QLC21701 - Barcode Reader Qian - Free user manual and instructions
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| Product Type | Barcode Reader |
| Model | QLC21701 |
| Brand | Qian |
| Scanning Technology | Advanced CCD optical sensor |
| Reading Capability | 1D / Linear barcodes (Code 39, Code 128, EAN, UPC, ISBN, etc.) |
| Interface | USB wired connection |
| Cable Length | 1.5 m (approximately) |
| Power Supply | USB 5V DC, no external adapter required |
| Weight | 160 g (including cable) |
| Dimensions (L x W x H) | 170 x 70 x 85 mm |
| Operating Systems | Windows, macOS, Linux |
| Scan Speed | 200 scans per second (typical) |
| Resolution | 4 mil (0.1 mm) high-precision reading |
| Depth of Field | 0 - 300 mm (varies with barcode density) |
| Plug and Play | Yes, no additional software installation needed |
| Indicators | Beeper and LED visible feedback |
| Durability | Drop resistant up to 1.5 m |
| Cleaning | Wipe with a soft, dry cloth. Do not use harsh chemicals. |
| Reparability | Replaceable cable, scanner housing and internal parts |
| Package Includes | Barcode scanner, USB cable, user manual |
Frequently Asked Questions - QLC21701 Qian
How do I connect the QLC21701 barcode scanner to my computer?
Simply plug the USB cable into an available USB port on your computer. The scanner is plug and play, so no additional drivers are needed on most systems. Wait a few seconds for the device to be recognized, then start scanning.
Does the scanner work with macOS?
Yes, the QLC21701 is compatible with macOS. It appears as a HID keyboard device, meaning it sends scanned data as keystrokes without requiring special software. Just plug it in and it works.
Which barcode types can this reader scan?
The scanner supports all standard 1D linear barcodes, including Code 39, Code 128, EAN-13, EAN-8, UPC-A, UPC-E, ISBN, and many others. It reads both retail and industrial codes with high accuracy.
How can I test if the scanner is working properly?
Open any text editor (like Notepad or TextEdit). Press the trigger or place the scanner over a barcode. The decoded data should appear as keyboard input in the text editor. You can also check if the LED lights up and the beeper sounds during scanning.
Can I use the scanner immediately without installing drivers?
Yes, for Windows, macOS and Linux, the scanner works as a standard USB HID keyboard. No specific driver installation is required. Simply connect it and it is ready to use.
How should I clean the scanner?
Disconnect the scanner from power. Use a soft, dry, lint-free cloth to wipe the exterior and the reading window. Do not use water, solvents or abrasive cleaners, as they may damage the lens and housing.
What should I do if the scanner reads barcodes incorrectly or fails to read?
Check that the barcode is not damaged or smudged, and that you are holding the scanner within its depth of field. Clean the scanning window. If the issue persists, perform a factory reset by scanning the reset barcode in the manual. If it still fails, verify the USB connection.
Is the QLC21701 a wireless scanner?
No, this model is wired only and connects via USB. The cable provides both power and data transfer. If you need wireless functionality, look for a model that specifically states Bluetooth or 2.4G wireless support.
What is the warranty coverage for the Qian QLC21701?
The scanner typically comes with a 1-year limited warranty against defects in materials and workmanship. This covers repair or replacement under normal usage conditions. Retain your purchase receipt as proof of warranty.
Can I customize the scanner settings, such as adding a suffix or changing the language?
Yes, the scanner can be configured via configuration barcodes provided in the user manual. You can adjust parameters like the terminator character, inter-character delay, and keyboard layout. Scan the appropriate barcode to enable or disable each setting.
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USER MANUAL QLC21701 Qian
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Product information
Brand : Qian
Model : QLC21701
Category : Barcode Reader