OKIFAX 5700/5900 4 - 74.3.3 Main Cover1. After removing the document cover, rearcover, and NCU cover, open the scannerunit and stacker cover.Caution: Secure the scanner unit byengaging its hooks with thestacker cover.2. Unscrew two screws.3. Open the manual feed guide.Scanner unitStacker coverTwo screwsMain coverHooksManual feed guide