A label printer is a computer peripheral that prints on self-adhesive label material and sometimes card-stock. Label printers are different from ordinary printers because they need to have special feed mechanisms to handle rolled stock, or tear sheet (fanfold) stock. When printing on continuous label stock, there is a tendency for the print location to shift slightly from label to label. To ensure registration of the print area with the target media, label printers use a sensor that detects a gap, notch, line or perforation sport ween labels. This allows the printer to adjust the intake of label stock so that the print aligns correctly with the media.
Label printers have a wide variety of applications, including supply chain management, retail price marking, shipping labels, what is and laboratory specimen marking, and fixed assets management. Label Printers use a wide range of label materials, including paper and synthetic polymer materials. There are four types of label printers that are available, each doing a different job.
Desktop label printers are designed for light to medium duty use with a roll of stock up to 4". They are quiet and inexpensive. Commercial label printers can typically hold a larger roll of stock (up to 8") and are geared for medium volume printing. Industrial label printers are designed for heavy duty, continuous operation in warehouses, distribution centers and factories. RFID encoders are specialized label printers that print and encode at the same time on RFID tags enclosed in paper or printable synthetic materials. RFID tags need to have printed information for backwards compatibility with barcode systems, and so humans can identify the tag.