1. Product Overview
The SINMARK SK58 Mini Thermal Printer is a compact and portable label maker designed for efficient and clear printing. It supports wireless connectivity via Bluetooth to Android and iOS smartphones, making it convenient for various labeling needs in home, office, retail, and more. This printer utilizes direct thermal printing technology, eliminating the need for ink cartridges.
Key Features:
- Wireless connectivity via Bluetooth (BT Version 4.2) for Android and iOS devices.
- Supports 16 application languages.
- Direct thermal printing for quiet, fast, and inkless operation.
- High-definition printing with 203dpi resolution.
- Built-in 1800mAh rechargeable lithium battery.
- Compact and lightweight design for portability.
- Compatible with 30-50mm thermal label paper.
2. Package Contents
Please check the box for the following items:
- 1 x SINMARK SK58 Thermal Printer
- 1 x USB Cable (Type-C)
- 3 x Thermal Roll Paper (circular labels)
- 1 x User Manual
- 1 x Cloth Dust Bag
3. Setup Guide
3.1 Initial Charging
- Connect the provided USB Type-C cable to the printer's charging port.
- Connect the other end of the USB cable to a standard USB power adapter (not included) or a computer's USB port.
- The battery indicator on the printer will show charging status. A full charge typically takes approximately 4 hours.
3.2 Loading Thermal Paper
- Open the printer's paper compartment cover.
- Insert a roll of thermal paper, ensuring the printing side is facing the print head. The printer supports thermal receipt roll paper and thermal sticker paper with widths of 30mm, 40mm, or 50mm, and a rolling paper diameter of ≤40mm.
- Close the paper compartment cover, leaving a small portion of paper extending from the output slot.
3.3 App Installation and Bluetooth Connection
- Power on the printer by pressing the power button.
- Download the dedicated printing application from your smartphone's app store (e.g., Google Play Store for Android, Apple App Store for iOS). Refer to the included user manual for the exact app name.
- Enable Bluetooth on your smartphone.
- Open the printing application and follow the on-screen instructions to connect to the SINMARK SK58 printer via Bluetooth. The printer should appear in the list of available devices.
4. Operating Instructions
4.1 Basic Printing
- Ensure the printer is powered on and connected to your smartphone via Bluetooth.
- Open the printing application on your smartphone.
- Select or design the label you wish to print within the app.
- Confirm print settings (e.g., number of copies, label size if applicable).
- Tap the 'Print' button in the application. The printer will automatically feed and print the label.
4.2 Creating Custom Labels
The application allows for extensive customization:
- Text: Add custom text, adjust font, size, and alignment.
- Images/Icons: Insert images or choose from a library of icons.
- Barcodes/QR Codes: Generate and print various barcode types (UPC-A, EAN-13, CODE39, QR code, etc.).
- Templates: Utilize pre-designed templates for common uses like price tags, address labels, or organizational labels.
5. Maintenance
5.1 Cleaning the Print Head
To ensure optimal print quality, clean the print head regularly:
- Turn off the printer and disconnect the USB cable.
- Open the paper compartment cover.
- Gently wipe the print head with a cotton swab lightly dampened with isopropyl alcohol.
- Allow the print head to dry completely before closing the cover and using the printer.
5.2 Battery Care
- Avoid fully discharging the battery frequently to prolong its lifespan.
- If the printer will not be used for an extended period, charge it to about 50% and store it in a cool, dry place.
- Recharge the battery every few months to prevent deep discharge.
5.3 Storage
Store the printer in an environment with a temperature range of -20°C to 60°C (-4°F to 140°F) and away from direct sunlight or excessive humidity.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Printer not turning on | Low battery; Power button not pressed correctly | Charge the printer; Press and hold the power button for a few seconds. |
| Cannot connect via Bluetooth | Bluetooth off on phone/printer; Printer not discoverable; App issue | Ensure Bluetooth is enabled on both devices; Restart printer and phone; Reinstall the app. |
| Poor print quality (faint, lines) | Dirty print head; Incorrect paper type; Low battery | Clean the print head (see Section 5.1); Ensure you are using thermal paper; Charge the printer. |
| Paper jam | Improper paper loading; Foreign object | Open cover, remove jammed paper carefully, reload correctly; Check for obstructions. |
| Printer not responding | System error; Firmware issue | Restart the printer; If issue persists, contact support. |
7. Specifications
| Feature | Specification |
|---|---|
| Print Method | Thermal line printing |
| Resolution | 203dpi (8 dots/mm) |
| Print Speed | 50 mm/s |
| Connectivity | Bluetooth (BT Version 4.2), TYPE-C Interface |
| Battery | 3.7V, 1800mAh rechargeable lithium battery |
| Charging Time | Approx. 4 hours |
| Standby Time | 60 hours |
| Compatible Paper Type | Thermal receipt roll paper, Thermal sticker paper |
| Paper Thickness | 0.05 - 0.18mm |
| Paper Width | 30mm, 40mm, 50mm (optional) |
| Effective Print Width | 48mm +/- 0.5mm |
| Rolling Paper Diameter | ≤40mm |
| Barcode Types Supported | UPC-A, UPC-E, EAN-13, EAN-8, CODE39, ITF25, CODEBAR, CODE93, CODE128, QR code, PDF417 |
| Operating Temperature | 0°C to 50°C (32°F to 122°F) |
| Storage Temperature | -20°C to 60°C (-4°F to 140°F) |
| Supported Systems | Android, iOS |
| Application Languages | English, Korean, Japanese, Russian, Spanish, French, Italian, German, Thai, Malay, Indonesian, Vietnamese, Hebrew, Arabic, Simplified Chinese, Traditional Chinese |
| Machine Size | 101mm x 86mm x 48mm |
| Machine Weight | 190g (without paper) |
8. User Tips
- App Name: The specific name of the companion app for the SINMARK SK58 printer can usually be found in the included quick start guide or by scanning a QR code on the product packaging. Search for 'SINMARK' or 'Label Printer' in your app store if unsure.
- Included Labels: The printer typically comes with three rolls of thermal paper, which are often circular self-adhesive labels, allowing you to start printing immediately.
- Label Customization: Experiment with the various fonts, icons, and templates available in the app to create unique and functional labels for different purposes.
- Battery Life: For optimal portability, ensure the printer is fully charged before extended use. The 60-hour standby time is useful, but active printing will consume battery faster.
9. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the contact details provided by your retailer or the manufacturer's official website. Keep your purchase receipt as proof of purchase.