Plustek Opticpro A320 Plustek OpticPro A320 is a large format scanner that can scan a 12 x 17 page at resolutions up to 1600 dpi. Easy to operate with push button scanning. Ideal for prepress, graphic designers, photo organizers, scrapbooking, libraries, schools, small office/home office (SOHO) users and anyone that needs to scan A3 sized graphics and documents.