Contex SD4490 44" Wide/Large Format Color Scanner Contex SD 4490 wide format scanners deliver clean, sharp image quality for technical documents, sketches and maps, providing an easy and affordable way to save time on in-house scanning. Throughout the lifecycle of your SD wide format scanner, you’ll benefit from tried and tested Contex quality. From long-lasting, cost-saving LED illumination to affordable, easy to service spare parts, your scanner will prove to be an even wiser investment when you look at the ROI it provides over its long service life.