3 Post insertion disassembly/assembly External section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Removing/reinstalling the external covers . . . . . . . . . . . . . . . . . . . . . . . 18 Paper feed unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Replacing the paper pick roller and pick roller . . . . . . . . . . . . . . . . . . . . 19 Replacing the double feed prevent roller and torque limiter. . . . . . . . . . 20 Post insertion disassembly/assembly ENWW 17