1. Introduction
This manual provides detailed instructions for the setup, operation, and maintenance of your Generic Electronic Cash Register, Model CQDGUCBLU. Please read this manual thoroughly before using the device to ensure proper functionality and to maximize its lifespan. Keep this manual for future reference.
2. Product Overview
The Generic Electronic Cash Register is a comprehensive point-of-sale (POS) system designed for small businesses. It features an integrated thermal printer, a secure cash drawer, and a user-friendly 48-key keyboard.
2.1 Key Features
- Integrated Thermal Printer: Fast printing speed of up to 60mm/s, using 58mm wide paper.
- Secure Cash Drawer: Features 4 banknote trays and 5 coin trays, with a key lock.
- Dual Display: Operator display (128x64) and customer display (8 digital tubes).
- 48-Key Keyboard: Designed for efficient data entry and operation.
- Extensive PLU Capacity: Supports up to 10,000 Price Look-Up (PLU) items.
- Reporting Functions: Generate inventory, out-of-stock, and configuration reports.
- Connectivity: Multiple interfaces for peripherals like barcode scanners and external printers.
2.2 Components and Dimensions
The cash register is designed for compact and efficient use. Below are the main components and overall dimensions.

Figure 1: Front view of the cash register with key dimensions (335mm/13.18in depth, 388mm/15.27in width, 210mm/8.26in height) and a table of technical specifications including CPU, printer head, printing speed, paper width, display types, keyboard, and PLU capacity.

Figure 2: The cash register with its cash drawer open, illustrating the four banknote trays and five coin trays, along with the keyhole for securing the drawer.

Figure 3: Detailed views of the cash register, showing the operator display, the cash drawer keyhole, and the various interface ports located at the rear of the unit.
3. Setup
Follow these steps to set up your cash register for initial use.
3.1 Unpacking and Placement
- Carefully remove the cash register from its packaging.
- Place the unit on a stable, flat surface. Ensure adequate ventilation around the device.
- Keep the packaging materials for future transport or storage.
3.2 Power Connection
Connect the power cord to the cash register and then to a suitable power outlet. The system is designed for simple plug-and-play operation.

Figure 4: Rear view of the cash register demonstrating the simple power cord connection. No complex wiring is required for basic operation.
3.3 Loading Thermal Paper
The cash register uses 58mm wide thermal paper. Open the printer cover, insert the paper roll with the thermal side facing the print head, and close the cover. Ensure the paper feeds smoothly.
3.4 Connecting Peripherals
The cash register supports various auxiliary equipment. Use the appropriate ports on the rear of the unit to connect devices such as barcode scanners or external printers.

Figure 5: Rear view of the cash register highlighting the USB data cable interface and PS2 keyboard interface for connecting peripherals.

Figure 6: A diagram illustrating the various peripheral interfaces on the cash register, including power supply, communication interfaces, and connections for a barcode scanner, external printer, and price scale.
4. Operating Instructions
This section covers the basic operation of your electronic cash register.
4.1 Basic Sales Functions
- Item Entry: Use the 48-key keyboard to enter product codes or PLU numbers.
- Price Changes: The system supports on-the-fly price adjustments. Refer to the on-screen menu for specific steps.
- Ticket Holding: Temporarily hold a transaction to process another, then recall the held ticket.
- Refunds: Process returns and issue refunds according to your store policy.
- Payment Processing: Finalize transactions using various payment methods.
4.2 Data Management
Product data and system configurations can be managed in two ways:
- Via PC Software: Connect the cash register to a computer and use the provided PC software to create or edit product data and modify system settings.
- Via ECR Keyboard: Directly input and edit data using the cash register's keyboard and operator display.
4.3 Report Generation
The cash register offers powerful reporting capabilities to monitor your business operations.
- Inventory Reports: Track current stock levels.
- Out-of-Stock Reports: Identify items that need reordering.
- Configuration Reports: View current system settings.
- Reports can be generated for any specified time period.
5. Maintenance
Regular maintenance ensures the longevity and optimal performance of your cash register.
- Cleaning: Use a soft, dry cloth to clean the exterior of the unit. For stubborn dirt, a slightly damp cloth with mild detergent can be used, ensuring no liquid enters the device.
- Printer Head: Periodically clean the thermal printer head with a specialized cleaning pen or isopropyl alcohol to ensure clear print quality.
- Cash Drawer: Keep the cash drawer free of debris. Ensure the rails are clean for smooth operation.
- Software Updates: Check for any available software updates to ensure your system has the latest features and security patches.
6. Troubleshooting
If you encounter issues with your cash register, refer to the following common problems and solutions. If the problem persists, please contact customer support.
- No Power: Ensure the power cord is securely connected to both the unit and the power outlet. Check the power switch.
- Printer Not Printing: Verify that thermal paper is loaded correctly and that the printer cover is closed. Check for any paper jams.
- Display Issues: If the display is blank or unreadable, check power connections and ensure the unit is turned on.
- Keyboard Unresponsive: Ensure the keyboard cable (if external) is properly connected. Restart the unit.
- Cash Drawer Not Opening: Check if the drawer is locked. Ensure the transaction is finalized or use the emergency switch if available.
7. Specifications
| Parameter | Detail |
|---|---|
| Model Number | CQDGUCBLU |
| CPU | GD32F103VCT6 |
| Print Head | 1-station thermal, 57*50 |
| Printing Speed | Max. 60mm/s |
| Paper Width | 58 mm / 2.28 inches |
| Operator Display | 128x64 |
| Customer Display | 8 digital tubes |
| Keyboard | 48 keys |
| PLU Capacity | 10,000 |
| Dimensions (L x W x H) | 13.18 x 15.27 x 8.26 inches (335 x 388 x 210 mm) |
| Cash Drawer Trays | 4 banknote trays, 5 coin trays |
| Currency Support | US dollars |
| Item Weight | 6.61 pounds |
8. Warranty and Support
This electronic cash register comes with an operation manual. For any problems encountered during the use process, please contact our customer support staff. They will assist you with troubleshooting and provide guidance.
Please refer to your purchase documentation for specific warranty terms and contact information.