1. Introduction
This manual provides comprehensive instructions for the installation, operation, and maintenance of your vretti M817 Thermal Receipt Printer. Please read this manual thoroughly before using the printer to ensure proper functionality and longevity. This printer is designed for high-volume environments such as restaurants, retail stores, and hospitals, offering fast and clear receipt printing.
2. Produit terminéview
2.1 Principales caractéristiques
- Blazing-Fast Printing Speed: Delivers ultra-fast printing at 260mm/s, ensuring efficient transaction processing.
- Triple connectivité : Equipped with USB, Serial (RS-232), and Ethernet ports for versatile system integration.
- Compatibilité du système d'exploitation : Supports Windows (XP/7/8/10/11), MacOS, and Linux (CUPS), JavaPOS, and OPOS.
- Cost-Efficient & Green Printing: Thermal technology eliminates the need for ink, toner, or ribbons, reducing operational costs and waste.
- Automatic Cutter: Features an integrated auto-cutter for precise and efficient receipt separation.
- Wall Hanging Design: Includes two hanging holes on the bottom for flexible wall-mount installation.
2.2 Contenu du paquet
Lors du déballage, veuillez vérifier que tous les éléments suivants sont inclus :

Figure 2.2.1: Package Contents. Includes the vretti M817 Thermal Receipt Printer, paper roll, serial cable, power cable, thermal paper, user manual, and USB flash drive.
- vretti M817 Thermal Receipt Printer
- Thermal Paper Roll (80mm x 30mm)
- Câble série
- Câble d'alimentation
- Adaptateur
- Manuel d'utilisation
- USB Flash Drive (containing drivers and digital manual)
- Papier d'essai
3. Installation
3.1 Câbles de connexion
Connect the necessary cables to the rear panel of the printer as shown below:

Figure 3.1.1: Printer Rear Panel Connections.
- Connexion électrique : Connect the power adapter to the printer's power port and then plug the power cord into a suitable electrical outlet.
- Connexion USB : For direct connection to a computer, insert the USB cable into the printer's USB port and the other end into your computer's USB port.
- Serial Connection (RS-232): If using a serial interface, connect the serial cable to the printer's serial port and your computer's serial port.
- Connexion Ethernet (LAN) : Pour imprimer en réseau, connectez un câble Ethernet au port LAN de l'imprimante et à votre routeur ou commutateur réseau.
- Connexion du tiroir-caisse : Connect the cash drawer cable to the designated cash drawer port on the printer.
3.2 Installation du rouleau de papier
Follow these steps to install the thermal paper roll:

Figure 3.2.1: Paper Roll Loading.
- Gently push the cover open button to open the printer's top cover.
- Insert the thermal paper roll into the paper compartment. Ensure the paper feeds from the bottom of the roll and the printing side (thermal side) is facing down, towards the print head.
- Pull a small amount of paper out past the cutter mechanism.
- Fermez fermement le couvercle de l'imprimante jusqu'à ce qu'il s'enclenche.
3.3 Installation du pilote
The printer supports various operating systems. Drivers are provided on the included USB flash drive.
- Insert the provided USB flash drive into your computer.
- Locate the driver folder corresponding to your operating system (Windows, MacOS, or Linux).
- Follow the on-screen instructions to install the printer drivers. For Linux, refer to the CUPS setup guide on the USB drive.
4. Mode d'emploi
4.1 Impression de base
Once the printer is set up and drivers are installed, you can begin printing receipts:

Figure 4.1.1: High-Definition Printing.
- Assurez-vous que l'imprimante est allumée et connectée à votre ordinateur ou à votre réseau.
- Open your Point of Sale (POS) software or application.
- Initiate a print command from your software. The printer will process the data and print the receipt at high speed.
- The integrated auto-cutter will automatically cut the receipt after printing.
4.2 LED Indicators and Buttons
- Lumière de puissance: S'allume lorsque l'imprimante est mise sous tension.
- Voyant d'erreur : Flashes or illuminates to indicate an error condition (e.g., paper out, cover open, print head overheating).
- Lumière en papier : Indicates the status of the paper roll.
- Bouton ALIMENTATION : Press this button to manually feed paper. It can also be used to reset the cutter in certain error conditions.
4.3 Cash Drawer Operation
When a cash drawer is connected to the printer, it will typically open automatically upon a print command from your POS software. Ensure your software is configured to send the appropriate signal to the printer for cash drawer activation.
5. Entretien
5.1 Nettoyage de l'imprimante
Un nettoyage régulier permet de maintenir la qualité d'impression et de prolonger la durée de vie de l'imprimante :
- Tête d'impression: Turn off the printer and allow the print head to cool. Use an alcohol swab (70% isopropyl alcohol) to gently wipe the print head surface. Allow it to dry completely before use.
- Parcours papier : Utilisez un chiffon doux et sec pour enlever toute poussière ou débris de papier du chemin du papier.
- Extérieur: Essuyez l'extérieur de l'imprimante avec un chiffon doux et sec.amp tissu. Évitez d'utiliser des produits chimiques agressifs.
5.2 Protection contre la surchauffe
The vretti M817 is equipped with an over-temperature protection mechanism. If the print head becomes too hot during continuous operation, the printer may temporarily pause printing to prevent damage. Allow the printer to cool down for a few minutes before resuming operation.
6. Dépannage
Cette section aborde les problèmes courants que vous pourriez rencontrer :
- L'imprimante ne répond pas :
- Vérifiez que le câble d'alimentation est correctement branché et que l'imprimante est allumée.
- Verify that the USB, Serial, or Ethernet cable is properly connected to both the printer and the host device.
- Check if the correct printer drivers are installed and selected in your operating system and application.
- Paper Jam / Cutter Stuck:
- Ouvrez le capot de l'imprimante et retirez soigneusement tout papier coincé.
- If the cutter is stuck, press the FEED button or restart the printer to attempt a reset. Do not force the cover open if the cutter is stuck; gently turn the gear to reset the cutter mechanism.
- Poor Print Quality / Blank Receipts:
- Ensure you are using thermal paper and it is loaded with the printing side facing down.
- Nettoyez la tête d'impression comme décrit dans la section Maintenance.
- Check if the thermal paper roll is old or damaged.
- Cash Drawer Not Opening:
- Verify the cash drawer cable is securely connected to the printer.
- Confirm that your POS software is configured to send the correct command to open the cash drawer.
For further assistance, refer to the detailed troubleshooting guide on the provided USB flash drive or contact vretti customer support.
7. Spécifications
| Fonctionnalité | Spécification |
|---|---|
| Modèle | M817 |
| Dimensions du produit (P x L x H) | 7.4" x 5.5" x 5.5" (18.8 cm x 14 cm x 14 cm) |
| Poids de l'article | 2.2 livres (1 kilogramme) |
| Technologie d'impression | Thermique |
| Vitesse d'impression maximale (monochrome) | 260 mm/s |
| Résolution d'impression maximale en noir et blanc | 203 DPI |
| Taille maximale du support | 80 mm |
| Presse écrite | Papier thermique (uni) |
| Technologie de connectivité | USB, Serial Interface (RS-232), Ethernet (LAN) |
| Impression recto verso | Simplex (No dual-sided printing) |
| Appareils compatibles | Ordinateurs portables, PC |
| Systèmes d'exploitation pris en charge | Windows (XP/7/8/10/11), MacOS, Linux (CUPS), JavaPOS, OPOS |
| Fonctions d'imprimante supplémentaires | Print Only, Auto Cutter, Cash Drawer Support |
8. Vidéo officielle du produit
Video 8.1.1: vretti M817 Thermal Receipt Printer Overview. This video demonstrates the vretti M817 Thermal Receipt Printer, showcasing its various connection ports, multi-operating system compatibility, high-speed printing capabilities, and crystal-clear receipt output.
9. Garantie et assistance
For warranty information or technical support, please refer to the documentation included with your purchase or contact vretti customer service through their official website. Ensure you have your product model (M817) and purchase details available when seeking support.





