Patent ID: 8666188
Filing Date: 2014-03-04
Classification: B41J

Abstract:
1. A computer-implemented method for identifying edges of web media transported on a movable transport surface, wherein the method is implemented in a computer system comprising one or more processors configured to execute one or more computer program modules, the method comprising: sensing, using a linear array sensor positioned along a process path of a web, the web media and the movable transport surface to obtain image data representative of variations in optical textural properties of the web media and variations in optical textural properties of the movable transport surface, wherein the variations in the optical textural properties of the movable transport surface are different from the variations in the optical textural properties of the web media; and processing the image data to determine differences between the variations in the optical textural properties of the web media and the variations in the optical textural properties of the movable transport surface to identify an edge of the web media, wherein the linear array sensor is a full-width linear array sensor that is configured to sense the web media and the movable transport surface on which the web media is transported to obtain the image data.