Office & Productivity · All-in-One Printers
Do I need an automatic document feeder (ADF) and duplex scanning?
Reviewer consensus
If you scan or copy more than a few pages at a time, yes. A 35- or 50-sheet ADF turns a 20-page tax document from a 20-minute job into a one-button task. Single-pass duplex scanning (where the unit scans both sides in one pass) is a real time-saver for double-sided originals; the HP Color LaserJet Pro 3301sdw and several OfficeJet Pro models offer it, while cheaper units force you to flip the stack manually.