Encoded RFID Labels - Laser printers work pretty much like photocopiers and can print high-quality text and images quickly. They work by projecting controlled streams of ions onto the surface of a print drum, resulting in a charged image. The charged image attracts toner particles, using pressure to transfer the image unto the paper. This is the type of printer often used for the printing of documents which contain barcodes because of its speed and high resolution image-printing.