1. Uvod
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. Proizvod je gotovview i komponente
Familiarize yourself with the key parts of your Symcode Mj-2877L barcode scanner:

Slika 1: Komponente proizvoda. Eksplodirao je view diagram highlighting key components of the scanner: indicator lights, scan window, ON/OFF button, scanning switch, battery compartment, and hand strap attachment point.
- Prozor za skeniranje: Emits the laser beam for scanning barcodes.
- Indikatorska svjetla: Pružite povratne informacije o statusu (npr. napajanje, veza, uspješno skeniranje).
- Dugme za uključivanje/isključivanje: Uključuje ili isključuje uređaj.
- Scanning Switch: Activates the laser for scanning.
- Pretinac za baterije: Houses the rechargeable lithium-ion battery.
- Pričvršćivanje za remen za ruku: For securing a hand strap (included).
3. Podešavanje
3.1 Ugradnja i punjenje baterije

Figure 2: Battery Installation and Charging. 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.
- Otvorite poklopac odeljka za baterije.
- Insert the provided DC 3.7V, 1000mA Li-ion battery, ensuring correct polarity.
- Čvrsto zatvorite poklopac odeljka za baterije.
- Connect the scanner to a USB power source using the included charging cable. The charging time is approximately 3 hours.
3.2 Pričvršćivanje kopče za pojas
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. Povezivanje
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.
- Uključite skener barkodova. Trebao bi se automatski povezati s prijemnikom.
- Skener je sada spreman za upotrebu.
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.
- Uključite skener barkodova.
- 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 Bežični domet

Figure 6: Wireless Range. 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.
- 2.4G bežična mreža: Up to 100 feet (30m) indoors, up to 330 feet (100m) outdoors.
- Bluetooth: Up to 33 feet (10m) with mobile devices.
5. Načini rada
The scanner supports various operating modes to suit different needs:
5.1 Režim trenutnog otpremanja
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 Režim skladištenja

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 Režim kontinuiranog skeniranja
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. Osnovni rad

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.
- Usmjerite prozor za skeniranje na bar kod koji želite skenirati.
- 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:
- Fabričko vraćanje: Skeniraj 0B Initialization to reset the scanner to its default factory settings.
- Serijski način rada: Skeniraj 000601 Serial Mode for serial data transmission.
- Kontinuirani način skeniranja: Skeniraj 013304 Auto Continuous Scan Mode to enable continuous scanning.
- Prebacivanje/isključivanje iOS tastature: Skeniraj %%BT_Pads_En iOS keyboard double click show or hide to toggle the iOS virtual keyboard.
- Turn Beep Off: Skeniraj 014200 Shut Sound to mute the scanner's beep sound.
- Bluetooth Initialization: Skeniraj Bluetooth inicijalizacija 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:
- Raspored tipkovnice: Adjust for different regional keyboard layouts.
- Kodiranje: Select appropriate encoding (e.g., GBK, UTF) for data output.
- zvuci: Adjust volume and frequency of beeps.
- Vibracija: Enable or disable vibration feedback.
- Način transporta: Configure inventory and data upload settings.
- Vrijeme spavanja: Set the duration before the scanner enters sleep mode to conserve battery.
8. Specifikacije
| Feature | Specifikacija |
|---|---|
| Izvor svjetlosti | 650nm~670nm visible laser |
| Brzina skeniranja | 200 skeniranja/sek |
| Read Preciseness | 0.1 mm (4 mil) |
| Print Contrast | 30% min |
| Dubina polja | 0~600mm (0.33mm, PCS 90%) |
| Scan Scope | 10mm~250mm |
| Udaljenost čitanja | 2.5~600mm (100% UPC/EAN) |
| Mogućnosti dekodiranja | 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. |
| Bit Error Rate | 1/5 miliona |
| Interface | Bluetooth 4.0, 2.4G bežična veza |
| Baterija | DC 3.7V, 1000mA Li-ion battery |
| Current | 100mA (working), 30mA (storage) |
| Radna temperatura | 0°C~45°C |
| Temperatura skladištenja | -20°C~60°C |
| Vlažnost | 5%~95% bez kondenzacije |
| Dimenzije proizvoda | 13.5 x 5.5 x 10.7 cm |
| Težina | 149 g |
9. Održavanje
To ensure the longevity and optimal performance of your Symcode Mj-2877L barcode scanner, follow these maintenance guidelines:
- čišćenje: 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.
- Skladištenje: Čuvajte skener na hladnom i suhom mjestu, dalje od direktne sunčeve svjetlosti i ekstremnih temperatura.
- Održavanje baterije: Fully charge the battery before first use. If storing for extended periods, charge the battery every 3 months to prevent deep discharge.
- Izbjegavajte kapi: While durable, avoid dropping the scanner to prevent damage to internal components or the scan window.
10. Garancija i podrška
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 webweb-mjesto ili kontakt informacije navedene u pakovanju vašeg proizvoda.





