KB)

Internal I/O (96bytes)

Figure 2-17 Memory map

Rev. B Mechanism Configuration and Operating Principles

CONFIDENTIAL

Principles of Operation

Power Supply Circuitry

The power supply circuit is compact, uses a switching method, and is attached to the main circuit board.The following sections describe the power supply circuitry for the printer. The following table shows the power supply voltages and their usages.

Power supply voltage usage

Voltage Usage

+5V

+24V

Logic circuit Interface circuit board Operation panel circuit Various detector circuits

Printer: Motor, carriage Motor, paper feed Print head Drawer kick-out drive

Filter circuit

The +24V (24V to 30V) DC power i s input from the CN1 connector throu gh the fi lt er circuit. The filter circuit reduces outside noise and prevents internally-generated noise from flowing through the +24V power line.

+24V DC circuit

The +24V power from the filter circuit is input to printer power an d the +5V regulator circuit. Printer pow er and drawe r drive power are the conv erted +24 ±1V that is regulated by series of regulators (U2 to U4).

2-16 Mechanism Configuration and Operating Pr inciples Rev.B

CONFIDENTIAL

+5V DC control circuit

The +5V regulator circuit switches the +24V power input and converts it to +5V. The switching regulator IC (U1) switches the +24V input, smooths it via C1, and outputs +5V. Power for the RS-232 is generated by the internal charge-up circuit on the RS-232 interface driver.

P80 WDTOUT

P51/T04

P52/T05

P53/INT1/TI4

CN1

+30V GND

N . C

F . G

30 WDTOUT

73 +24COM SW

74 CRCOM SW

76 PFCOM SW

F . G

TM-U200D/U200PD Technical Manual

+5V

Q27

Q24

R59

C12

P.G

G N D

+24DT

C11

C13

R17

GND

GNDFG

G N D

D47

D48

D49

C10

+24DT

C14

SW1

+5I

Power switch

VIN

VOUT

VIN

R42

SENSW

VOUT

SEN

VOUT

SEN

+ _

GND

10 1

GND

+24A HEAD COM A / C COM

C45

OUT

LIN

DKD COM

C16

+24B CR COM

+24C PF COM

{5 V

+ _

C41

GND

Figure 2-18 Power supply circuit diagram

Control Circuitry

Reset circuit

The reset circuit is used to prevent the CPU from operating erratically and the print head from printing unexpectedly during the period of unstable voltage immediately a f ter the power is turned on. To accomplish this, the OUT t erminal out put (pin5 ) of the re set IC (U9) is suppl ied to the CPU (U5) as the -RESET input signal (pin 21).

The reset IC (U9) monitors the +5V voltage. When the voltage is 4.5V or more, the reset is released for the CPU and other components, and the printer becomes ready.

In addition, the C terminal (pin 4) of the r eset IC (U9) is connec ted t o the reset signal (DSR sig nal or pin 25 input signal) from the host interface via DIP switches 2-3 and 2-4. If a reset signal is applied to this pin, the reset IC output goes low and the CPU and other components are reset.

The reset signals differ depending on the interface specifications:

Rev. B Mechanism Configuration and Operating Principles

CONFIDENTIAL

RS-232 serial interface: Two signals can be selected (DSR signal or pin 25 input signal). IEEE 1284 parallel interface: Pin 25 RESET signal must be used. DIP switch 2-4 is fixed to ON.

The printer can be reset with the nInit signal (pin 31) from the host.

#RST

DSR_RESET

#25_RESET

CN4

{5 V

DSW2

D16

Q31

C42

Q32

{5 V

R50

IN OUT

C28

R49

C GND

C26

D26

C27

Figure 2-19 Reset circuit

CN4 pin 29 is the reset signal of the IEEE 1284 parallel interface circuit board.

CPU

The printer uses an external 8-bit and internal 16-bit CPU, with an external clock of 14.7 MHz. The CPU (U5) controls the internal processing of the printer according to the printer control program written in EPROM (U8).

RESET

CPU pin functions

CPU

No.

Function

1 P57 ELED/DSW9 I/O TTL

2NMI

3 P100 AC1/DSEL O TTL

4 P101 AC 2/DSEL O TTL

5 AVCC AVCC I (+5V) Analog/digital convertor standard voltage 6 AVSS AVSS I (0V) (Analog/digital convertor) GND terminal 7 P60/AN 0 V DTC I Analog +24V power voltage detection 8 P61/AN1 HD TEMP I Analog Head temperature detect ion

Signal Name I/O Level Description

ERROR LED Low: on DIP SW 2-1 read when P100, P101 is low

NMI I TTL Not used (Connected to +5V directly)

Auto cutter drive (1) and DIP SW read selection Low: read (read once after the initialization) High: break status when used as motor cont rol port

Auto cutter drive (2) and DIP SW read selection Low: read (read once after the initialization) High: break status when used as motor cont rol port This pin must be changed at the same time as P100.

2-18 Mechanism Configuration and Operating Pr inciples Rev.B

CONFIDENTIAL

CPU pin functions

CPU

No.

Function

9P62 NE I TTL

10 P63 DK S I TTL Drawer open/close Low: open

11 P64 RE I TTL

12 P65 HP DTC I TTL Carriage Detector low: home position 13 P66 DET I TTL Host interface DET 14 P67 AC RST I TTL Auto cutter position detec tion (reset) 15 VCC VCC I (+5V) Main power terminal 16 P70 CTS I TTL Host interface CTS Low: on 17 P71 CCE O TTL 4M ROM CE sign al L ow : ac t ive 18 P72/RXD1 RD I TTL Host interface RD Low:on 19 P73/CLK1 CLK IN/DTR I/O TTL Host interface CLK IN/DTR 20 P74/TXD1 SD O TTL Host interface SD Low: on 21 RESET 22 CLK CLK O TTL Not used. Open 23 VSS VSS I (0V) GND terminal

24 X1 X1 I ---

25 X2 X2 O --- Connected to ceramic. f=14.74MHz ± 0.5%

26 EA

27 P75 P75 (A16) O TTL External memory address A16 (software) 28 P76 P76 (A17) O TTL External memory address A17 (software) 29 P77 P77 (A18) O TTL External memory address A18 (software)

30 P80 WDTOUT

31 P81/INT0 CLK IN/DTR I TTL Connected to pin #19 32 P82 PF SW I TTL Paper feed switch Low: ac tive

33 ALE ALE O TTL

34 VCC VCC I (+5V) Main power terminal (+5V)

TM-U200D/U200PD Technical Manual

Signal Name I/O Level Description

Paper roll near-end detection Low: no paper High: paper present

Paper roll end detection Low: paper present High: no paper

RESET I --- CPU reset input Low: on

Connected to ceramic vibrat ion generator. f=14.74MHz ± 0.5%

EA ITTL

OTTL

External memory access Low: external ROM High: internal ROM (CPU mask)

Watch dog timer error (and hardware limited time power supply switch) Low: error (reset)

Address latch enable signal Latch address on the bus AD0 to AD7 at falling.

Rev. B Mechanism Configuration and Operating Principles

CONFIDENTIAL

CPU pin functions

CPU

No.

Function

35 AD0 AD0 36 AD1 AD1 37 AD2 AD2 38 AD3 AD3 39 AD4 AD4 40 AD5 AD5 41 AD6 AD6 42 AD7 AD7 43 A8 A8 44 A9 A9 45 A10 A10 46 A11 A11 47 A12 A12 48 A13 A13 49 A14 A14 50 A15 A15 51 VSS VSS I (0V) GND terminal 52 P20 CR A/DSW1 53 P21 CR B/DSW2 54 P22 CR C/DSW3 55 P23 CR D/DSW4 56 P90 PF A/DSW5 57 P91 PF B/DSW6 58 P92 PF C/DSW7 59 P93 PF D/DSW8 60 RD 61 WR 62 P32 DKD1 O TTL Drawer kick-out drive signal 1 Low: active 63 P33 DKD2 O TTL Drawer kick-out drive signal 2 Low: active 64 P40 HEAD8 O TTL Pr int head #8 drive signal Low: on 65 P41 HEAD7 O TTL Pr int head #7 drive signal Low: on 66 P42 HEAD6 O TTL Pr int head #6 drive signal Low: on 67 P43 HEAD5 O TTL Pr int head #5 drive signal Low: on 68 P44 HEAD4 O TTL Pr int head #4 drive signal Low: on 69 P45 HEAD3 O TTL Pr int head #3 drive signal Low: on

Signal Name I/O Level Description

RD O TTL Externa l m emory data read signal WR O TTL External memory data write signal

3 state TTL

O TTL Address bus (address upper 8 bits)

I/O TTL

Address/data bus Transmit address (lower 8 bits) and data.

Motor, carriage drive control 2-2 phase excitation All the terminals on (low): hold DIP SW 1-1to 1-4 read when P100, P101 is low

Motor, paper feed drive control 2-2 phase excitation All the terminals on (low): hold DIP SW 1-5 to 1-8 read when P100, P101 is low

2-20 Mechanism Configuration and Operating Pr inciples Rev.B

CONFIDENTIAL

CPU pin functions

CPU

No.

Function

70 P46 HEAD2 O TTL Pr int head #2 drive signal Low: on 71 P47 HEAD1 O TTL Pr int head #1 drive signal Low: on 72 P48 HEAD9 O TTL Pr int head #9 drive signal Low: on

73 P51/T04 +24VCOM SW O TTL

74 P52 CRCOM SW O TTL Motor, carriage power switch Low: motor drive 75 VCC VCC I (+5V) Main power terminal (+5V)

76 P53 PFCOM SW O TTL

77 P54 CLK REQ O TTL HOST interface CLK REQ 78 VSS VSS I (0V) GND terminal 79 P55 RTS O TTL Host interface RTS Low: on

80 P56 PLED/DSW0 I/O TTL

TM-U200D/U200PD Technical Manual

Signal Name I/O Level Description

Head, auto cutter, Drawer kick-o u t po wer switch Low: drive

Motor, paper feed power switch Low: motor drive

PAPER OUT LED Low: on DIP SW 2-2 read when P100 is low

ROM (512K bit)

The printer control program and the character generator data are written in ROM (U8). The control program controls the basi c operat ions of the printer . All CPU (U5) ope ration s foll ow this program.

RAM (CPU internal 16K bit)

RAM is used as temporary storage for the following:

❏ Data received from the interface (receive buffer) ❏ Pattern data to be printed by the print head (printer buffer) ❏ Data used by the CPU (U5) during processing (flags, pointers, etc.).

Rev. B Mechanism Configuration and Operating Principles

CONFIDENTIAL

Operation panel

The operation panel is located on the main ci rcuit board a nd has 3 LEDs (POWER, ERROR, and PAPER OUT) and 1 switch (FEED). The POWER LED is driven at the same as +5V is supplied

by the power supply circuit. The ERROR and PAPER OUT LEDs are driven by U5. Switch detection is also executed by the U5.

32 PF SW

P82

1 ELED/DSW9

P57/T03

P56/INT3/TI2

80 PLED/DSW0

+5V

Q35 Q36

R41

R15

SW2

R54

(POWER)

1 1 1

D13

222

R55

(PAPER) D12

R56

(ERROR) D11

C17

Figure 2-20 Operation panel circuit

Various detector circuits

When the printer detects paper, the Paper detector at the paper inlet turns input signal to CPU (U5) low. This Detector also functions as s emi-automatic loading detector .

The Detector is provided to detect the print head position. The input signal to CPU (U5) becomes low when the home position is detected.

A near-end detector is an option that detects the remaining amount of a paper roll. The input signal to CPU (U5) becomes low when a near-end is detected.

+5V

+5V +5R

P64/AN4

P65/AN5

P62/AN2

HP DET

GND

R36

R38

R53

C23C22 C46

R40

R37

R39

R16

REC

HPC

C44

NEC

Mechanism 1

CN8

Mechanism 2

CN11

+5V

H.P

GND

R.E

N.E

GND

Printer mechanism

GND

Figure 2-21 Various detector circuits

2-22 Mechanism Configuration and Operating Pr inciples Rev.B

CONFIDENTIAL

Host interface circuit

The printer has the universal interfaces for connection to the host computer. There are three kinds of the interfaces:

❏ EIA/TIA RS-232 Interface (TM-U200D) ❏ IEEE 1284 Interface (*1) (TM-U200PD)

Refer to the Interface Circuit Board Diagrams in the Appendix.

Drawer kick-out drive circuit

Activating the DKD1 and DKD2 signals from the CPU (U5) causes the transistors Q29 and Q30 to be turned On. This causes then transistor array QM5 to be turned On and the drawer drive signal is output. The drawer status signal DK_S, which indicates whether or not the drawer is open, is input to the CPU (U5), allowing the host to check the status via the interface.

TM-U200D/U200PD Technical Manual

The +24V drawer power supply is supplied via the regulator IC (U2), which cuts off the supply in case of excessive current.

{5 V

Q29

DKD

CN2

FG DKD 1P DKD SW {24V DKD 2P SG

QM5

1 1 2 3 4 5 6

VI VO

DC 24-30V IN

9 7 5 3

G N D

R47

6 4 2

R48

C16

C45

Q30

{5 V

D46

R28

C39

Q34

R13

P32

P33

P63

Figure 2-22 Drawer kick-out drive circuit

Rev. B Mechanism Configuration and Operating Principles

CONFIDENTIAL

DIP switch read circuit

There are 8 switches in DIP switch bank 1 and 2 switches in DIP switch bank 2 that are status readable switches. Each signal is input to the CPU. The si gnal is read as LOW when the swi tch is On, and HIGH when the switch is Off.

CPU (U5) pin 52 to 55, pin 56 to 59, and pins 1 and 81 are al so used for the Mo tor, carriage drive circuit, Motor, paper feed drive circuit, and operation panel control circuit. The pins are used to read DIP switches temporarily immediately after the printer initialization (or the power is turned on).

P20 P21 P22 P23 P90 P91 P92 P93

{5V

(1)

(*1)

Q14 Q15 Q16 Q17 Q18 Q19 Q20 Q21 Q36 Q35

52 53 54 55 56 57 58 59

P57 P56

P100

P101

DSW1

12345 768

D24 D23 D22 D21 D20 D19 D18 D17

1 80

{5 V

R33

R32

Q38

Q28

{5 V

R29

Q39

D14 D25

DSW2

Figure 2-23 DIP switch read circuit

(*1): Resistance between E and B is used for pull-up resistors in the transistor.

2-24 Mechanism Configuration and Operating Pr inciples Rev.B

CONFIDENTIAL

Printer Mechanism Drive Circuit

Print head drive circuit

The head drive signal is output from CPU (U5) pin 64 to 72. Receiving this drive signal, the transistor array (QM1, QM2) and transistor array (QM3) turn On, Off, and drive the head.

Power supply time to the head is adjusted by the supplied power voltage. CPU (U5) changes the power voltage between analog and digital at AN0 (pin 7) and decides and controls the head power supply time according to the internal time table.

In order to prevent damage to the head during excessive printing, a heat Detector has been installed in the print head. An analog-digital conversion of the partial pressure difference between the heat Detector and R18 is carried out in AN1 (PIN8) of the CPU (U5) and the temperature is calculated. If the head is overheating or working improperly, the ERROR LED flashes.

P60/ANO

P61/AN1

TM-U200D/U200PD Technical Manual

+24DT

+5V

D50

R46

7 V DTC 8 HD TEMP

AVCC

AVSS

P47

P43

P42

P46

P44

P45

P41

P50

P40

C29

R45

C30C31

HEAD1

HEAD8

HEAD5

HEAD9

HEAD6

HEAD7

HEAD2

HEAD4

HEAD3

C33

C19

Q12

Q11

+5V

R18

R19

+5V

D27 D28

Q10

D32

D38

RM3

D39

D40

R20

D44

Q13

D41

D42

RM4

D43

D45

QM1

87 65 43 21

1 0

QM2

CN7 1 2 3 4 5 6 7 8 9

10 11 12 13 14 15

+24A

FG # 2 # 4 # 6 # 8 COM (# 4.6.8 ) # 9 C0M ( # 1.2.9 ) THEM1 THEM2 COM (# 3.5.7 ) # 5 # 7 # 1 # 3

Print head unit

wbh jbg

Figure 2-24 Print head drive circuit

Rev. B Mechanism Configuration and Operating Principles

CONFIDENTIAL

Motor, paper feed drive circuit

The Motor, paper feed (stepping motor) possesses an accurate angle of rotation and permits speed control. It is driven with 2-2 phase excitation. By turning P53 of the CPU to Low, +24V (+24C signal in the figure below) is applied to the COM terminal of its coil, and it is made to run by changing P90, P91, P92 and P93 to High and Low. Its speed is determined by the speed of changing P90, P91, P92 and P93 between High and Low. At the end of paper feeding, P53 of the CPU is once again set to High.

PF A/DSW5

P90/M10 P92/M12

P91/M11

P93/M13

+24C

PF C/DSW7

56 58

57 59

PF B/DSW6

PF D/DSW8

+5V

Q18

+5V

Q19

Q20

Q21

D35

QM4

RM2

D33

D34

D37

87 65 43 21

D10

CN6

+24C

PF A PF C PF COM PF B PF D

Paper feed motor

(ROTOR)

Figure 2-25 Motor, paper feed drive circuit

Motor, carriage drive cir cuit

The Motor, carriage (stepping motor) possesses an accurate angle of rotation and permits speed control. It is driven with 2-2 phase excitation. By turning P52 of the CPU to Low, +24V (+24B signal in the figure below) is a pplied to the COM terminal of its coil, and it is made to run by changing P20, P21, P22 and P23 to High and Low. Its speed is determined by the speed of changing P20, P21, P22, and P23 between High and Low. At t he end o f paper feeding, P52 of the CPU is once again set to High.

+24B

CR A/DSW1

P20/M00 P22/M02

P21/M01

P23/M03

CR C/DSW3

52 54

53 55

CR B/DSW2

CR D/DSW4

+5V

Q14

Q15

D29

Q16

D30

RM1

Q17

D31

D36

QM3

87 65 43

+24B

1 0

CN5

CR A CR C CR COM CR B CR D

Carriage motor

(ROTOR)

Figure 2-26 Motor, carriage driving circuit

2-26 Mechanism Configuration and Operating Pr inciples Rev.B

CONFIDENTIAL

Chapter 3

Handling and Maintenance

Handling Precautions

Storage Precautions

❏ Avoid storing the printer i n a dusty, humid, or extremely cold area . Also avoid ar eas that are

exposed to direct sunlight for long periods of time.

❏ For long-term storage, place the printer in a polyethylene bag with anti-rust paper (VCI

paper) and keep it in a dry place.

Use Precautions

❏ Always install a ribbon cassette and load paper before printing.

TM-U200D/U200PD Technical Manual

●

If the paper r uns out, be sure to load new pap er before you resume printing.

●

If you try to print when there is no paper or no ribbon cassette in the printer, the print quality of subsequent print jobs may suffer (the printing color may become uneven, or some dots may not be printed) because of damage to the surface of the platen, printing wires, or ribbon.

❏ Use a ground wire connected to the frame ground (FG) screw to ground the printer. ❏ Be careful when wiring and connecting the interface, power, and drawer kick-out cables to

avoid subjecting the connectors to excessive pressure.

Paper Handling Precautions

❏ Use only paper that meets the paper specifications described in Chapter 1 of this manual. ❏ If the paper used does not meet the required specifications, any of the following may occur:

●

Print quality deterioration

●

Problems in loading pap er

●

Paper jams

●

Ribbon may catch on the paper

●

Ink may stain the paper.

Rev. B Handling and Maintenance 3-1

CONFIDENTIAL

Ribbon Cassette Handling Precautions

❏ Use only the ribbon cassette specified in Chapter 1 of this manual. If another ribbon cassette

is used, any of the following may occur:

●

Print quality deterioration

●

Printer life may be shortened

●

Ink may lea k

●

The ribbon may catch on the print head.

❏ Do not re-ink a ribbon. If a ribbon is re-inked:

●

Print quality could deteriorate due to a malfunction of the print wires

●

Ink may lea k.

Replacing the Paper Roll

Note:

Be sure to use roll paper that meets the sp ecifications.

1. Turn on the printer.

2. Remove the Cover, printer.

3. Pull the paper and cut the paper at the dotted line shown in the illustration below.

Cut here

4. Press the FEED button to rem ove the cut paper.

5. Remove the used paper roll.

3-2 Handling and Maintenance Rev.B

CONFIDENTIAL

6. Using scissors, cut the leading edge of the paper roll perpendicular to the paper feed direction, as shown below.

7. Insert the paper roll.

Note:

Be sure to note the correct direction that the paper comes off the roll, as shown below.

TM-U200D/U200PD Technical Manual

Rev. B Handling and Maintenance 3-3

CONFIDENTIAL

8. Hold both edges of the pap er and insert it straight into the paper slot. Th e printer feeds the paper automatically.

9. Tear off the paper, as shown below, and then close the Printer cover .

10. When the PAPER OUT light blinks, press the FEED button to set the printer on line.

Replacing the Ribbon Cassette

CAUTION:

Make sure the printer is not receiving data when yo u replace a ribbon cassette; otherwise, data may be lost.

1. Remove the Main cover .

2. Remove the used ribbon cassette.

3. Turn the ribbon cassette’s knob in the direction of the arrow to take up any slack in the ribbon.

3-4 Handling and Maintenance Rev.B

CONFIDENTIAL

CAUTION:

Never turn the ribbon cassette’s feed knob in the opposite direction of the arrow

marked on the cassette; otherwise the ribbon cassette may be damaged.

TM-U200D/U200PD Technical Manual

4. Insert the ribbon in the position s hown in the illustra tion below and pus h the ribbon casset te until it clicks.

Note:

Make sure that the ribbon is installed between the print head and the platen without wrinkles or creases.

Rev. B Handling and Maintenance 3-5

CONFIDENTIAL

5. Turn the ribbon cassette’s knob 5 or 6 times in the dir ection of the arrow a gain to tak e up any slack in the ribbon.

Removing Jammed Paper

Follow these steps to clear a paper jam:

CAUTION:

The print head becomes very hot during printing. Allow it to cool before you reach into the printer.

1. Turn the printer off and remove t he Printer cover .

2. Pull the paper and cut it at the position shown by the dotted line in the i llustration below.

Cut here

3. Remove the paper roll.

4. Remove the ribbon cassette from the printer.

3-6 Handling and Maintenance Rev.B

CONFIDENTIAL

5. Untighten the konb of the Frame, ribbon (Thumb-screw) to unlock the Frame, ribbon .

(Single-color Print Version)

TM-U200D/U200PD Technical Manual

Frame, ribbon knob

Thumb-screw

(2-color-Print Version)

6. Remove the Frame, ribbon from the printer by sliding it in the direction of the arrow. Slide the Frame, ribbon in the direction of the arrow. ( Single-co lor Print Ver sion only ); then move the Frame, ribbon (Cover, head) from the printer.

(Single-color Print Version)

7. Remove all the jammed paper.

(2-color Print Version)

Note:

Do not pull the jammed paper in the opposite direction of paper feeding.

8. Replace the Frame, ribbon (Cover, head) and close the lock to secure it.

9. Install the paper roll, Ribbon cassette, and Cover, printer.

Rev. B Handling and Maintenance 3-7

CONFIDENTIAL

Using the Power switch cover

You can use the provided Cover, power switch to protect the power switch from accidental or improper operation. Attach the cover as shown in the illustration below.

You can turn the power on or off with the switch cover attached by inserting a pointed object (like a ball point pen) through either of the two small holes on the switch cover.

CAUTION:

If an accident occurs when the Power switch cover is a ttached, pull the AC adapter cord out of the outlet immediately; otherwise the printer may be damaged.

Maintenance

Periodic Checks

Perform the following periodic checks every six months:

Periodic checks

Checkpoints Standards Remedies

Dust, paper particles, or dirt on and in the printer.

Lubrication See the Lubrication section. Lubricate the points listed in Lubrication

Operation check When each printer compon en t is

Shape of the springs No spring should be bent or deformed. Replace any deformed spring s. Ribbon cassette The ribbon cassette should be properly

No dust, pap er pa r ti cle s, or di r t s hou l d b e allowed to build up on or in the printer.

No small piec es of pa per sh ould be left in the paper path.

observed, no abnormalities should be found.

installed in the printer.

Clean the printer thoroughly with a vacuum cleaner.

Remove any pieces of paper from the paper path.

points sectio n. Check the printer following the

Troubleshootin g flow ch arts in Chapter 4.

See “Replacing the Ribbon Casset te ” in this chapter.

3-8 Handling and Maintenance Rev.B

CONFIDENTIAL

Cleaning

1. Wipe off stains with a clean, dry cloth. If the stains cannot be wiped off, use a neutral detergent.

CAUTION:

Never use benzene, alcohol, thinner, trichloroethylene, or any of the ketone family of solvents because they may deform or damage plastic and rubber components.

2. Thoroughly clean all parts of the printer with a vacuum cleaner.

Note:

Check the amount of lubrication in each cleaned area and lubricate as needed. See “Lubricants” below.

Lubricants

TM-U200D/U200PD Technical Manual

Lubrication is critical to retaining the printer at its initial performance level throughout its product life, as well as avoiding potential problems. Alway s lubricate at prescribed intervals, using the correct lubricants.

Lubrication Standard

❏ During disassembly and reassembly, clean the parts first, then lubricate them. See the

lubrication points table in this chapter and the lubrication and adhesive points diagrams in the Appendix.

❏ Lubricate or overhaul after every 5 million lines printed.

Lubricants

The types of l ubricants used greatly affec t the printer’s pe rformance and d urability, and a lubricant’s low-temperature characteristics require special attention. EPSON has conducted thorough analyses of the technical data and wide-ranging experimentation on different lubricants. The EPSON selection of l ubri cant s presc ribed for u se wit h the p ri nter is based on t he results of such research. The prescri bed EPSON lubri cants a re av ailable in 40 cc (4 0gr) met al cans or plastic containers (the smallest unit of supply).

The two types of lubricants used with this printer are G-31 and O-10.

Rev. B Handling and Maintenance 3-9

CONFIDENTIAL

Lubrication Points

The following table describes the lubrication points, type, and class. The numbers in the following table correspond to the numbers in the lubrication and adhesive points diagrams in the Appendix on pages A-20 and A-21.

Lubrication points

No. Lubrication point Lubricant type

Contact points between the Shaft, carriage and

(1)

Carriage sub-ass’y (2 points) (2) Shaft, ribbon intermediate gear G-31 (3) Shaft, paper hold roller G-31 (4) Both ends of the guide roller G-31 (5) Switching points of Lever, ribbon switch G-31 (6) Switching point of Lever, ribbon release G -31

Tool List

O-10

The required t oo ls for this printer are as follows:

❏ Brush #1 ❏ Cleaning brush ❏ Phillips screwdriver No. 1 ❏ Phillips screwdriver No. 2 ❏ Phillips screwdriver No. 2 (with long handle) ❏ Flatblade head screwdriver . ❏ Pliers ❏ Retaining pliers #2.3 ❏ Thickness gauge (0.55mm, 0.60mm, 0.65mm) ❏ Tweezers ❏ Slanted blade cutter ❏ Electric soldering iron.

3-10 Handling and Maintenance Rev.B

CONFIDENTIAL

Lubricant and adhesive list

Lubricants and adhesives

Type/name Quantity

Grease/G-31 40gr Oil/O-10 40gr

TM-U200D/U200PD Technical Manual

Rev. B Handling and Maintenance 3-11

CONFIDENTIAL

Chapter 4

Troubleshooting

Use the following to troubleshoot and repair the printer:

Self-test

Use the self-test to check the operation of the control circuitry and the printer mechanism.

Troubleshooting flow chart

When the source of the problem is not clear, use the flowchart to find and replace a defective component.

Troubleshooting table

Follow the steps outlined in this table to repair a d efect whose sy mptoms are known.

TM-U200D/U200PD Technical Manual

Self-test

Initiating the Self-test

1. Insert a paper roll and a ribbon cassette in the printer, and close the printer cover.

2. Turn off the printer.

3. Turn on the printer while keep ing the FE ED button depressed. The self-test starts, and status information is printed.

Self-test Standby

1. When status information printing is complete, the following is printed:

“Self-test printing. Please press PAPER FEED button.”

The PAPER OUT LED flashes alternately to indicate the standby condition.

2. Press the FEED button to continue the self-test.

Rev. B Troubleshooting 4-1

CONFIDENTIAL

Ending the Self-test

The printer prints “*** completed *** “ and ends the self-test. The printer automatically becomes ready to receive data after the self-test.

Figure 4-1 Self-test print out

4-2 Troubleshooting Rev.B

CONFIDENTIAL

Troubleshooting Flowchart

If the source of a problem is not clear, use the flowchart below to find and replace a defective component. Normally, servicing should be performed by component replacement. Repairs of the PCBs and other components should be performed only by technicians.

TM-U200D/U200PD Technical Manual

Start

Power on

Is POWER LED lit?

Yes

Is ERROR

LED flashing?

Is PAPER OUT LED lit?

Yes

Take the steps described in Error types and countermeasures.

END

Yes

Is paper roll in near-end condition or not inserted?

Yes

Replace or insert paper roll.

Semi-automatic

loading executed?

Yes

Execute the self-test

Is self-test normal?

Yes

Host sends print data

Is printout normal?

Yes

END

Rev. B Troubleshooting 4-3

CONFIDENTIAL

1 PPOWER LED does not light

Is power supply cable connected

properly?

Yes

Does external power

supply have proper output

voltage rating? (approx. +40 V

in no-load

condition)

Yes

Has fuse F1 on

main PCB blown?

Yes

Connect power supply cable prop erly .

OK?

Yes

End

Replace external power supply.

OK?

Yes

End

(See Replacing the fuse in Chapter 5)

Replace Fuse F1

OK?

Yes

End

Replace main PCB

End

4-4 Troubleshooting Rev.B

CONFIDENTIAL

2 PPAPER LED is lit.

TM-U200D/U200PD Technical Manual

Is the paper

roll near end sensor

continuity normal?*

Yes

Replace printer mechanism

assembly.

OK?

Yes

Replace the near-

end sensor.

OK?

Yes

END

Replace Mai n PCB.

END

(*) The near-end sensor is optional.

Rev. B Troubleshooting 4-5

CONFIDENTIAL

3 Semi-automatic loading is not executed.

Is paper jammed in

the paper inlet path?

Is CN6 connector

hooked up firmly?

Yes

Replace printer mechanism

assembly.

Yes

Remove the paper.

OK?

Yes

END

Hook up connector

firmly.

OK?

END

Yes

END

OK?

Replace main PCB.

END

4-6 Troubleshooting Rev.B

CONFIDENTIAL

4 SSelf-test is not normal.

TM-U200D/U200PD Technical Manual

Is ERROR

LED flashing?

Replace printer

mechanism assembly.

Yes

OK?

Replace main PCB

Yes

Take the steps described in

Error types and countermeasures.

END

Rev. B Troubleshooting 4-7

CONFIDENTIAL

5 Data from host is not printed normally.

Set DIP switch 1–1 to OFF.

Send data from host to computer.

(*)

Is “?” printed?

Does

interface

cable match

specifications?

Yes

interface PCB

connected to the

main PCB

firmly?

Yes

Are serial

interface parameters

set to identical values at

host printer?

Replace with a proper cable.

OK?

End

Connect the interface

PCB firmly.

Yes

Make settings identical.

OK?

Yes

End

(*) Dotted line in dicates the process of checking problems for the serial interface.

OK?

Yes

Replace interface PCB.

OK?

Replace printer

mechanism assembly

Yes

End

4-8 Troubleshooting Rev.B

CONFIDENTIAL

Troubleshooting Tables

If a problem that can be verified by visual examination has occurred, use the Troubleshooting Tables to determine the cause and perform repairs.

The tables contain the following columns: ❏ Problem

This is the symptom that can be verified.

❏ Probable cause

This is a listing of one or several possible causes that should be examined.

❏ Level

Level A The problem can be corrected by persons who are familiar with the printer and

have general knowledge, but special technical skills are not required.

TM-U200D/U200PD Technical Manual

Level B The problem requires thorough knowledge and familiarity with the printer as

well as technical skills and experience.

❏ Checkpoint

These are one or more areas in the printer that should be checked.

❏ Action

These are the steps to correct the problem. If the problem persists after taking these steps, check the other possible causes listed.

Table 4-1 Troubleshooting table for printer operation failure

Problem Probable cause Level Checkpoint Action

Check the output voltage of

the AC adapter. (approx. +40 VDC with unloaded)

Check if the fuse F1 on the

Main circuit board ass’y is blown.

Check if fuse (R42) on the Main

circuit boar d ass’y is blown The cause is none of the

above. Check the self test using

another Main circuit board unit. Check the continuity of the

FEED button (SW2).

The cause is none of the

above.

Replace the AC adapter.

Replace fuse F1. (See “Replacing the Fuse” in Chapter 5.)

Replace the Main circuit board.

Replace the main PCB.

Replace SW2.

Replace the mechanism assembly.

The POWER LED does not light when the power is on.

The printer does not print the self test.

The AC adapter may be bad.

The fuse may be blown.

The main PCB may be bad

The main PCB may be bad.

The FEED button may be bad.

The printer mechanism assembly may be bad.

Rev. B Troubleshooting 4-9

CONFIDENTIAL

Table 4-1 Troubleshooting table for printer operation failure (Continued)

Problem Probable cause Level Checkpoint Action

An incorrect interface cable may be use d .

For the serial interface models, the pr inter DI P

Data from the host is printed incorrectly.

The PAPER OUT LED does not correctly indicate the status of the paper roll.

The printer is not initialized. (Home position detection error)

Semi-automatic loading is not executed. (Paper is not fed.)

switch settings do not match the ho s t settings.

The Main circuit board unit may be bad.

The mechanism assembly may be bad.

The near-end detector assembly may be bad. (The near-end detector is an option.)

The connector is not inserted correctly.

The Motor, carriage ass’y may be bad.

The Motor, carriage may be bad.

The home position detector ass’y may be bad.

The operation of the paper supply may be incorrect.

The paper path may be incorrect.

The connector is not inserted correctly.

Motor, Paper feed may be bad.

The Roller, paper hold ass’y may be worn.

The gears may b e worn or damaged.

The Paper detection switch ass’y may be bad.

Check if the interface cable

matches the printer specifications.

Check if the printer DIP switch

settings match the host setti ngs.

Check the printer using another

Main circuit board unit.

The cause is none of the

above.

Check the signal of the near-

end detector ass embly.

Check if the pin of CR motor cable is inserted in the

connector CN6 of the main circuit boar d unit.

Check the continuity of each

terminal. The cause is none of the

above. Using an oscilloscope, check if

the detection signal is output

when print head unit passes above the home position detector ass’y.

Check if the paper roll meets

the printer specifications.

Check if the paper supply path

is blocked by paper particles or foreign materials.

Make sure that the pin of the PF motor cable is not inserted in

the connector CN6 of the main circuit board.

Check if the motor rotates

during semi-automatic load ing.

Check if the Roller, paper hold

are worn or damaged.

Check if the Gear, paper feed

reduction and Gear, paper feed are worn or damaged.

Using an oscilloscope, check if

the detection signal is output when roll paper is inserted.

Use the correct interface cable.

Change the printer DIP switch settings or host settings so that they match.

Replace the Main circuit board unit.

Replace the mechanism assembly.

Replace the near-end detector ass e mbly.

Reinsert the connector.

Replace the Motor, carriage asse’y.

Replace the Motor, carriage ass’y.

Replace the home position detector ass’y.

Use the correct paper roll. (See “Paper Specifications” in Chapter 1.)

Remove any pieces of paper, paper particles or foreign materials.

Reinsert the connector.

Replace the Motor, paper feed.

Replace the Roller, paper hold ass’y.

Replace any worn or damaged parts.

Replace the Paper detection switch ass’y.

4-10 Troubleshooting Rev.B

CONFIDENTIAL

Table 4-2 Troubleshooting table for bad printing

Problem Probable cause Level Checkpoint Action

The printer does not print. (The Motor, carriage operates, but nothing is printed, or the print color is light.)

Dots are missing continuously. (A specific dot is not printed.)

Dots are missing occasionally.

The character width is incorrect.

Paper is not fed. (Printing is performed on one line.)

The ribbon in the ribbon cassette may be bad.

The platen gap may be incorrect.

The common line of the Print head unit may be bad.

The FPC, head may be bad.

The drive coil of the Print head unit may be bad.

The dot wires of the Print head unit may be bad.

The FPC, head may be bad.

The Print head unit may be bad.

The Print head unit may be worn.

Paper particles or foreign subs tances may be attached to gears or pulley, belt driving or the belt.

Gears or Pulley, belt drive or the belt may be damaged or worn.

The operation of the paper supply may be incorrect.

The paper path may be incorrect.

The connector is not inserted correctly.

The Roller, paper feed may be bad.

The Roller, paper hold ass’y may be worn or damaged.

Check if the color of the ribbon

is faded or the ribbon is wrinkled or torn.

Check the platen gap.

(standard: 0.55 mm ±0.05 mm)

Check the continuity of the

common line.

Check the continuity of the

common line. Check the continuity of the F

PC, head. Using the tester, check the

resistance of the corresponding

drive coil. (Standard: 19.2 ohm ±5%)

Check if the dot wires are

broken.

Check the continuity of the

FPC, head. Check if there are paper

particles or ink o n the tip s of th e dot wires of the Print head unit.

The cause is none of the

above. Check if any paper particles or

foreign substances are

attached to the Pulley, belt drive, Pulley, belt te ns io n , an d belt.

Check the wear and damage

of the Pulley, belt dri ve, Pulley, belt tension, and belt.

Check if the specified paper

roll is used.

Check if the paper supply path

is blocked. Make sure that the pin of the PF

motor cable is inserted in the

connector CN6 of the main circuit board.

Check the wear and damage

of the surface of the roller. Check the wear and damage

of the rollers of the Roller, paper hold ass’y.

TM-U200D/U200PD Technical Manual

Replace the ribbon cassette.

Adjust the platen gap. (See “Adjustments” in Chapter 5.)

Replace the Print head unit.

Replace the FPC, head.

Replace the Print head unit.

Replace the FPC, head.

Remove any paper particles or ink, or replace the Print head unit.

Replace the Print head unit.

Remove any paper particles or foreign substances.

Replace any worn or damaged parts.

Use the correct paper roll. (See “Paper Specifications” in Chapter 1.)

Remove paper particles and foreign substances.

Reinsert the connector.

Replace the Roller, pape r feed.

Replace the Roller, pape r hold ass’y.

Rev. B Troubleshooting 4-11

CONFIDENTIAL

Table 4-2 Troubleshooting table for bad printing (Continued)

Problem Probable cause Level Checkpoint Action

Gears may be worn or

Paper is not fed. (Printing is performed on one line.) (cont.)

The paper feeding pitch is not uniform.

The printer prints, but the ribbon is not fed.

damaged.

Motor, paper feed ass’y may be bad.

The Motor, paper feed may be bad.

The operation of the paper supply may be incorrect.

The paper path may be incorrect.

The connector is not inserted correctly.

The Roller, paper feed may be worn or damaged.

The Roller, paper hold ass’y may be bad.

The Roller, paper hold ass’y may be worn or damaged.

Gears may be worn or damaged.

The ribbon cassette may be loose.

The ribbon cassette may be bad.

The Plate,ribbon drive ass’y may be bad.

The clutch portion of Ribbon take-up ass’y may be worn.

Gears may be worn or damaged.

Check the wear and damage of the Gear, paper feed

reduction and Gear, paper feed.

Check the continuity of the PF

motor cable ass’y. The cause is none of the

above.

Check if the specified paper

roll is used.

Check if the paper supply path

is blocked. Make sure that the pin of the PF

the motor cable is inserted in

the connector CN6 of the Main circuit board.

Check the wear and damage

of the surface of the roller.

Check if the Roller, paper hold

ass’y rotates smoothly.

Check the wear and damage

of the rollers of the Roller, paper hold ass’y.

Check the wear and damage of the Gear, paper feed

reduction and Gear, paper feed.

Check if the ribbon cassette is

installed correctly

Check if the ribbon is fed by

rotating the ribbon-tightening knob.

Check if the Plate, ribbon drive

ass’y moves smoothly. Check if the ribbon does not

move smoothly when you turn

the upper portion of the Ribbon take-up ass’y.

Check if the Ribbon drive ass’y, Gear, ribbon intermediat e,

Gear, ribbon t ransmission, and Ribbon take-up ass’y are worn or damaged

Check if any foreign

substances are attached to the gears.

Replace any worn or damaged parts.

Replace the Motor, paper feed cable ass’y.

Replace the Motor, paper feed.

Use the correct paper roll. (See “Paper Specifications” in Chapter 1.)

Remove paper particles and foreign substances.

Reinsert the connector.

Replace Roller, pa per feed.

Clean and lubricate the Roller, paper hold ass’y or replace it.

Replace the Roller, paper hold ass’y.

Replace any worn or damaged parts.

Install the ribbon cassette correctly. (See “Replacing the Ribbon Cassette” in Chapter 3.)

Replace the ribbon cassette.

Replace the Plate, ribbo n drive ass’y.

Replace Ribbon take-u p ass’y.

Replace any worn or damaged parts.

Remove the foreign substances.

4-12 Troubleshooting Rev.B

CONFIDENTIAL

Table 4-2 Troubleshooting table for bad printing (Continued)

Problem Probable cause Level Checkpoint Action

The print color is mixed. (Half of the character is black and the other half is red)

Color does not change. (Black to red or red to black)

The Ribbon Cassette is floating .

The ribbon is placed incorrectly.

The Frame, ribbon ass’y is deformed.

The ribbon is defective.

The Spring, ribbon release is unhooked or damaged.

The Spring, ribbon frame is unhooked or damaged.

Verify that the Ribbon cassette

is mounted correc t ly .

Verify that the ribbon is not placed between the Print head

mask ass’y and Frame, paper feed ass’y.

Verify that the Frame, ribbon

ass’y is not deform ed .

Verify that the color of the

ribbon is not blurred, or the Ribbon is not rumpled or worm

Verify that the Spring, ribbon

release is not unhooked or damaged.

Verify that the Spring, ribbon

frame is not unhooked or damaged.

TM-U200D/U200PD Technical Manual

Mount the Ribbon caseate in the correct position. (See the “Replacing the Ribbon Cassette” in Chapter 3)

Place the ribbon between the Print head unit and Print head Mask ass’y.

If it deformed, replace the Frame, ribbon ass’y.

Replace the Ribbon cassette if the ribbon is worn or the print color is light.

If the spring is unhooked, hook it back on. If it is damage d, r ep lac e it.

If the spring is unhooked, hook it back on. If it damaged, replace it.

Rev. B Troubleshooting 4-13

CONFIDENTIAL

Error Types and Countermeasures

Follow the flowcharts on the next page based on the ERROR LED blinking patterns in the table below and repair the printer. The printer does the following when an error occurs:

❏ All operations stop ❏ The printer goes off-line (when DIP SW2-3 is off) ❏ The ERROR LED blinks.

ERROR LED blinking patterns

Error ERROR LED Blinking PatternError Description Action

(1) Head high-temper ature error ( 1)

(2) Auto cutter error

Home position detection error

(3) Memory or gate array read/write error

(4) High-voltage error

(5) Low-voltage error

(6) CPU execution error

Print head

(7) Thermistor error

temperature detection error.

( 1) This error can occur for a short time during normal printing, when the print head reaches a high temperature. No repair

is necessar

in this case.

Print head temperature is too high.

There is an abnormality in the

Home position cannot be detected

auto cutter.

due to a paper jam or other problem.

Read/write check has failed.

Power supply voltage is too high.

Power supply voltage is too low.

CPU is trying to execute an invalid address.

Print head temperature is out of

There is an abnormality in detecting

normal operating range.

the print head temperature or the print head rank can not be read correctly.

160 ms

Action 1

Action 2

Action 3

Action 4

Action 5

Action 6

Action 7

4-14 Troubleshooting Rev.B

CONFIDENTIAL

Action 1

Wait for the print head temperature to drop.

TM-U200D/U200PD Technical Manual

Action 1

Has the

printer recovered

from the error?

Replace main PCB

OK?

Replace printer me ch anism assembly.

END

Yes

END

Rev. B Troubleshooting 4-15

CONFIDENTIAL

Action 2

Are there any pieces of paper in the home position

sensor?

Is CN5 connector

inserted firmly?

Yes

Replace pri n ter

mechanism assembly.

Yes

OK?

END

Yes

Remove paper.

Insert the connector

OK?

Yes

END

firmly.

OK?

Yes

END

Replace main PCB

END

4-16 Troubleshooting Rev.B

CONFIDENTIAL

Action 3

Turn the printer power off.

TM-U200D/U200PD Technical Manual

Action 3

Does external power

supply have proper output

voltage rating? (approx. 40V

in no-load

condition)

Yes

Replace main PCB

OK?

Replace printer mechanism assem bly .

END

Yes

Replace external

END

power supply.

OK?

Yes

END

Rev. B Troubleshooting 4-17

CONFIDENTIAL

Action 4

Replace main PCB.

OK?

Replace pri n ter

mechanism assembly.

END

Yes

END

4-18 Troubleshooting Rev.B

CONFIDENTIAL

Chapter 5

Disassembly, Assembly, and Adjustment

Small Part Specifications

This section uses abbreviations for small parts such as screws and washers. The following is a l ist o f t hese abbreviations and illustrations of the screw types.

❏ CCS-tite Cross-recessed Cup head S-tite self-tap ping screw ❏ CBS-tite Cross-recessed Bi nding head S-tite self-tapping screw ❏ CBB-tite Cross-recessed Binding h ead B-tite self-tapping screw ❏ CBT-B Cross-recessed Binding head self-tapping screw without fluted class 2 ❏ CP(O) Cross-recessed Pan head screw with outside toothed lock washer

TM-U200D/U200PD Technical Manual

❏ CPS-tite Cross-recessed Path head S-tite self-tapping screw ❏ CPS-tite(O) Cross-recessed Pan head S-tite screw with outside toothed lock washer ❏ CPT-B Cross-recessed Pan head self-tapping screw without fluted class 2 ❏ CPP-tite Cross-recessed Pan head P-tite self-tapping screw

Head (top) Head (side) Body Washer (assembl ed) C (Cross) P (Pan)

B (Bind)

C (Cup)

S-tite

T-B

B-tite

P-tite

(O)

Rev.B Disassembly, Assembly, and Adjustment 5-1

CONFIDENTIAL

Disassembly

Removing the fuse

1. Turn off the printer.

2. Disconnect the external power supply.

3. Remove the main cover assembly from the printer.

4. Remove the lower plate from the printer.

CPS-tite (M3x6) [0.59 to 0.78 N • m (6 to 8 kgf • cm)]

Fuse

5. Use tweezers to remove the blown fuse.

6. Replace the fuse with a 125 V, 2.0 AT Littelfuse 154002T.

5-2 Disassembly, Assembly, and Adjustment Rev. B

CONFIDENTIAL

Sub-assembly A

Frame, paper feed unit ass’y

1. Apply G-31 to the middle of the Shaft, Roller, paper hold.

2. Pass the Shaft, Roller, paper hold through the Spring, paper hold plate and Roller, paper hold.

TM-U200D/U200PD Technical Manual

Shaft, Roller, paper hol d

Apply G-31

Roller, paper hold

Spring, paper hold plate

3. Hold the Roller, paper feed ass’y at the angle shown in the illustration and insert the thin end of the shaft into the Frame, paper feed ass’y. Then move the Roller, paper feed ass’y into place.

Frame, paper feed ass’y

thin portion

Roller, paper feed ass’y

Rev.B Disassembly, Assembly, and Adjustment 5-3

CONFIDENTIAL

4. Attach the Gear, paper feed reduction to its shaft as shown in the second illustration below. Make sure that the Gear, reduction is closer to the frame than the Gear, paper feed.

5. Next, insert the J feed roller shaft holder L into the frame as shown in the illustration.

J feed roller shaft holder (right)

Gear, paper feed

6. Fix the J feed roller shaft holder L onto the shaft on the Roller, paper feed ass’y, insert it in the frame, and lock it with R.E.

R.E(2.3)

J feed roller shaft holder L

Gear, paper feed reduction

Note:

The right J feed roller shaft h older L, which is fixed to the Roller, paper feed ass’y, is inserted into the frame first; then the J feed roller shaft holder L is attached.

5-4 Disassembly, Assembly, and Adjustment Rev. B

CONFIDENTIAL

7. Attach the Motor, paper feed to the Frame, paper feed ass’y with the screw.

TM-U200D/U200PD Technical Manual

CBS-tite (M3x5) [0.69 to 0.88 N • m (7 to 9 kgf • cm)]

Motor, paper feed

Frame, paper feed ass’y

8. By fitting the U-cut portion of the Paper guide, upper to the shaft of the Roller, paper feed ass’y, attach the Paper guide to the Frame, paper feed ass’y. Press the Paper guide until it clicks.

✔

Check that the two dowels on the Frame, paper feed are in the rectangular holes on the Paper guide, upper.

Paper guide, upper

Dowels

shaft on the Roller , pa per feed ass’y

Rectangular

holes

U-cut portion

Rev.B Disassembly, Assembly, and Adjustment 5-5

Epson TM-U200D, TM-U200PD Service manual

Specifications and Main Features

Frequently Asked Questions

User Manual

FCC CLASS A

Introduction

Revision Sheet

Printing Specifications

Character Specifications

Paper

Paper Roll Supply Device

Receive Buffer

Electrical Specifications

Ribbon Cassette

External Dimensions and Weight

Environmental Specifications

Reliability

Safety and EMI Standards Applied

Printer Installation Stance

Main Unit Specifications

Motor, Paper Feed

Motor, Carriage

Print Head Unit

Detector Sub-ass’y

Paper Detector Switch Sub-ass’y

Near-end Detector (N.E.-U200); (Optional)

Interface connector

Power Supply Connector

Drawer Kick-Out Connector

Interface

RS-232 Serial Interface

Interface Connector Pin Assignments

RS-485 Serial Interface (option)

IEEE 1284 Parallel Interface

Interface Connector Pin Assignments

Buttons and Switches

Power Switch

Panel Button

DIP Switches

Panel LEDs

Performing the Self Test

Printer Operation When an Error Occurs

Data Receive Error

Detectors and Printing

Hexadecimal Dump Function

Performing a Hexadecimal Dump

Options

External Power Supply PS-170

Printer Mechanism Operating Principles

Print mechanism unit

Print head unit movement

Wire movement when a single dot is printed

Printing a character (9x9 font)

Paper Feed Mechanism Unit

Paper loading (semi-automatic loading)

Paper feeding

Ribbon Feed Mechanism Unit

Ribbon feeding

Detection Mechanism Unit

Home position detection mechanism

Paper detection mechanism

Near-end detection mechanism (optional)

Ribbon Switch Mechanism Unit

Switching from Black to Red

Releasing from Red to Black

Electrical Circuitry Operating Principles

Hardware Configuration

Principles of Operation

Power Supply Circuitry

Control Circuitry

Various detector circuits

Host interface circuit

Drawer kick-out drive circuit

DIP switch read circuit

Printer Mechanism Drive Circuit

Print head drive circuit

Handling Precautions

Storage Precautions

Use Precautions

Paper Handling Precautions