A printer that prints quickly and effectively without ink may sound like a myth, but the technology behind thermal printers gives businesses the ability to print receipts, labels, and more instantly.
Explore how businesses across multiple industries—from retail to logistics—rely on these efficient, cost-effective devices and learn more about how thermal printers work in this blog.
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What Is a Thermal Printer?
A thermal printer uses a heated printhead to produce images or text on paper.
It operates by selectively heating thermal paper or an ink ribbon in specific areas. The process involves a thermal print head that applies heat and pressure to the paper, causing the coated sections to darken and create the desired output.
Thermal printers are favored for their simplicity, speed, and reliability.
They’re used extensively in industries like retail, healthcare, logistics, and manufacturing for their cost-effectiveness and ability to generate high-resolution prints very quickly.
How Does a Thermal Printer Work?
The first thing to understand about how thermal printers work is that there are two types of thermal printers:
- Direct Thermal Printers—This type of thermal printer does not use ink, toner, or ribbons. Instead, the printhead applies pressure heat onto the surface of thermal paper. The paper’s reaction to the heat and pressure is to turn black to produce the desired image or text.
- Thermal Transfer Printers—This type of thermal printer uses a wax-coated ink ribbon to press onto the surface of the paper, the wax then melts and exposes the ink which takes hold and dries. This type of thermal printer allows for higher quality (and longer lasting) print jobs but requires a ribbon that must be replaced.
Is a Thermal Printer Inkless?
If using direct thermal printing, then yes! Direct thermal printers rely on thermal paper to create images and text. The paper turns black when heat and pressure are applied.
What are Thermal Printers Used for in Business?
Direct thermal printing is commonly used for receipts, labels, and tickets. Odds are, if you’ve ever shopped at a retail store, your receipt was printed using a direct thermal printer because they can print fast and require very little upkeep aside from replacing the paper roll. This way, operations go uninterrupted throughout the day.
Thermal transfer printing is used when more durable prints are needed, making this form of thermal printing suitable for labels, barcodes, and packaging.
Should Your Business Invest in a Thermal Printer?
Whether or not your business should invest in a thermal printer over other types of printers depends almost entirely on your use case. Industries like retail and logistics need labels printed instantly and have very little room for downtime. In the case of printing receipts or labels, you need them when you need them.
