1. Уводзіны
The Symcode Mj-2877L is a versatile 1D mini wireless handheld laser barcode scanner designed for efficient data collection across various platforms. It supports both Bluetooth 4.0 and 2.4G wireless connectivity, making it compatible with POS systems, Android, iOS, iMac, and iPad devices. This manual provides comprehensive instructions to help you set up, operate, and maintain your scanner.
2. Прадукт скончыўсяview і кампаненты
Familiarize yourself with the key parts of your Symcode Mj-2877L barcode scanner:

Figure 1: Product Components. Выбухнуў view diagram highlighting key components of the scanner: indicator lights, scan window, ON/OFF button, scanning switch, battery compartment, and hand strap attachment point.
- Акно сканавання: Emits the laser beam for scanning barcodes.
- Светавыя індыкатары: Provide status feedback (e.g., power, connection, scan success).
- Кнопка ON/OFF: Уключае або выключае прыладу.
- Scanning Switch: Activates the laser for scanning.
- Батарэйны адсек: Houses the rechargeable lithium-ion battery.
- Мацаванне для рамяня на руку: For securing a hand strap (included).
3. Настройка
3.1 Усталёўка і зарадка акумулятара

Малюнак 2: Усталёўка і зарадка акумулятара. A visual guide demonstrating how to open the battery compartment, insert the lithium-ion battery, close the compartment, and connect the scanner to a USB charging cable.
- Адкрыйце крышку батарэйнага адсека.
- Insert the provided DC 3.7V, 1000mA Li-ion battery, ensuring correct polarity.
- Надзейна зачыніце крышку батарэйнага адсека.
- Connect the scanner to a USB power source using the included charging cable. The charging time is approximately 3 hours.
3.2 Прымацаванне заціску для рамяня
Video 1: Installation and Removal of Belt Clip. This video provides a visual guide on how to attach and detach the belt clip from the barcode scanner, ensuring secure and convenient portability.
To attach the belt clip, align it with the screw holes on the back of the scanner and secure it using the provided screws. To remove, simply unscrew.
4. Сувязь
The Symcode Mj-2877L supports two primary wireless connection methods:

Figure 3: Wired and Wireless Modes. This diagram shows two main modes: wired connection via USB cable for charging and data transmission, and wireless modes (2.4G for computers, Bluetooth for mobile devices) without needing driver installation for mobile.
4.1 2.4G Wireless Mode (for PC/POS Machine)

Figure 4: 2.4G Wireless Connection. The scanner is shown in use, with its laser active, and a separate image illustrates the 2.4G wireless USB receiver plugged into a laptop.
- Insert the provided USB wireless receiver into an available USB port on your PC or POS machine.
- Turn on the barcode scanner. It should automatically connect to the receiver.
- Цяпер сканер гатовы да выкарыстання.
4.2 Bluetooth Mode (for Smartphones, Tablets, Laptops)

Figure 5: Bluetooth Compatibility. The scanner is depicted with wireless signals connecting to a laptop, smartphone, and tablet, indicating its Bluetooth compatibility across Windows, Apple, and Android operating systems.
- Уключыце сканер штрых-кодаў.
- Long press the scan button for 8 seconds to activate Bluetooth pairing mode. The indicator light will flash.
- On your smartphone, tablet, or laptop, go to Bluetooth settings and search for available devices.
- Select the scanner (e.g., "Symcode Scanner") from the list to pair.
- Once paired, the indicator light will turn solid, and the scanner is ready for use. No USB wireless receiver is needed for Bluetooth connections.
4.3 Далёкасць бесправадной сувязі

Малюнак 6: Далёкасць бесправадной сувязі. A diagram illustrating the scanner's wireless range: up to 100 feet (30m) indoors for 2.4G wireless and up to 330 feet (100m) outdoors, and up to 33 feet (10m) for Bluetooth connections with mobile devices.
- Бесправадная сувязь 2.4G: Up to 100 feet (30m) indoors, up to 330 feet (100m) outdoors.
- Bluetooth: Up to 33 feet (10m) with mobile devices.
5. Рэжымы працы
The scanner supports various operating modes to suit different needs:
5.1 Рэжым імгненнай загрузкі
Video 2: 2 Types Upload Ways. This video demonstrates two methods of uploading scanned data: instant upload directly to a connected computer or mobile device, and storage mode where data is saved internally before being uploaded later.
In this mode, scanned barcode data is immediately transmitted to the connected device (PC, smartphone, tablet). This is ideal for real-time inventory management or POS transactions.
5.2 Рэжым захоўвання

Figure 7: Large Storage Capacity. The scanner is shown with an icon representing a floppy disk and "16M" text, indicating its 16MB storage capacity, capable of storing over 50,000 codes in storage working mode.
The scanner features 16MB of internal storage, capable of holding over 50,000 barcode entries. In storage mode, scanned data is saved internally and can be uploaded to your device later. This is useful when working out of range or when real-time transmission is not required.
5.3 Рэжым бесперапыннага сканавання
Video 3: Continuous Scanning Mode. This video demonstrates the continuous scanning mode of the barcode scanner, showing how it can rapidly scan multiple barcodes without requiring repeated button presses, ideal for high-volume tasks.
To activate continuous scan mode, scan the corresponding barcode from the 'Solutions to Common Problems' section (see Section 7.1). In this mode, the scanner will continuously emit its laser, allowing for rapid scanning of multiple items without pressing the trigger for each scan.
5.4 Handheld and Static Modes
Video 4: Handheld and Static Scanning. This video illustrates the flexibility of the barcode scanner, demonstrating both handheld operation for individual scans and static mode when placed on its stand for hands-free scanning.
The scanner can be used in handheld mode for mobile scanning or placed on a compatible stand (if available) for static, hands-free operation, automatically scanning barcodes presented to it.
6. Асноўная аперацыя

Figure 8: Scanning a Barcode. A hand holds the scanner, aiming its red laser at a barcode, demonstrating the scanning action.
- Ensure the scanner is powered on and connected to your device via 2.4G wireless or Bluetooth.
- Накіруйце акно сканавання на штрых-код, які вы хочаце адсканіраваць.
- Press the scanning switch. A red laser line will appear.
- Align the red laser line across the entire barcode.
- Upon successful scan, the scanner will emit a beep (if not muted) and the indicator light will flash. The barcode data will appear on your connected device.
Video 5: Scanning Various Barcodes. This video showcases the Symcode barcode scanner's ability to scan various 1D and 2D barcodes, including QR codes, and its seamless integration with different devices for data input.
7. Advanced Settings and Troubleshooting
The Symcode Mj-2877L can be configured using special barcodes found in the 'Solutions to Common Problems' section of the manual or via menu options on models with screens.

Figure 9: Configuration Barcodes. A series of barcodes labeled for specific functions: Factory Restore (0B Initialization), Serial Mode (000601), Auto Continuous Scan Mode (013304), iOS keyboard double click show or hide (%%BT_Pads_En), Shut Sound (014200), and Bluetooth initialization. Users scan these barcodes to apply the settings.
7.1 Common Configuration Barcodes
Scan the following barcodes to apply specific settings:
- Завадское аднаўленне: сканаваць 0B Initialization to reset the scanner to its default factory settings.
- Паслядоўны рэжым: сканаваць 000601 Serial Mode for serial data transmission.
- Рэжым бесперапыннага сканавання: сканаваць 013304 Auto Continuous Scan Mode to enable continuous scanning.
- Пераключэнне клавіятуры iOS: сканаваць %%BT_Pads_En iOS keyboard double click show or hide to toggle the iOS virtual keyboard.
- Turn Beep Off: сканаваць 014200 Shut Sound to mute the scanner's beep sound.
- Bluetooth Initialization: сканаваць Ініцыялізацыя Bluetooth to re-initialize Bluetooth settings.
7.2 Advanced Menu Settings (if applicable)
Video 6: Advanced Screen Features. This video highlights the advanced configuration options available through the scanner's menu, including settings for keyboard layout, encoding, sound, vibration, transport mode, and sleep time.
For models with an LCD screen, additional settings can be accessed directly through the menu. These may include:
- Раскладка клавіятуры: Adjust for different regional keyboard layouts.
- Кадаванне: Select appropriate encoding (e.g., GBK, UTF) for data output.
- Гукі: Adjust volume and frequency of beeps.
- Вібрацыя: Уключыць або адключыць вібрацыйную зваротную сувязь.
- Рэжым транспарту: Configure inventory and data upload settings.
- Час сну: Set the duration before the scanner enters sleep mode to conserve battery.
8. Тэхнічныя характарыстыкі
| Асаблівасць | Спецыфікацыя |
|---|---|
| Крыніца святла | 650nm~670nm visible laser |
| Хуткасць сканавання | 200 сканаванняў/сек |
| Read Preciseness | 0.1 мм (4 мілы) |
| Кантраст друку | 30% мін |
| Глыбіня рэзкасці | 0~600mm (0.33mm, PCS 90%) |
| Scan Scope | 10 мм ~ 250 мм |
| Дыстанцыя чытання | 2.5~600mm (100% UPC/EAN) |
| Магчымасці дэкадавання | EAN-8/13, UPC-A/E, Code 39/93/128, EAN-128, Codabar, Industrial 2 of 5, Interleave 2 of 5, Matrix 2 of 5, MSI etc. |
| Частата бітавых памылак | 1/5 мільёна |
| Інтэрфейс | Bluetooth 4.0, бесправадная сувязь 2.4G |
| акумулятар | DC 3.7V, 1000mA Li-ion battery |
| Ток | 100 мА (праца), 30 мА (захоўванне) |
| Працоўная тэмпература | 0°C~45°C |
| Тэмпература захоўвання | -20°C~60°C |
| Вільготнасць | 5%~95% без кандэнсацыі |
| Памеры прадукту | 13.5 х 5.5 х 10.7 см |
| Вага | 149 г |
9. Тэхнічнае абслугоўванне
To ensure the longevity and optimal performance of your Symcode Mj-2877L barcode scanner, follow these maintenance guidelines:
- Уборка: Use a soft, dry cloth to clean the scanner's exterior. For the scan window, use a lint-free cloth and a mild glass cleaner. Avoid abrasive materials or harsh chemicals.
- захоўванне: Захоўвайце сканер у прахалодным, сухім месцы, удалечыні ад прамых сонечных прамянёў і экстрэмальных тэмператур.
- Сыход за батарэяй: Fully charge the battery before first use. If storing for extended periods, charge the battery every 3 months to prevent deep discharge.
- Пазбягайце кропель: While durable, avoid dropping the scanner to prevent damage to internal components or the scan window.
10. Гарантыя і падтрымка
Your Symcode Mj-2877L barcode scanner comes with a manufacturer's warranty. Please refer to the warranty card included in your package for specific terms and conditions. For technical support, troubleshooting assistance, or warranty claims, please contact Symcode customer service through their official webсайт або кантактную інфармацыю, указаную на ўпакоўцы прадукту.