SC-B9580 User's Guide Basic Operations Printable Area Left and Right Edge Positions of Media The left and right edges of media recognized by the printer varies as shown below according to the Width Detection settings. Width Detection On : The printer automatically detects the left and right edges of the loaded media. When media edge plates are attached, the edge of the media is recognized as within 5 mm (0.19 in.) of the left and right edges of the media. The edges of the media are not detected correctly if the media edge plates are not attached correctly. U “Loading Media” on page 38 52