Printing assembly calibration

摘要

A printing assembly includes a transport system configured to transport items on a transport path and a printer rotatably disposed on a support. The printer includes a plurality of printing elements disposed sequentially along the transport path. A method of calibrating the printing assembly includes aligning a first reference associated with the printer with a second reference associated with the support, transporting an item on the transport path, printing a pattern on the item using a first printing element and a second printing element, determining a correction value from the pattern, and rotating the printer relative to the support in an amount corresponding to the correction value to substantially align the printing elements with the transport path.