Dymo printers do not use traditional ink or toner like many other printer types. Instead, they utilize thermal printing technology, which means they require specific types of thermal labels that are designed for their printers. In thermal printing, heat is applied to special heat-sensitive label material, which causes the label to change color and form the desired print. Therefore, it is important to ensure that the labels being used are compatible with the Dymo printer model in question. Dymo offers a variety of label types and sizes, and users should always refer to their printer's specifications to determine the correct labels to use. Information about compatible labels can typically be found on the Dymo website, allowing users to easily identify the right products for their labeling needs.