Vancouver document scanners are generally designed as feed or pull scanners and can comfortably handle document stacks of 40 or 1000 pages, depending on the design. Most models are capable of simultaneously scanning front and back with a single scan using two CCD sensor strips. Also, some paper scanners are designed as a combination of slide or flatbed scanners to scan bound documents without destroying them. Document scanners usually have an optical resolution of 200-400 ppi, although scan quality depends on the resolution selected or available, but 600-1400 ppi is now also possible. For scanning text documents or journal articles, resolutions of 150 to 300 dpi (200 to 300 dpi as a text recognition (OCR) basis are recommended. Higher resolutions document are very useful for scanning images. You can choose high resolutions document scanners according to your needs or workplace.