1. Introduction
This manual provides instructions for the safe and effective use of your Bisofice L8 Mini Pocket Thermal Printer. Please read this manual thoroughly before operating the device and retain it for future reference.
The Bisofice L8 is a compact, wireless thermal printer designed for various printing needs, including photos, labels, notes, and study materials. It operates without ink, utilizing thermal paper for printing.
2. Product Overview
2.1 Key Features
- Inkless Thermal Printing: Utilizes thermal technology, eliminating the need for ink cartridges or toner.
- Compact and Portable: Lightweight (5.2 oz / 147g) with a built-in 1000mAh rechargeable battery, ideal for on-the-go use.
- Wireless Connectivity: Connects to smartphones via Bluetooth 4.0.
- High Resolution: 203 DPI print resolution for clear black-and-white output.
- Versatile Application: Supports printing of photos, labels, memos, notes, shopping lists, QR codes, and more through a dedicated mobile application.
- Wide Compatibility: Compatible with both Android and iOS operating systems.
2.2 Package Contents
Verify that all items are present in your package:
- 1 x Bisofice L8 Mini Thermal Printer
- 1 x Thermal Paper Roll (58mm width x 30mm diameter)
- 1 x USB Charging Cable
- 1 x Quick Start Guide

Image: Contents of the Bisofice L8 Mini Pocket Thermal Printer package, including the printer, a thermal paper roll, a USB cable, and a quick start guide.
3. Setup Guide
3.1 Charging the Printer
Before first use, fully charge the printer. Connect the provided USB cable to the printer's charging port and to a standard USB power adapter (not included) or a computer's USB port. The indicator light will show charging status (e.g., red for charging, green for fully charged).
3.2 Loading Thermal Paper
- Gently open the printer cover.
- Insert the thermal paper roll into the compartment, ensuring the printing side of the paper faces the print head. The paper should feed smoothly.
- Pull a small length of paper out beyond the print head.
- Close the printer cover firmly until it clicks into place.
Important: If prints are blank, the paper roll may be inserted upside down. Reverse the paper direction and try again.

Image: A hand demonstrating how to correctly load a roll of thermal paper into the Bisofice L8 Mini Pocket Thermal Printer.
3.3 App Installation and Bluetooth Connection
- Download the App: Search for "HerePrint" in your device's app store (Google Play for Android, App Store for iOS) or scan the QR code provided in the Quick Start Guide or on the product packaging.
- Enable Bluetooth: Ensure Bluetooth is enabled on your smartphone.
- Pair the Printer: Open the "HerePrint" app. The app will guide you through connecting to the printer via Bluetooth. Select "L8" or a similar device name from the list of available devices.
- Confirmation: Once connected, the app will indicate a successful connection, and the printer's indicator light may change.

Image: Instructions for downloading the "HerePrint" app from Google Play or Apple App Store, or by scanning a QR code, and connecting the printer via Bluetooth.
For app download, visit: http://hereprint.hprt.com/app/hereprint

Image: A visual representation of the Bisofice L8 printer connecting wirelessly to a smartphone via Bluetooth.
4. Operating Instructions
The Bisofice L8 printer is controlled entirely through the "HerePrint" mobile application. Ensure your printer is charged and connected via Bluetooth before proceeding.
4.1 Basic Printing Functions
- Text Printing: Within the app, select the "Notes" or "Text Printing" option. Type or paste your desired text. You can adjust fonts, sizes, and basic formatting before printing.
- Photo Printing: Select "Print Images" or "Photo Printing" in the app. Choose an image from your phone's gallery. The app allows for basic edits like filters and density adjustments for optimal thermal printing.
- One-Button Printing: After selecting content and making adjustments, tap the print icon in the app to initiate printing.

Image: A smartphone screen displaying the "HerePrint" app interface for photo printing, showing options for density and copies, with a printed photo emerging from the Bisofice L8 printer.
4.2 Advanced Printing Features (via HerePrint App)
The "HerePrint" app offers various templates and tools to enhance your printing experience:
- Label Workshop: Create custom labels for organization, storage, or personal items.
- Templates: Utilize pre-designed templates for to-do lists, study notes, journal entries, and more.
- QR Code/Barcode Printing: Generate and print QR codes or barcodes directly from the app.
- OCR (Optical Character Recognition): Scan text from images and print it.
- Web Print: Print content directly from web pages.
- Sketchbook/Hand Drawing: Draw or sketch within the app and print your creations.

Image: A graphic illustrating the diverse capabilities of the Bisofice L8 printer, including text printing, to-do list printing, photo printing, and pattern sticker printing, all managed through its powerful mobile application.

Image: Examples of how the L8 thermal printer can be used for journaling, study notes, to-do lists, photo printing, and creating labels for home organization.

Image: Various usage scenarios for the Bisofice L8 printer, including food classification, drug classification, file classification, network cable labeling, date stamping, and clothes classification, alongside a screenshot of the app interface.
5. Maintenance
5.1 Cleaning the Print Head
To ensure optimal print quality, periodically clean the print head. Turn off the printer and allow it to cool. Gently wipe the print head with a cotton swab lightly dampened with isopropyl alcohol. Allow it to dry completely before closing the cover and resuming use.
5.2 Paper Replacement
When the paper roll is depleted, replace it with a new 58mm (width) x 30mm (roll diameter) thermal paper roll, following the instructions in Section 3.2.
5.3 Battery Care
To prolong battery life, avoid fully discharging the printer frequently. Charge the printer regularly, even if not in constant use. Store the printer in a cool, dry place when not in use for extended periods.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Printer does not turn on. | Low battery or no charge. | Charge the printer using the provided USB cable. |
| Blank prints or faint output. | Thermal paper inserted incorrectly (upside down). | Re-insert the thermal paper roll with the printing side facing the print head. |
| Cannot connect via Bluetooth. | Bluetooth is off on the phone; printer is out of range; app issue. | Ensure phone Bluetooth is on. Move phone closer to printer. Restart the app and printer. Check app permissions. |
| Poor print quality (streaks, unclear). | Dirty print head; low battery; old/damaged thermal paper. | Clean the print head (Section 5.1). Charge the printer. Replace the thermal paper roll. |
| Printer not responding. | Temporary software glitch. | Turn off the printer, wait a few seconds, then turn it back on. |
7. Specifications
| Feature | Detail |
|---|---|
| Model | L8 |
| Brand | Bisofice |
| Printing Technology | Thermal |
| Connectivity | Bluetooth 4.0 |
| Print Resolution | 203 DPI (Maximum Black and White Print Resolution) |
| Print Media | Thermal Paper |
| Maximum Media Size | 58mm (width) |
| Battery | 1000mAh Rechargeable |
| Product Dimensions | 1.57"D x 3.43"W x 1.57"H (40mm D x 87mm W x 40mm H) |
| Item Weight | 5.2 ounces (147 Grams) |
| Compatible Devices | Smartphones (Android, iOS) |
| Control Method | App (HerePrint) |
| Ink Color | Black (Monochrome output) |
8. Warranty and Support
The Bisofice L8 Mini Pocket Thermal Printer comes with a limited warranty. Please refer to the warranty information provided with your purchase or contact Bisofice customer support for details.
For technical assistance or further inquiries, please visit the official Bisofice website or contact their customer service department.