PAPER FEED Q5690A 2.4 Replacing the double feed prevention roller A. Periodically replaced parts/cycle • Double feed prevention roller: Every 600,000 copies (Every 500,000 copies in actual replace- ment count) B. Procedure Note: • Be sure to lower the up/down plate to its lower most position in advance by pressing the tray down switch (SW100) with electricity sup- plied. 1. Remove the HCI from the engine. 2. Open the top cover [1]. [1] III DIS./ASSEMBLY 3. Remove 2 screws [2] and then remove the pro- tective cover [3]. [2] [3] 4. Remove 2 screws [1] and then remove the dou- ble feed prevention unit [2]. [1] [2] 3-8