HS-QR21 Thermal Receipt Printer | Compact Embedded | Low Noise Easy Paper Loading | Multi-Interface Wide Voltage

The HS-QR21 thermal receipt printer has a compact body design, matched with a convenient paper loading structure and front panel design. Paper replacement is simple and efficient without tedious steps, greatly improving the convenience of daily use. It adopts a thermal dot line printing method with low working noise, suitable for quiet use environments. At the same time, it has a printing speed of 50-80mm/s, a resolution of 8dots/mm and 384dots/line, and an effective printing width of 48mm, ensuring clear and smooth printing and meeting the needs of high-frequency document printing. The control panel has a built-in GB18030 Chinese character library, which can completely solve the problem of uncommon character printing. It also supports updating different language fonts, with a character set compatible with ASCII and GB2312-80 Chinese, and fonts including ANK:9X17/12X24 and GBK:24×24, adapting to text printing needs in multiple regions and scenarios. It fully supports full-format printing of graphics, curves and characters, meeting the printing needs of text and patterns for various documents, and is suitable for diverse printing scenarios such as catering receipts, bank receipts and medical documents. The interface can be optional RS232/TTL/USB, and the power supply supports DC5V-9V wide voltage or 12VDC, which can flexibly match the connection and power supply needs of different devices, with extremely strong adaptability for embedded installation. It has an insertion depth of 40mm, an installation port size of 71x43mm, and an outline dimension of only 79x44x47mm with a controller board. Its compact size allows it to be easily embedded into various instruments and meters, intelligent terminals and self-service equipment, effectively saving installation space. The device has outstanding reliability with an MCBF of 5 million lines, stable operation and low failure rate. It can operate normally at a working temperature of 5℃~50℃ and a working humidity of 10%~80%, with wider adaptability to storage environments, meeting the long-term use needs of commercial scenarios. In terms of consumable adaptation, it supports 57.5±0.5mm standard thermal paper with a thickness of 0.06-0.07mm, a minimum inner diameter of 13mm and a maximum diameter of 22mm (about 16-20 meters) for the paper roll. Consumables are easy to purchase and compatible with conventional thermal paper roll specifications. The standard accessories of the printer include the printer host, product user manual, embedded installation accessory kit, optional interface data cable (RS232/TTL/USB), power adapter cable and warranty card. It is widely used in printing order forms, settlement bills and consumer receipts in the catering industry, shopping documents and charge receipts in retail stores/supermarkets, tax vouchers and tax payment documents in the tax system, business receipts and payment documents in banking and finance, diagnosis and treatment forms, charging vouchers and inspection documents in medical care, inbound and outbound orders and transfer orders in warehousing and logistics, courier waybills and receipts in postal express, etc. It can also be embedded into various industrial instruments and meters, intelligent self-service terminals and small commercial equipment for use.