Intermec PX6i Intermec Direct Protocol 8.60 Programmer's Reference Manual - Page 27

Chapter 3-Label Design 3.2. General Formatting Instructions Origin The positioning of all printable objects on the label, that is, text fields, bar code fields, images, boxes, and lines, uses a common system. The starting point is called "origin" and is the point on the media that corresponds to the innermost active dot on the printhead at the moment when the printing is started. The location of the origin is affected by the following factors: • Position across the media path (X-axis): The position of the origin is determined by the X-Start value in the setup. • Position along the media path (Y-axis): The position of the origin is determined by the Feed adjustment in the setup (and any FORMFEED instruction executed before the current PRINTFEED instruction or after the preceding PRINTFEED). Coordinates Starting from origin, there is a coordinate system where the X-axis runs across the media path from left to right (as seen when facing the printer) and the Y-axis runs along the media path from the printhead and back towards the media supply. Units of Measure The unit of measure is generally "dots", which means that all measurements depend on the density of the printhead, see the Info box to the left. The only exception is outline font heights, which are specified in points. A dot has the same size along both the X-axis and the Y-axis. Printhead density 8 dots/mm = 203.2 dots per inch: Dot size: 0.125 mm = 4.92 mils Printhead density 11.81 dots/mm = 300 dots per inch: Dot size: 0.085 mm = 3.33 mils Intermec Direct Protocol v.8.60-Programmer's Reference Manual 19