Stabilized polyurethane resins and methods for their preparation are disclosed. First, it is determined whether a neighboring pixel in a previous field corresponding to the target pixel in the current field is the moving pixel. An upper conductive plate and a lower conductive plate separated by a first layer of dielectric material are formed over the well region. In some embodiments, at least one of the contacts may be suspended relative to a spring such that the engaging contacts do not rotate relative to each other during arm rotation of the robot. A rendered second glyph matching the first glyph is found in a cache of rendered glyphs.