1. Producte acabatview
The vretti 4B-2054L is a high-efficiency thermal shipping label printer designed for various business needs. It utilizes direct thermal printing technology, eliminating the need for ink or toner, which offers cost savings and simplifies maintenance. This printer is compatible with a wide range of label sizes and operating systems, making it a versatile solution for shipping, barcode, and ID labeling.

Figure 1.1: The vretti 4B-2054L Thermal Shipping Label Printer actively printing a label. This image showcases the compact design and the output of a standard shipping label.
Característiques principals:
- Adjustable Label Width: Supports label widths from 1" (25.4mm) to 4.5" (115mm), with a maximum print width of 4.25" (108mm) and maximum print length of 70". Ideal for 4"x6" shipping labels, warehouse labels, barcode labels, and mailing labels.
- Connectivitat àmplia: Compatible with Windows XP, 7, 8, 10, and newer, Mac, and Linux systems via USB connection.
- Ink-Free Operation: Utilizes direct thermal printing technology, requiring no ink or TTR ribbon, which reduces operational costs.
- Compatibilitat amb plataformes àmplies: Works seamlessly with major shipping and e-commerce platforms such as Amazon, eBay, Shopify, Etsy, PayPal, UPS, USPS, and Stamps.com.
2. Contingut del paquet
Upon unboxing your vretti Shipping Label Printer, please verify that all the following items are included in the package:

Figure 2.1: All components included in the vretti 4B-2054L printer package. Items are numbered for easy identification: 1. Barcode Printer, 2. User Manual, 3. U Disk, 4. Power Adapter, 5. USB Cable, 6. Fixing Plate (x2), 7. Power Cord, 8. Paper Roll Shaft.
- vretti 4B-2054L Thermal Label Printer (x1)
- Cable d'alimentació (x1)
- Cable USB (x1)
- U Disk (containing drivers and installation guide) (x1)
- Installation Guide (x1)
- Placa de fixació (x2)
- Paper Roll Shaft (x1)
3. Components i ports del producte
Familiarize yourself with the various parts and connection ports of your vretti label printer:

Figure 3.1: Annotated diagram of the vretti 4B-2054L printer highlighting key external features and rear ports. These include the Viewable Window for label monitoring, the Feed Button with indicator light, the Printer Open Button for accessing the label compartment, the Power Switch, Power Input, and USB Port for connectivity.
- Viewable Window: Allows you to monitor the remaining label supply.
- Feed Button (Indicator Light): Used to feed labels manually and indicates printer status.
- Printer Open Button: Releases the top cover to load or adjust labels.
- Interruptor d'alimentació: Encén o apaga la impressora.
- Entrada d'alimentació: Connects the power adapter to the printer.
- Port USB: Connects the printer to your computer.
4. Guia de configuració
4.1. Connexió de la impressora
- Connect the power cord to the power adapter, then plug the adapter into the printer's Power Input port.
- Connecteu l'altre extrem del cable d'alimentació a una presa de corrent.
- Connect the USB cable to the printer's USB Port and the other end to an available USB port on your computer.
- Turn on the printer using the Power Switch.
4.2. Instal·lació del controlador
The included U disk contains the necessary drivers for Windows, Mac, and Linux operating systems, along with an installation guide and a "How to Start" video to assist you.
- Insert the U disk into your computer's USB port.
- Locate and run the appropriate driver installer for your operating system (Windows, Mac, or Linux).
- Follow the on-screen instructions. During installation, select "4B-2054L" as the printer model if prompted.
- Completa el procés d'instal·lació.

Figure 4.1: The vretti 4B-2054L printer is compatible with Windows, Mac OS, and Linux operating systems. Please note that it is not compatible with Chromebooks.
4.3. Carregant etiquetes
The printer supports both roll labels and fanfold labels. Ensure labels are loaded correctly for optimal printing.
- Press the Printer Open Button to open the top cover.
- Adjust the label guides to match the width of your labels. The printer supports label widths from 0.78" (20mm) to 4.6" (118mm).
- Insert the labels into the printer, ensuring the printable side is facing up and the labels are aligned with the guides.
- Tanqueu la coberta superior fermament fins que encaixi al seu lloc.
- The printer will automatically detect the label size and calibrate. If not, press the Feed Button once to feed a blank label and calibrate.

Figure 4.2: This diagram demonstrates the adjustable label size feature of the vretti 4B-2054L printer. It shows how to set the minimum label width of 0.78" (20mm) and the maximum label width of 4.6" (118mm) by adjusting the internal guides.
5. Instruccions de funcionament
5.1. Imprimir una etiqueta
Once the printer is set up and drivers are installed, you can print labels from your preferred application or platform.
- Open the document or label you wish to print (e.g., a shipping label from Amazon, eBay, Shopify, etc.).
- Seleccioneu "Imprimir" al menú de l'aplicació.
- Choose the "vretti 4B-2054L" printer from the list of available printers.
- Ensure the paper size settings in your print dialogue match the label size you have loaded (e.g., 4"x6").
- Feu clic a "Imprimeix" per enviar la feina a la impressora.

Figure 5.1: The vretti 4B-2054L printer is compatible with a wide array of shipping and sales platforms, including Amazon, eBay, Shopify, UPS, USPS, DHL, FedEx, Etsy, Poshmark, Wish, Lazada, Walmart, AliExpress, ShipWorks, Easyship, EasyPost, Stamps.com, ShipWire, Endicia, J&T Express, Shippo, ShipStation, and Flash Express, streamlining your label printing process.
6. Manteniment
Regular maintenance ensures the longevity and optimal performance of your vretti label printer. Since it's a thermal printer, there's no ink or cartridge replacement needed.

Figure 6.1: The vretti 4B-2054L is a thermal label printer, which means it operates without the need for ink or cartridges, significantly reducing ongoing costs and maintenance complexity.
6.1. Neteja del capçal d'impressió
To maintain print quality, clean the print head periodically, especially if you notice faded or incomplete prints.
- Apagueu la impressora i desconnecteu el cable d'alimentació.
- Obriu la coberta superior de la impressora.
- Espereu uns minuts perquè el capçal d'impressió es refredi si la impressora s'ha utilitzat recentment.
- Gently wipe the print head surface with an alcohol swab or a lint-free cloth lightly dampamb alcohol isopropílic.
- Deixeu que el capçal d'impressió s'assequi completament abans de tancar la coberta i tornar a connectar l'alimentació.
6.2. Neteja general
Wipe the exterior of the printer with a soft, dry cloth. Avoid using abrasive cleaners or solvents.
7. Solució De Problemes
This section addresses common issues you might encounter with your vretti label printer. If the problem persists, please contact technical support.
| Problema | Causa possible | Solució |
|---|---|---|
| Printer not responding / No print |
|
|
| Mala qualitat d'impressió / Impressions descolorides |
|
|
| Labels not feeding correctly / Jamming |
|
|
8. Especificacions
| Característica | Detall |
|---|---|
| Marca | vretti |
| Nom del model | 4B-2054L |
| Tecnologia de connectivitat | USB |
| Tecnologia d'impressió | Tèrmica |
| Característica especial | USB connection, adjustable label size |
| Color | Negre |
| Sortida de la impressora | Monocrom |
| Velocitat màxima d'impressió (monocrom) | 72 ppm |
| Pes de l'article | 1.3 quilos |
| Adjustable Label Size | 1" (25.4mm) to 4.5" (115mm) width |
| Amplada màxima d'impressió | 4.25" (108 mm) |
| Longitud màxima d'impressió | 70" |
9. Garantia i suport tècnic
vretti is committed to providing excellent customer service and technical support for your printer. While specific warranty details are not provided in this manual, a professional technical team is available to assist you with any issues or questions.
For technical assistance, please reach out to the vretti support team via Email, WhatsApp, Skype, or remote desktop support. Refer to the contact information provided in your product packaging or on the official vretti weblloc.





