# Rotation

The character string(s) you want to verify cannot rotate more than 10 degrees in either direction as compared to the corresponding string(s) in the training image. For example, the following figure shows a character string that exhibits a rotation from image to image that prevents it from being a candidate for Clean Print Mode:

This rotational limit applies to each character string as a whole as well as to individual characters within the same string, where no character can appear with an angle of rotation more than 10 degrees from any other character. This limit often prevents character strings printed along a curved surface from qualifying for Clean Print Mode, as shown in the following example: