It's a logo of four corners of a square with OCR written inside. The square just has blank space for the middle of each side so that only the corners are visible in the image.
This General OCR icon is made in Material Design style
developed by Google. This style is based on extremely simplified shapes, thin two-pixel lines, and is optimized for 24x24 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 6,200 icons, all in the same style and quality.