Įvadas
This manual provides detailed instructions for the setup, operation, maintenance, and troubleshooting of your vretti Bluetooth Thermal Shipping Label Printer, Model 420B. Please read this guide thoroughly to ensure proper use and optimal performance of your device.
Produktas baigtasview
The vretti 420B is a compact and efficient thermal label printer designed for various labeling needs. It supports both wired (USB) and wireless (Bluetooth) connectivity, offering flexibility for different operating environments.
Pagrindinės funkcijos:
- Bluetooth ryšys: Print wirelessly from Android, iPhone, iPad, and Windows devices. (Note: Mac OS devices are not supported via Bluetooth).
- Didelės spartos spausdinimas: Capable of printing up to 75 labels per minute (152mm/s) at 203 dpi resolution for clear black and white text and images.
- Universalus medijos palaikymas: Compatible with various thermal direct label types including Continuous, Gap, Black Mark, Fan-Fold, and Punched Hole.
- Adjustable Label Sizes: Supports label widths from 25.4mm to 115mm (0.78 to 4.6 inches), accommodating shipping labels, address labels, barcode labels, and more.
- Kelių platformų suderinamumas: Works with major transportation and e-commerce platforms such as UPS, eBay, Amazon, Shopify, FedEx, DHL, and Uber Eats. Compatible with Windows, Mac OS, and Linux systems via USB.
- Ink-Free Thermal Printing: Utilizes thermal printing technology, eliminating the need for ink cartridges or toner.
- Automatinis etikečių aptikimas: Features auto label detection and error reprint technology for high-precision printing.
- Built-in Label Bin: Designed with an internal label bin, removing the need for an external label holder.
Sąranka
1. Išpakavimas ir komponentai
Atsargiai išpakuokite spausdintuvą ir patikrinkite, ar yra visi komponentai:
- vretti 420B Thermal Label Printer
- Maitinimo adapteris ir maitinimo laidas
- USB kabelis
- Greitos pradžios vadovas
- Saugos vadovas
- Sample Etiketės
- USB Adapter for Mac (if included)

Image: The vretti 420B printer shown with its power adapter, USB cable, and sample labels, illustrating the complete package contents.
2. Fizinis ryšys
- Prijunkite maitinimo adapterį prie spausdintuvo maitinimo prievado.
- Įkiškite maitinimo laidą į sieninį lizdą.
- For USB connection, connect one end of the USB cable to the printer and the other end to your computer.
- Turn on the printer using the power switch located at the back.

Image: The vretti 420B printer connected to a laptop, demonstrating the USB connection setup.
3. Driver Installation (for USB Printing)
For Windows, Mac OS, or Linux systems, download the appropriate driver from the official vretti websvebsaitą. Vykdykite ekrane pateikiamus nurodymus, kad užbaigtumėte diegimą.
- Visit the vretti label printers official websvetainę.
- Locate and download the driver for Model 420B compatible with your operating system.
- Paleiskite diegimo programą ir vykdykite instrukcijas.
4. Mobile App Installation (for Bluetooth Printing)
For printing from Android, iPhone, or iPad devices via Bluetooth, install the dedicated mobile application:
- „Android“: Ieškokite "4barcode Edit" in the Google Play Store.
- „iPhone“ / „iPad“: Ieškokite "4barlabel" in the Apple App Store.
- Įdiekite programą savo įrenginyje.

Image: A smartphone screen showing the "4barcode" app available on Google Play and the App Store, with the vretti printer connected wirelessly.
Naudojimo instrukcijos
1. Etikečių įkėlimas
- Atidarykite spausdintuvo dangtį.
- Adjust the movable guides to match the width of your labels.
- Insert the thermal labels into the printer with the printable side facing up. Ensure the labels are fed smoothly and correctly.
- Close the printer cover. The printer will automatically detect and calibrate the label size.

Image: Hands loading fan-fold labels into the vretti 420B printer, highlighting the adjustable guides for different label widths.
2. Printing via USB (Windows/Mac/Linux)
- Ensure the printer is connected to your computer via USB and the driver is installed.
- Atidarykite dokumentą arba vaizdą, kurį norite spausdinti.
- Select the vretti 420B printer from your printer options.
- Adjust print settings (e.g., label size, orientation, copies) as needed.
- Pradėkite spausdinimo užduotį.
3. Printing via Bluetooth (Android/iPhone/iPad)
- Įsitikinkite, kad jūsų mobiliajame įrenginyje įjungtas „Bluetooth“.
- Open the "4barcode Edit" (Android) or "4barlabel" (iOS) app.
- Within the app, connect to your vretti 420B printer via Bluetooth.
- Select the type of content you want to print (e.g., PDF, image, custom label).
- Customize your label using the app's editing features (text, icons, images, barcodes, QR codes).
- Adjust print settings (e.g., width/height, copies, print quality, print speed).
- Norėdami išsiųsti užduotį į spausdintuvą, palieskite „Spausdinti“.

Image: The vretti 420B printer in action, producing a shipping label, while a smartphone shows the connected mobile application.
4. Etikečių pritaikymas
The mobile application provides extensive customization options:
- Tekstas: Add and format text with various fonts, sizes, and styles.
- Icons/Images: Insert pre-loaded icons or upload your own images.
- Brūkšniniai kodai / QR kodai: Generuokite ir spausdinkite standartinius brūkšninius kodus ir QR kodus.
- Šablonai: Utilize pre-designed templates for common label types (e.g., address labels, product labels, thank you stickers).

Image: A display of diverse labels printed by the vretti 420B, showcasing its versatility for different shapes and purposes.
Priežiūra
Reguliarus spausdintuvo aptarnavimas užtikrina jo ilgaamžiškumą ir optimalų veikimą.
- Spausdinimo galvutės valymas: Use an alcohol wipe to gently clean the print head if print quality degrades or lines appear. Ensure the printer is off and cooled down before cleaning.
- Veleno volelio valymas: Regularly clean the rubber roller to prevent dust and adhesive residue buildup, which can affect feeding.
- Saugykla: Store the printer in a clean, dry environment away from direct sunlight and extreme temperatures.
- Etiketės kokybė: Use high-quality thermal labels to prevent damage to the print head and ensure clear prints.
Trikčių šalinimas
Čia pateikiami dažniausiai pasitaikančių problemų, su kuriomis galite susidurti, sprendimai:
| Problema | Galima priežastis | Sprendimas |
|---|---|---|
| Blank Labels | Labels loaded incorrectly (printable side down). | Ensure thermal labels are placed with the printed side facing up. |
| Poor Print Quality (faint/unscannable) | Low print density, dirty print head, or low-quality labels. | Increase print density in settings. Clean the print head with an alcohol wipe. Use recommended thermal labels. |
| Spausdintuvas nereaguoja | Loose cable connection, incorrect driver, or Bluetooth not paired. | Check all cable connections. Reinstall printer driver. Ensure Bluetooth is correctly paired in the app. |
| Etiketės netiekiamos tinkamai | Incorrect label size setting, misaligned guides, or label jam. | Verify label size settings in the app/driver. Adjust label guides. Clear any jammed labels. |
Specifikacijos
- Modelis: 420B
- Prekinis ženklas: vretti
- Spausdinimo technologija: Šiluminis
- Ryšys: Bluetooth, USB
- Spausdinimo raiška: 203 dpi (juodai balta)
- Max Print Speed (Monochrome): 72 labels/minute (152mm/s)
- Maksimalus laikmenos dydis: 4x6 colių
- Supported Label Width: 25.4 mm–115 mm (0.78–4.6 colio)
- Gaminio matmenys: 21 x 17 x 15 cm; 2.09 kg
- Ypatingos savybės: High Speed Printing, Adjustable Width, Versatile Media Support, Multi-Platform Compatibility, Automatic Label Detection.
Garantija ir palaikymas
For warranty information or technical assistance, please refer to the contact details provided in your Quick Start Guide or visit the official vretti website. Ensure you have your product model number (420B) and purchase details ready when contacting support.
Kontaktinė informacija:
- El. paštas: support@vretti.com
- Websvetainė: www.vretti.com





