1. Product Overview
The v4ink BENTSAI BT-HH6105B2 is a portable TIJ handheld inkjet printer designed for versatile printing on various surfaces. It supports high-resolution printing of text, numbers, QR codes, barcodes, logos, and pictures.
- Flexible Small Size Printing: Supports 1 to 5 lines of printing, up to 0.5 inches (12.7 mm) print height, 15.98 inches (406mm) maximum length of single printing with 600DPI resolution. Easily upload jpeg, png and bmp pictures to the handheld printer for easy marking.
- Print Any Content: Bentsai B2 handheld printer gun prints small character text, date, batch number, QR code, DM code, barcode, logo, pictures, etc. Suitable for various industrial scenes and can be used on assembly lines for auto-printing.
- Wide Coding Applications: Can print on any porous and non-porous surfaces including carton, wood, shirts, cement, plastic, metal, aluminum, glass, leather, ceramic and more. No matter the surface is flat or curved, this handheld inkjet printer handles them all.
- Waterproof Quick Drying Ink: Bentsai handheld inkjet printer gun comes with a 42ml black quick-drying and waterproof ink that dries in seconds with clear and crisp prints. One cartridge prints up to 2 million characters. (To prevent ink clogs, please cover the cartridge with its protective cap when not in use.)
- User-friendly Design: Features a 4.3 inch high sensitive LED touch screen with simple UI, this hand held printer is very easy to operate. The machine has an ergonomical handle for easy grisp, supports 25 language settings and with over 8h long-lasting endurance.

Figure 1.1: The v4ink BENTSAI BT-HH6105B2 Handheld Inkjet Printer and its accompanying ink cartridge.
2. Setup Guide
This section outlines the steps to set up your v4ink BENTSAI Handheld Inkjet Printer for first use.
2.1 Unboxing and Components
Carefully unpack all items from the aluminum protective box. Verify that all components are present:
- v4ink BENTSAI B2 Handheld Inkjet Printer
- v4ink BENTSAI BT-2580P Black Ink Cartridge
- Photoelectric Sensor; Metal Positioner; Roller Guide
- Power Adapter; USB Flash Disk; Stylus Pen
- User Manual; Aluminum Protective Box

Figure 2.1: All components included in the v4ink BENTSAI BT-HH6105B2 package.
2.2 Installing the Ink Cartridge
- Open the ink cartridge cover on the printer.
- Carefully insert the v4ink BENTSAI BT-2580P Black Ink Cartridge into the designated slot. Ensure it clicks into place securely.
- Close the ink cartridge cover.
2.3 Powering On and Initial Configuration
- Connect the power adapter to the printer and a power outlet to charge the device. The printer features an 8-hour long-lasting endurance on a full charge.
- Press and hold the power switch to turn on the printer.
- The 4.3-inch high-sensitive LED touch screen will display the user interface.
- Use the stylus pen or your finger to navigate the menu and set initial preferences such as language (supports 25 languages), date, and time.

Figure 2.2: The printer's battery life indicator, highlighting its 8-hour endurance.

Figure 2.3: The intuitive and user-friendly interface of the printer, running on a Linux system.
2.4 Setup Video Guide
Video 2.1: An introductory video demonstrating the setup and key features of the v4ink Handheld Inkjet Series, including component overview, power-on sequence, and basic UI navigation.
3. Operating Instructions
This section details how to operate your v4ink BENTSAI Handheld Inkjet Printer for various printing tasks.
3.1 Creating and Editing Print Content
- From the main menu, select 'Edit' to create new print content or 'Management' to access saved files.
- Choose the type of content you wish to print: Text, QR code, Barcode, Picture, Time, Number, or Tag.
- Enter or import your desired content. For text, use the on-screen keyboard. For images, use the USB flash disk to upload jpeg, png, or bmp files.
- Adjust print parameters such as font size, print height (2.5mm-12.7mm), resolution (up to 600DPI), and print direction as needed.
- Confirm your settings and save the print job.

Figure 3.1: Examples of content types that can be printed, including text, QR codes, barcodes, and images.

Figure 3.2: Close-up view of the high-resolution 600DPI nozzle, capable of printing heights up to 12.7mm.
3.2 Printing on Surfaces
The printer is designed to print on a wide variety of porous and non-porous materials.
- Select the desired print job from the 'Management' menu.
- Position the printer's nozzle close to the surface you wish to print on. For best results, ensure the surface is clean and dry.
- Press the print button located on the handle.
- Smoothly glide the printer across the surface in the desired direction. The printer will automatically apply the ink.
- Allow the quick-drying ink to set for a few seconds.

Figure 3.3: The printer's versatility across materials such as metal, paper, plastic, wood, fabric, glass, and ceramic.

Figure 3.4: The lightweight design of the printer, weighing only 450g, for easy handling.
4. Maintenance
Proper maintenance ensures the longevity and optimal performance of your v4ink BENTSAI Handheld Inkjet Printer.
4.1 Ink Cartridge Care
- To prevent ink clogs, always cover the ink cartridge with its protective cap when not in use.
- If print quality degrades (e.g., blank lines), gently wipe the ink nozzle with an alcohol wipe.
- Store ink cartridges in a cool, dry place away from direct sunlight.
4.2 General Cleaning
- Regularly clean the exterior of the printer with a soft, dry cloth.
- Avoid using abrasive cleaners or solvents that could damage the device.
4.3 Ink Compatibility Guide
Refer to the table below for compatible ink types based on your printer model and firmware version.
| Printer Model | Firmware Version | Solvent-based Ink BB22 Series | Water-based Ink BB21 Series | Solvent-based Ink BT-2580P Series | Water-based Ink BT-2560N Series |
|---|---|---|---|---|---|
| BT-HH6105F | All versions | ✓ | ✓ | ✗ | ✗ |
| BT-HH6105B2 & BT-HH6105B3 | V1069 | ✗ | ✗ | ✓ | ✓ |
| BT-HH6105B2 & BT-HH6105B3 | 1.0.10-3.0.28 | ✓ | ✓ | ✓ | ✓ |
| BT-HH6105B2 & BT-HH6105B3 | Beginning with 4 (e.g. 4.0.34) | ✓ | ✓ | ✗ | ✗ |
BB22 Series: Solvent-based (BB22B, BB22C, BB22M, BB22Y, BB22G, BB22W, BB22S)
BB21 Series: Water-based (BB21B, BB21C, BB21M, BB21Y, BB21G)
BT-2580P Series: Solvent-based (BT-2580P, BT-2581P, BT-2582P, BT-2583P, BT-2584P, BT-2585P, BT-2586P)
BT-2560N Series: Water-based (BT-2560N, BT-2561N, BT-2562N, BT-2563N, BT-2564N)

Figure 4.1: Detailed ink compatibility chart for the BT-HH6105 series printers.
5. Troubleshooting
This section addresses common issues you might encounter with your printer.
5.1 Print Quality Issues (Blank Lines, Fading)
Symptom: Prints appear with blank lines, are faded, or have inconsistent quality.
Possible Causes:
- Ink nozzle is clogged or dry.
- Ink cartridge is low on ink.
- Ink cartridge protective cap was not replaced after use.
Solution:
- Wipe the ink nozzle multiple times with an alcohol wipe to clear any clogs.
- Check the ink level on the printer's display. Replace the cartridge if it's low.
- Always ensure the protective cap is placed back on the ink cartridge immediately after use to prevent drying.
5.2 Date and Time Not Saving
Symptom: The printer does not retain the set date and time after being turned off.
Possible Cause:
- Internal battery for timekeeping might be depleted or faulty.
Solution:
- Ensure the printer is fully charged.
- If the issue persists, contact v4ink customer support for further assistance, as this may indicate a hardware issue.
6. Specifications
Detailed technical specifications for the v4ink BENTSAI BT-HH6105B2 Handheld Inkjet Printer.
| Feature | Specification |
|---|---|
| Product Dimensions | 1.96"D x 5.31"W x 8.46"H |
| Item Weight | 15.9 ounces (450 Grams) |
| Printing Technology | Inkjet |
| Maximum Color Print Resolution | 600 dpi |
| Maximum Black and White Print Resolution | 600 dpi |
| Print Height | Up to 12.7 mm (0.5 inches) |
| Display Type | LED Touch Screen (4.3 inch) |
| Control Method | Touch |
| Ink Color Options | Black, White, Cyan, Green, Yellow, Magenta, Invisible (UV) |
| Printer Ink Type | Water-based, Solvent |
| Battery Type | 1 Lithium Ion battery (included) |
| Battery Endurance | Over 8 hours |
| Memory Storage Capacity | 64 GB |
| Hardware Interface | USB |
| Supported Image Formats | JPEG, PNG, BMP |
| Language Settings | 25 languages |
7. Warranty and Support
Your v4ink BENTSAI Handheld Inkjet Printer comes with a limited warranty.
For detailed warranty information, troubleshooting not covered in this manual, or technical support, please refer to the official user manual or contact v4ink customer service.
Official User Manual (PDF): Download Here





