Why can’t scan both sides of photo or document?

Due to Z300 being dedicated to photo scanning, we need to consider both how to protect your photos along with keeping the price to fit the market. If you want to scan a stack of photos and documents all at once, either the scanner's cost or the chance to damage your documents will be much higher than the Z300. We understand no one want to bear this risk especially on old photos. Therefore, the final design supports to scan one at a time for single side only.