The resolution is expressed in DPI values. DPI stands for Dots Per Inch. It is the number of dots per inch. One inch is 2.54 centimeters. The more of these “dots” on a small area, the higher the resolution and the sharper the image.
For printing text and 1D barcodes, a resolution of 203 DPI is sufficient. If you want to print 2D barcodes (such as QR codes), logos, images or very fine text, we recommend a resolution of 305 DPI. Some printers are also available in 600 DPI resolution, for specific applications where sharpness must be very high.