Epson TM200 service manual Troubleshooting, Symptoms and Solutions

Page 34

TM200 Service Manual

4 Troubleshooting

4.1 Symptoms and Solutions

This explains how to find the source of a problem using the symptom. The numbers in the “Checkpoints” column indicate the order to use to check the problem. If you cannot determine the cause of the problem after checking the first item, proceed to the next number.

Table 4-1 Symptoms and checkpoints

Symptom

 

Checkpoints (by Priority)

 

 

 

 

Power does not turn on.

 

1.

Check the power supply unit. Check that 24V is coming out of

Power on self check is not

 

 

the power supply

 

 

 

 

completed

 

2. Check the main circuit board unit.

 

 

Or, POWER LED does not light.

3.

Unplug the printer. Then unplug each motor or coil's

 

 

 

 

connector from the main board one by one; plug the printer

 

 

 

 

back in, and power it on. This will let you know if any motor or

 

 

 

 

coil has burned out and is pulling down the power.

 

 

 

4. Replace the I/F circuit board.

 

 

 

 

 

 

 

 

 

 

There are missing dots

 

Receipt

1.

Clean the thermal print head.

(See page 30)

in the print

 

printing

2.

Replace the thermal print head module.

(See page 44)

 

 

 

3.

Replace the main circuit board unit.

(See page 47)

 

 

 

 

 

 

The print is thin.

 

Receipt

1.

Clean the thermal print head.

(See page 30)

 

 

printing

2. Adjust DIP switches DSW 1-3 and 1-4 (print density selection

 

 

 

 

switches). (See page 12)

 

 

 

 

 

 

 

3. Replace the thermal print head module. (See page 44)

 

 

 

4.

Replace the main circuit board unit.

(See page 47)

 

 

 

 

 

 

Unevenness occurs in

 

Receipt

1.

Clean the thermal print head.

(See page 30)

the concentration of

 

printing

2. Replace the thermal print head module.

(See page 44)

the print.

 

 

3. Replace the main circuit board.

(See page 47)

 

 

 

 

 

Paper feed failure.

 

Thermal

1.

Check that the roll paper is properly loaded.

 

 

printer

2. Check the receipt paper feed motor.

 

 

 

 

 

3.

Replace the main circuit board.

(See page 44)

 

 

 

 

Paper jams

 

 

Remove the jammed paper by following the directions in

 

 

 

“Clearing Paper Jams.”

 

 

 

 

 

 

 

 

 

 

 

Missing characters/misprinted

1.

Check the DIP switch settings.

 

 

 

 

characters/font breakdown.

2. Replace the interface cable.

(See page 47)

 

 

 

 

 

 

 

ERROR LED is lit.

 

1. Close the cover.

 

 

 

 

 

 

 

2. Install a new paper roll.

 

 

 

 

 

 

 

 

 

 

 

 

 

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Contents TM200 Appendix a Printer Parts Printer cover Control Panel Cutter cover Cover open buttonPrinting Specifications Character sizeAutocutter Paper SpecificationsElectrical Specifications Printable AreaReliability EMI and Safety Standards AppliedExternal Dimensions and Weight Conditions of acceptabilityEnvironmental Conditions HumidityPower Supply Connector Major Component SpecificationsConnectors TM200 Printer MechanismInterfaces Drawer Kick-out ConnectorRS-232 serial interface Switching between online and offline TM200 serial printer status and signalsType Rocker switch Function Buttons, Switches, and Panel LightsPower Switch Panel ButtonPanel lights DIP SwitchesSerial interface model OFF Transmission Speed Parallel interface model DIP switch EPPSelf-test Running the self testPerforming a Hexadecimal Dump Hexadecimal DumpHexadecimal Dump Function Ending hexadecimal dumpingCover Open Button Standard AccessoriesPaper Sensors Cover Open SensorOptions External Power Supply SpecificationsInput specifications ConsumablesOutput specifications Component Connections TM200 Printer MechanismPrinter Mechanism Thermal head Module Frame cover openAutocutter operation Main Circuit Board UnitAutocutter Module Cutter blade knobCPU peripheral logic circuits TM200 Control CircuitControl Panel Control Circuit Power Supply CircuitDrawer Kick Control Circuit Switch Circuit Board I/F Circuit BoardOperational Precautions Transport PrecautionsSetup Precautions HandlingPaper Precautions Loading paper rollPage Problem Solving ErrorsClearing Paper Jams Maintenance Procedures Inspection and MaintenanceCleaning Thermal head Exterior dirt Platen roller on receipt sidePaper roll end sensor on receipt side Dirt, lint, dustTroubleshooting Symptoms and SolutionsPrinter Operation when an Error Occurs Error Types and ProcessingData Receive Error only with the serial interface model Page Disassembly, Assembly, and Adjustment Procedures Before Starting disassembly, assembly, and adjustmentUsing this Manual TitlesTM200 Disassembly, Assembly, and Adjustment Please following the steps for disassemblyDoor sensor block Page Paper out sensor block and paper sensor block Page Page Autocutter module Page Thermal head module Page Page Main circuit board Page Page Specifications Switching between online and offlineInterface Pin Assignments Appendix B Exploded diagram Appendix C Panel lights and indicators Page Appendix D Parts number list

TM200 specifications

The Epson TM200 series represents a significant advancement in the realm of receipt printers, catering to a diverse range of business needs. Known for its reliability, speed, and compact design, the TM200 is engineered specifically to meet the demands of retail, hospitality, and other environments requiring efficient transaction processing.

One of the standout features of the Epson TM200 is its enhanced printing speed, capable of producing receipts at an impressive rate of up to 200 mm per second. This rapid output reduces the time customers spend waiting for their transactions to be completed, thereby increasing throughput during peak business hours. The device employs advanced thermal printing technology, which not only ensures high-quality output but also minimizes the need for ink or toner.

The TM200 series is designed with versatility in mind. It supports multiple connectivity options, including USB, serial, and Ethernet interfaces, allowing for seamless integration into existing systems. Additionally, its compatibility with various operating systems enhances its usability across a wide spectrum of platforms, making it a flexible choice for businesses.

Another notable characteristic of the TM200 is its compact footprint. The printer's design maximizes counter space, making it an ideal solution for environments with limited room. Despite its small size, the TM200 does not compromise on performance, delivering robust features in a sleek form factor.

Built with durability in mind, the Epson TM200 boasts an extended lifespan, significantly reducing the need for frequent replacements. Its intuitive paper load mechanism ensures quick and easy paper changes, further enhancing operational efficiency.

Moreover, the TM200 series utilizes Epson's unique Economode technology, which optimizes power consumption without compromising on performance. This eco-friendly approach not only lowers operational costs but also aligns with sustainability goals pursued by many modern businesses.

In summary, the Epson TM200 series combines high-speed performance, versatile connectivity, compact design, and durability, making it an ideal choice for businesses seeking reliable and efficient receipt printing solutions. Whether placed in a retail store, restaurant, or other commercial environments, the TM200 stands out as a formidable option that meets contemporary business needs with ease and efficiency.
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