Sunlux RP5850 Direct Thermal Receipt Printer
The Sunlux RP5850 is a compact and dependable 58mm direct thermal receipt printer designed for busy point-of-sale environments. No ink, no ribbons — just fast, clean receipts every time. Whether you're running a retail shop, a café, or a delivery counter, the RP5850 keeps your checkout line moving.
Key Features
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Direct Thermal Printing — No ink or ribbon required, reducing running costs and maintenance downtime.
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90mm/s Print Speed — Fast receipt output to keep queues short and customers happy.
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58mm Paper Width — Standard receipt paper size compatible with most POS paper rolls.
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384 Dots/Line Resolution — Sharp, readable text and graphics on every receipt.
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USB Interface — Simple plug-and-play connectivity with any POS system or computer.
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50km Printhead Life — Built for high-volume use with a long-lasting thermal printhead.
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64K NV Flash + 32K Input Buffer — Stores logos and handles print jobs smoothly without lag.
Who Is This For?
| Use Case |
Why It Works |
| Retail & Supermarkets |
Fast receipt printing at checkout counters |
| Restaurants & Cafes |
Kitchen and customer receipt output |
| Delivery & Courier |
Compact size fits any dispatch desk |
| Pharmacies & Clinics |
Clean prescription and payment receipts |
Frequently Asked Questions
Q: Does the RP5850 need ink or a ribbon?
No. It uses direct thermal technology — just load the paper roll and print.
Q: What paper size does it use?
58mm wide paper rolls with a thickness of 0.06–0.08mm.
Q: How fast does it print?
Up to 90mm per second — fast enough for high-traffic POS environments.
Q: What interface does it use?
USB only. Plug it into any POS terminal or computer and start printing.
Q: How long does the printhead last?
The printhead is rated for 50km of printing — ideal for long-term, high-volume use.
Technical Specifications
| Spec |
Detail |
| Model |
RP5850 |
| Brand |
SUNLUX |
| Print Method |
Direct Thermal |
| Print Speed |
90mm/s |
| Print Width |
48mm |
| Paper Width |
58mm |
| Paper Thickness |
0.06 – 0.08mm |
| Resolution |
384 dots/line |
| Line Space |
3.75mm (adjustable via commands) |
| NV Flash |
64K Bytes |
| Input Buffer |
32K Bytes |
| Power Supply |
DC 9V/2A or DC 12V/1A |
| Interface |
USB |
| Printhead Life |
50km |