热敏印刷是一种数码印刷工艺，当纸张经过热敏打印头时，热敏打印头会加热带有涂层的感热纸，但不是加热感热纸上所有区域，加热区域与所要打印出来的文字和图像一致。涂层在被加热后会变成黑色，而这些黑色形状就是所要打印出的文字和图像[1]。热敏印刷可以完全不需要墨粉。
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