Most people expect a printer to need ink. A direct thermal label printer does not, and that is the main reason small shops and online sellers like it.
The print head is a row of heaters
Inside the printer is a print head with a line of tiny heating dots. Thermal paper has a coating that turns dark when it gets hot. As the roll moves past the head, the printer heats exactly the dots needed to draw text, a logo or a barcode.
No cartridge, no toner and no ribbon. The only thing you ever reorder is paper.
What DPI means here
DPI is how many of those heating dots fit in one inch. A head around 300 DPI is sharp enough for small fonts and for barcodes that scan first time. Lower resolutions can blur thin barcode bars.
Direct thermal vs thermal transfer
- Direct thermal: no ribbon, cheapest to run, labels can fade over many months in sun or heat. Ideal for price tags, shelf labels and short-life product stickers.
- Thermal transfer: uses a wax or resin ribbon, labels last for years. Better for asset tags and outdoor use.
For a kirana store, boutique or home brand, direct thermal is usually the right call.
Roll width matters
Pocket printers usually take 58 mm rolls. They are great for stickers and small product labels, but they are not 4x6 inch courier label printers, so check what you need to print before you buy.
We supply a pocket Bluetooth model for 58 mm rolls with 304 DPI print. Specs and price are here: thermal label printer by PackForge
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