Template 4—Big text field and Code 128 Example label Label Editor parameters and preview Overview Template 4 provides the best machine readability and human readability in a single label for those with smaller amounts of data (10 numerals or 6 alpha characters, maximum). Specs Maximum data: 10 numerals or 6 alpha characters (The maximum alphanumeric length depends on the character mix.) Design features • Code 128 is very common and offers good data density for this size label. • Narrow bar width gives good readability and accommodates a good amount of data. • The blank margin to the right of the barcode will fluctuate in size with the amount of data encoded. The example shows the maximum length barcode while still maintaining a 3.81-mm (0.15-in) right margin. • The barcode extends from top to bottom to maximize vertical redundancy, which facilitates machine readability. • Minimal space separates the barcode and the text. • The blank margin separating the text field and the barcode is 0.64‑mm (0.025-in) wider than the minimum quiet zone required for machine readability. • The Droid Mono Bold font offers consistent character spacing, discernible characters, and a modern look. • The text height is maximized within the height of the label. • A blank margin above the text allows for 0.76‑mm (0.030‑in) vertical print drift. • A blank margin below the text allows room for lowercase descenders, such as g and q, while also providing allowance for vertical print drift. • The left margin allows for horizontal print drift. • The horizontal scaling of the text field squeezes enough characters onto the label to match the maximum data encoded in the barcode.
