Comparing the depth of field of two types of flatbed scanner, a CIS and a CCD model.
Compare CCD vs CIS Scanning Technologies
How Did Scanners Work Before Digital Cameras and Contact Image Sensors? - Digital Check Corp.
Flatbed Scanner Ccd Array Photograph by Sheila Terry/science Photo Library - Fine Art America
Amazon.com: Plustek OpticPro A320E - A3 CCD Sensor Flatbed Scanner, 12" x 17" scan Area with 7.8 Second Speed. Windows,Mac, ICA & Twain Compliant. : Office Products
Epson Perfection V850 Pro 4800 x 6400 DPI Flatbed scanner Black A4 Flatbed, Color, CCD, 4800x6400 dpi, Hardware Resolution 4800 x 9600 dpi + 6400 x 9600 dpi with Micro Step Drive technology, 8.5x11.7", USB 2.0, Black
Plustek OpticPro A320E , CCD Sensor Flatbed Scanner , Fof Mac and Windows 783064089388 | eBay