1x500 and 3x500 paper feeder and stand The 1x500-sheet paper feeder is optionally installed at the bottom of the product or 500-sheet paper feeder. The 3x500-sheet paper feeder is optionally installed at bottom of the product only. Each of the paper feeders pick up the paper and feed it to the product. The paper feeder controller controls the operational sequence of the paper feeder. Figure 1-46 Paper deck paper path Cassette 1 Cassette 2 Cassette 3 PD cassette pickup roller PD cassette separation roller 3x500-sheet paper deck PD cassette feed roller 58 Chapter 1 Theory of operation ENWW