Tharo Systems H-400 Series

Questions and Answers

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Nicholas VaughnAug 19, 2025
What to do if the LED light turns red on my Tharo Systems H-400 after printing?
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  Deborah FinleyAug 19, 2025
  If the LED light on your Tharo Systems Printer turns red after printing stops, it could be due to several reasons. First, check for any software setting or program command errors. Next, verify that labels or ribbon are not depleted and replace them if necessary. Also, check for any label stock jams. Ensure that the Printhead Mechanism is properly closed and that the printhead is correctly positioned. Additionally, make sure the sensor isn't blocked by paper or label. Finally, if your printer has a cutter, confirm that it is functioning correctly.
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Robert DukeAug 21, 2025
How to fix smudged printouts on a Tharo Systems H-400 Printer?
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  Clayton MarshAug 21, 2025
  If your Tharo Systems Printer is producing a smudged or blurry printout, start by checking the print darkness setting. Also, verify whether the Printhead is dirty and clean it if necessary.
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John BarryAug 25, 2025
Why is my Tharo Systems Printer printing blank labels?
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  wdavisAug 25, 2025
  If you've started a print job on your Tharo Systems Printer but nothing is printing on the label, begin by checking that the ribbon is installed correctly, with the inked side facing the label media. Also, make sure that you've selected the correct printer driver and the correct label stock and print mode in your settings.
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rebecca61Aug 26, 2025
Why is my Tharo Systems H-400 skipping labels?
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  Linda MitchellAug 26, 2025
  If labels are skipped while printing with your Tharo Systems Printer, check the label height setting for errors. Also, verify that the sensor isn't covered by paper or is dirty. Clean the sensor if needed.
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Robert AndersonAug 28, 2025
What to do if labels jam in my Tharo Systems H-400?
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  David GreenAug 28, 2025
  If labels are jamming when printing with your Tharo Systems Printer, clear the label jam. Ensure that the Printhead is clean.
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Paul SanchezAug 30, 2025
How to adjust print position on my Tharo Systems H-400 Printer?
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  lscottAug 30, 2025
  If the printout from your Tharo Systems Printer is not in the desired position, start by checking if the sensor is covered by paper or is dirty. Clean the sensor if necessary. Ensure that the label roll edge is aligned with the Label Width Guide.
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Crystal WattsSep 1, 2025
Why is my Tharo Systems Printer only printing part of the label?
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  Veronica FordSep 1, 2025
  If only part of the label is being printed by your Tharo Systems Printer, first check if label or ribbon is stuck on the Printhead. Next, check if the application software has errors, and verify the start position setting for any mistakes. Also, inspect the ribbon for wrinkles and ensure the Ribbon Supply Shaft isn't creating friction with the platen roller. Finally, check if the power supply is within the voltage range.
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Katrina PowersSep 4, 2025
How to fix incomplete prints on my Tharo Systems H-400 Printer?
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  Sherri HendersonSep 4, 2025
  If a part of the label is not printed completely by your Tharo Systems Printer, begin by checking if the Printhead is dirty. Use the internal command “~T” to perform a Test Print and check if the Printhead can print across its entire width. Also, check the media quality.
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Ashley ZimmermanSep 6, 2025
What causes the cutter on my Tharo Systems H-400 Printer to cut crooked?
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  sarah99Sep 6, 2025
  If the cutter on your Tharo Systems Printer did not cut straight, check if the label stock is installed correctly.
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Scott CopelandSep 8, 2025
Why isn't the cutter on my Tharo Systems H-400 Printer cutting the label?
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  kellynicholsSep 8, 2025
  If the cutter on your Tharo Systems Printer is not cutting the label successfully, verify that the label thickness does not exceed 0.16mm (.006”).

Summary

Product Overview

General Information

Core description of THARO H-400/H-600 series printers and their capabilities.

Printer Options

Details on optional accessories like cutters, rewind modules, and software.

Technical Specifications

Lists detailed technical specifications for H-400 and H-600 printer models.

Safety and Handling

General Safety Tips

Crucial precautions for safe operation, handling, and maintenance of the printer.

Printer Setup and Operation

Initial Connection and Setup

Steps for connecting the printer to power and a computer via various interfaces.

USB Installation Guide

Detailed guide for installing drivers and connecting via USB.

Control Panel Functions

Explains control keys, LED indicators, and basic printer operation.

Setting Mode Configuration

Guide to navigating and changing printer settings via the control panel menu.

Loading Media

Ribbon Installation

Step-by-step instructions for installing the thermal transfer ribbon correctly.

Label Installation

Guide on how to load label stock into the printer.

Installing Optional Accessories

H-400 Internal Rewind Module

Instructions for installing the internal rewind module on H-400 series printers.

H-600 Series Stripper Module

Procedures for installing the stripper module on H-600 series printers.

Cutter Installation

Guide for installing the optional cutter accessory on the printer.

Advanced Printer Features

Keyboard Standalone Printing

How to use the printer with a PS/2 keyboard for printing without a PC.

Downloading Formats with EASYLABEL

Instructions for downloading label formats to printer memory using EASYLABEL software.

Communication Interfaces

Connecting the Printer

Details on using Parallel, Serial, USB, and PS/2 interfaces for printer connectivity.

Troubleshooting and Maintenance

Printer Diagnostics

Procedures for performing self-tests and using dump mode for troubleshooting.

Error Messages and Solutions

Lists common LCD error messages and provides solutions for identified problems.

Printhead Maintenance

Steps for cleaning, adjusting printhead position, balance, and tension.

Firmware and Font Management

Instructions for upgrading printer firmware and downloading TrueType fonts.

Cutter Care and Repair

Procedures for clearing cutter jams and cleaning the cutter blade.