Patent ID: 8625151
Filing Date: 2014-01-07
Classification: B41J

Abstract:
1. An apparatus comprising: a conveyance mechanism including a conveyance belt on which detection patterns containing a plurality of isolated patterns are intentionally marked, configured to convey a medium in a predetermined direction; a sensor configured to capture an image of an area on the conveyance belt containing at least a part of the detection patterns to acquire first and second data; and a processing unit configured to extract a template pattern containing a part of the detection patterns from the first data, and seek an area having a correlation with the template pattern within a seek area of the second data to obtain a moving state of the conveyance belt, wherein each of the isolated patterns is given uniqueness with which each pattern is distinguishable from other patterns, by a combination of or at least any one of size, shape, contrast, density, color, and interval arrangement.