Kyocera FS-4200DN FS-2100DN/4100DN/4200DN/4300DN Operation Guide - Page 281

Appendix 3 Unscrew five screws at the back of the main controller board. 4 Pull out the main controller board gently. Main Controller Board 5 Remove the memory module from its package. Aligning the cutouts of the memory module with the matching keys of the socket, carefully plug the memory module into the memory socket until it clicks in place. CAUTION Do not plug the memory module backwards. 6 Push down the memory module to secure. 7 After you finish installing the memory modules, reinstall the main controller board and fasten it with screws. Removing a Memory Module To remove a memory module, remove the main controller board, then carefully push out the two socket clamps. Ease the memory module out of the socket to remove. A-7