ZQ600 Series mobile printers from Zebra are made for use in retail: They are inconspicuous yet diligent assistants that create receipts and labels wherever and whenever they are needed. They thus are particularly useful for creating shelf and return shipping labels, for marking price changes and for receipt printing at the mobile point of sale. Depending on the model, the maximum print width is 48 mm (ZQ610), 72 mm (ZQ620) or 104 mm (ZQ630), while their print speed and quality is the same: 115 mm/sec. at 203 dpi.