RONGTA logoRP421A Direct Thermal Barcode Label Printer
User Manual

RONGTA RP421A Direct Thermal Barcode Label Printer

Product Introduction

Thank you for purchasing the label printer produced by our company.
This label printer provides you with safe, reliable, and efficient printing quality at a reasonable economic price. At the same time, the Printer is widely used in supermarkets, the Catering industry, the clothing industry, the warehousing industry, etc. due to its super functions and easy operation.

Main Features

  • High printing quality
  • Low noise
  • The attractive appearance
  • Reasonable structure, simple use and maintenance
  • Intelligent detection and positioning
  • Auto feed and retreat paper
  • Simple operation
  • Label off intelligent handling function
  • Fast printing, saving time
  • Superior heat dissipation can handle a heavy printing workload

Safety Instructions

Before operating and using the printer, please carefully read the following items and strictly observe the use rules.
Safety warning
RONGTA RP421A Direct Thermal Barcode Label Printer - cautionThe print head will become very hot during printing, please do not touch the printhead and peripheral parts during printing and printing just finished.
RONGTA RP421A Direct Thermal Barcode Label Printer - caution 1Please do not touch the printhead and connectors, in case that static damages the printer head.

Instructions

  RONGTA RP421A Direct Thermal Barcode Label Printer - caution 2Warnings: Violating following instructions may cause serious injury or death.
1) Do not plug several products in one porous power outlet.

  1. This may cause overheating and a fire
    • If the plug is wet or dirty, dry or wipes it before using.
    • If the plug does not fit perfectly to the outlet, do not plugin.
    • Be sure to use an only standardized porous power outlet
  2. You must use the supplied adapter.
    • It is dangerous to use other adapters.
  3. Do not pull the cable by pulling.
    • This may damage the cable or cause a fire.
  4. Do not plug in or unplug with your wet hands.
    • You may be electrocuted.
  5. Do not bend the cable by force or leave it under any heavy object.
    • A damaged cable may cause a fire.

RONGTA RP421A Direct Thermal Barcode Label Printer - caution 3Note: Violating following instructions may cause slight damage to the appliance.

  1. If you observe a strange smoke, odor, or noise from the printer, unplug it before taking the following measures.
    • Switch off the printer and unplug the set from the mains.
    • After the disappearance of the smoke, call your dealer to repair it.
  2. Install the printer on a stable surface.
    •If the printer falls down, it may be broken and you may hurt yourself.
  3. Use the approved accessories only and do not try to disassemble, repair or remodel it by yourself.
    • Call your dealer when you need these services.
    • Do not touch the blade of the auto-cutter.
  4. Do not let water or other foreign objects drop into the printer.
    • If this happened, switch off and unplug the printer before calling your dealer.
  5. Do not use the printer when it is out of order. This can cause a fire or electrocution.
    • Switch off and unplug the printer before calling your dealer.
  6. Other considerations:
    • Place the printer on a solid and even base so that it cannot fall.
    • Leave enough space around the printer for operation and maintenance.
    • Keep all liquids away from the printer.
    • Do not expose the printer to high temperatures, direct sunlight or dust.
    • Ensure the printer is connected to a socket with the correct mains voltage.
    • Switch off the printer POWER supply when it’s not in use for a long time.
    • To ensure the printing quality and reliability, suggest using the same quality or recommend a paper supplier.
    • Pis. switch off the POWER supply when connecting/disconnecting all the ports or it will cause damage to the printer control circuit.
    • Never carry out maintenance or repair work yourself. Always contact a qualified service Technician.
    • Keep this User Manual in a place that is easily accessible at all times.

Other Precautions

The copyright for this user manual and various other manuals is the property of our company. Any copying or conversion into electronic form and saving of this material without express written permission is strictly prohibited. Use of the information contained in this manual is not subject to any patent liability. This manual has been prepared with utmost care and attention to detail but may contain certain errors and/or omissions. Our company is not legally liable for any damages resulting from the use of the information in this manual. Our company and its affiliates are not legally liable (the United States excluded) for any damages, loss, costs, and/or expenses that result from the breakdown,  malfunction, and/or misuse of the product due to violation or neglect of the operation and maintenance information and instructions provided by our company, as well as from he unauthorized alteration, repair, and/or modification of the product by the user and/or third party. We are not legally liable for any damages and/or issues resulting from the use of options and/or parts that are not authentic or authorized products.

Appearance and Components

FrontView

RONGTA RP421A Direct Thermal Barcode Label Printer - front view

RearView

RONGTA RP421A Direct Thermal Barcode Label Printer - rear view

Inside View

RONGTA RP421A Direct Thermal Barcode Label Printer -inside view

Application Field

  • Cashier system of supermarkets
  • Cashier system of the Catering industry,
  • Cashier system of the clothing industry
  • Cashier system of warehousing industry

Technical Parameters

Printing Parameters

RONGTA RP421A Direct Thermal Barcode Label Printer - printing parameters 1

Model RP421A
Printing method Thermal line printer
Paper loading method Easy paper loading/auto paper feeding
Printing speed 127mm/s, (150mm/s optional)
Printing paper width 104mm
Effective resolution 203dpi (300dpi optional)
Paper type Continuous paper, label paper, black label paper, and folded paper
The thickness of printing paper 0.06-0.18mm
Effective printing width Min 38mm Max 112mm
Character size ASCII Font A: 12×24 ASCII Font B: 9×17 Chinese character 24×24
Interface type USB

Print character

RONGTA RP421A Direct Thermal Barcode Label Printer - technicale parameters 1

Type of bar code One-dimensional code: Code 39, 39C, 125, Code 93, ITF25, EAN128. Code 128 Codabar, EAN-8, EAN8+2, EAN8+5, EAN-13, EAN13+2, EAN13+5, UPC-A. UPCA+2, UPCA+5, UPC-E, UPCE+2, UPCE+5 MSIC, ITF14, EAN14, CODE11, POST
QR code: PDF417(optional)
Extended character table CP437, CP850, CP852, CP860, CP863, CP865, CP866 WPC1250, WPC1251, WPC1252, WPC1253, WPC1254

Power supply

Power adapter DC 24V.2.5A

Environmental requirements

Working environment Operating temperature: 0- 45°C, Operating humidity: 20–90%
Storage environment Storage temperature:-10 – 60°C, Storage humidity: 10-90%

Environmental conditions

RONGTA RP421A Direct Thermal Barcode Label Printer - technicale parameters 2

Drive WINXP/WIN7/WIN8/WIN10/Mac/Linux
Print command TSPL/CPCL{optional)/ZPL{optional)
Character printing It supports double-width and double-height printing of AN K characters, custom characters, and Chinese characters; adjusts dot patterns of character spacing for printing;
  • The pictures are for reference only, please subject to practicality

RONGTA RP421A Direct Thermal Barcode Label Printer - caution 4Remark: The interface is optional or customized, and the specific interface is subject to the actual object.

Installation and Operation of Printer

Printer Unpacking

Check the parts:
Before use, make sure the accessories are included in the package(the following picture is an example). If anything is missing, contact the supplier or manufacturer. The specific accessories may not be included depending on the printer model.

RONGTA RP421A Direct Thermal Barcode Label Printer -printer unpacking

RONGTA RP421A Direct Thermal Barcode Label Printer - caution 4The pictures are for reference only, please subject to practicality.

Connecting the Printer

Connect the power line

  1. Confirm that the power switch is in an off (0) state.
  2. Connect the power adapter to the printer.
  3. Connect the power line to the power adapter.
  4. Connect the other end of the power line to a nearby socket.

Use the special power adapter for the printer.
The connection diagram is as follows:

RONGTA RP421A Direct Thermal Barcode Label Printer -connection

Connect the USB cable

  1. Connect the USB cable to the printer.
  2. Connect the USB cable to the PC host.
  3. Turn the power switch to the on (I) state.

RONGTA RP421A Direct Thermal Barcode Label Printer - connectet

Folded Paper Loading
  1. Facing the back of the machine, hold the paper guide with both hands, and adjust the distance between the left and right guides according to the folded paper size.
  2. Insert the folded paper into the paper guide
  3. Confirm that the printer has detected paper feeding, automatically feeds paper, and delivers paper normally

RONGTA RP421A Direct Thermal Barcode Label Printer - folded paper

Handling of Paper Jam

  1. Move the top cover lever forward with both hands and lift the top cover.
  2. Remove the jammed paper from the feeding channel, and check whether the print head has adhesive or carbon deposition. If yes, clean it with an alcohol cloth, remove the wrinkled paper and replace it with new paper.

RONGTA RP421A Direct Thermal Barcode Label Printer - handling

Rongta Technology (Xiamen) Group Co., Ltd.
www.rongtatech.com

Documents / Resources

RONGTA RP421A Direct Thermal Barcode Label Printer [pdf] User Manual
RP421A, 2AD6G-RP421A, 2AD6GRP421A, RP421A Direct Thermal Barcode Label Printer, Direct Thermal Barcode Label Printer

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