TSC MH340

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MH240 Series

Industrial Barcode Printers

User Manual

Series Lists:

MH240/MH340/MH640

MH240T/MH340T/MH640T

MH240P/MH340P/MH640P

 Thermal Transfer

 Direct Thermal

Table of Contents

Questions and Answers:

J
Jonathan HuberSep 2, 2025
Why is my TSC Barcode Reader not printing?
- S
  Scott MillerSep 2, 2025
  Your TSC Barcode Reader might not be printing because the interface cable isn't properly connected. Ensure the cable is securely connected or try using a new cable. If you're using a wireless or Bluetooth device, verify that it is properly connected between the host and printer, and reset the wireless device settings if needed. Also, ensure the correct printer port is selected in the Windows driver. Check that the printhead’s harness connector is well connected with the printhead, and reconnect it if necessary after turning off the printer. Finally, ensure your program has a PRINT command at the end of the file and that each command line ends with CRLF.
A
Abigail MillerAug 31, 2025
How to fix incorrect printing position of small label on TSC Barcode Reader?
- P
  Patricia GarzaAug 31, 2025
  If the printing position of a small label is incorrect on your TSC Barcode Reader, it could be due to several reasons. Calibrate the sensor sensitivity again. Set the correct label size and gap size. Fine-tune the parameter of Shift Y by pressing [Menu] [Setting] [Shift Y]. If using BarTender software, set the vertical offset in the driver.
K
Kelly HernandezAug 29, 2025
What to do if my TSC MH340 Barcode Reader displays 'No Paper'?
- P
  patricia84Aug 30, 2025
  If your TSC Barcode Reader displays 'No Paper', it means you are either running out of labels or the label is installed incorrectly, or the gap/black mark sensor is not calibrated. Supply a new label roll, refer to the user’s manual to reinstall the label roll, or calibrate the gap/black mark sensor.
T
Teresa WalkerAug 27, 2025
What to do if TSC MH340 shows 'No Ribbon'?
- J
  James SullivanAug 28, 2025
  If your TSC Barcode Reader indicates 'No Ribbon', it means that you are either running out of ribbon or the ribbon is installed incorrectly. Supply a new ribbon roll or refer to the user’s manual for instructions on how to reinstall the ribbon correctly.
A
ahansenAug 26, 2025
How to fix irregular printing on TSC MH340 Barcode Reader?
- R
  Roger MartinezAug 27, 2025
  Irregular printing on your TSC Barcode Reader might be due to the printer being in Hex Dump mode. Turn the printer off and on to exit the dump mode. Alternatively, the RS-232 setting might be incorrect, so reset the Rs-232 setting.
K
Kaitlyn JohnsonAug 25, 2025
How to resolve paper jam issue with TSC MH340 Barcode Reader?
- S
  Sharon RossAug 25, 2025
  A paper jam in your TSC Barcode Reader can occur if the gap/black mark sensor is not set properly. Calibrate the media sensor. Ensure the label size is set correctly. Remove any labels stuck inside the printer mechanism.
B
bethanymorrisAug 22, 2025
What to do if my TSC Barcode Reader skips labels when printing?
- A
  Alicia RoseAug 22, 2025
  If your TSC Barcode Reader is skipping labels, it might be due to a few reasons. First, check if the label size is set up correctly. If not, specify the correct label size. Also, the sensor sensitivity might not be set properly. Calibrate the sensor using Auto Gap or Manual Gap options. Finally, the media sensor could be covered with dust. Clear the GAP/Black mark sensor with a blower.

TSC MH340 Specifications

General

Print technology	Direct thermal / Thermal transfer
Maximum resolution	300 x 300 DPI
Maximum printing width	104 mm
Display type	LCD
Product color	Black
Built-in display	Yes
Display resolution	320 x 240 pixels
Maximum media length	11430 mm
Maximum roll diameter	203.2 mm
Supported paper width	20 - 114 mm
AC input voltage	100 - 240 V
Power source type	AC
AC input frequency	50 - 60 Hz
Sustainability certificates	ENERGY STAR
Storage temperature (T-T)	-40 - 60 °C
Operating temperature (T-T)	5 - 40 °C
Storage relative humidity (H-H)	10 - 90 %
Operating relative humidity (H-H)	25 - 85 %
Wi-Fi	-
Serial interface type	RS-232
Connectivity technology	Wired & Wireless
Ethernet LAN data rates	10, 100 Mbit/s
Flash memory	512 MB
Storage media	Flash
Internal memory	256 MB
Built-in barcodes	1D, 2D, AZTECCODE, Code 11, Code 128 (A/B/C), Code 39, Code 49, Code 93, Code-128 Codabar Library, Data Matrix, EAN128, EAN13, EAN8, GS1 DataBar, Interleaved 2/5, MaxiCode, MicroPDF417, PDF417, QR Code, UPC-A, UPC-E
Compatible memory cards	MicroSD (TransFlash)
Page description languages	TSPL-EZ

Weight and Dimensions

Depth	502 mm
Width	276 mm
Height	326 mm

Summary

Printer Operation Overview

Operator Control and Interface

Explanation of LEDs, keypads, touch screen, and power-on utilities.

Printer Setup Procedures

Initial Printer Setup

Physical setup of the printer and connecting it to a computer.

Loading Media and Ribbon

Instructions for loading ribbon, media, fanfold, peel-off, and rewinder media.

Knob Adjustments for Print Quality

Printhead Pressure Adjustment

Adjusting printhead pressure to ensure optimal print quality.

Ribbon Tension and Wrinkle Control

TSC Console Software Operations

Network Interface Configuration

LCD Menu Functions and Navigation

Setting Configuration Options

Sensor and Interface Management

Advanced Features and Diagnostics

Printer Troubleshooting Guide

Printer Maintenance Procedures

Regulatory Compliance and Approvals

Safety Instructions and RF Warnings

Key safety guidelines, CE statements, and RF exposure information.

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