Systems and methods for automatic print alignment

摘要

The present application is directed to systems and methods for print alignment by a continuous feed printer. A sensor of a printer detects a first line of a pattern on a non-printing side of a printing medium, the pattern comprising two non-parallel lines separated by a predetermined distance at a predetermined position of the printing medium. The printer advances the printing medium a first distance, and the sensor detects a second line of the pattern. The printer identifies a horizontal offset of the printing medium from an expected location of the predetermined position proportional to the difference between the first distance and the predetermined distance.

主权项

1. A method for print alignment by a continuous feed printer, comprising:
detecting, by a sensor of a printer, a first line of a pattern on a non-printing side of a printing medium, the pattern comprising two non-parallel lines separated by a predetermined distance at a predetermined position of the printing medium; advancing, by the printer, the printing medium a first distance; detecting, by the sensor, a second line of the pattern; advancing, by the printer, the printing medium a second distance; detecting, by the sensor, a third line of the pattern; identifying a difference between the first distance and the second distance; and identifying, by the printer, a horizontal offset of the printing medium from an expected location of the predetermined position proportional to the difference between the first distance and the predetermined distance, and proportional to the difference between the first distance and the second distance.