Step 5 Unplug the one-pin, three-pin, and four-pin cassette docking plug wire harnesses (callout 1) at the docking plug. Step 6 Unplug three-pin optic sensor connector (callout 2) at the PCB. Step 7 Unlace the harnesses from loops as required. Step 8 Remove the three drive assembly mounting screws (callout 3). Step 9 Depress the metal retaining latch (located on the tray side of the assembly). Step 10 Lift out the drive assembly. 21 3 2 2 Figure 153. Remove tray 3 (500 sheet-feeder) drive assembly 174 Chapter 6 Removal and replacement C7058-90936