Copier Lingo: Recirculating Automatic Document Feeder

Recirculating Automatic Document Feeder (RADF)
An automatic document feeder that can flip the original document over to copy its backside. If you only have an automatic document feeder (ADF), you can copy a two-sided document, but the copies will be on two different sheets of paper.

Copier Lingo: Automatic Document Feeder (ADF)

Automatic Document Feeder (ADF)
Allows you to copy documents without lifting the platen. Instead of placing each sheet individually on the glass, you simply load a stack of originals into the feeder, press start, and let the copier move each sheet on and off the platen. A feeder typically holds anywhere from one to 20 sheets at a time.

Feeders

Content Courtesy of Buyer Zone: Your Office Equipment Resource Center

An automatic document feeder (ADF) allows you to copy multi-page documents without having to lift and lower the cover for every sheet you copy. Instead, you drop a stack of originals (up to 50 pages) into the feeder, press start, and the ADF automatically pulls each page through.

If you copy lots of double sided originals, you should invest in a recirculating automatic document feeder (RADF), which can flip pages inside the machine for simplified double-sided copying.