TA Triumph-Adler P-C3570DN - Manual (Page 240)

A-7
Installing the Memory Modules
IMPORTANT Remove any USB memory that is attached to the
printer's USB memory slot.
1
Power off the printer and unplug the printer power cord.
2
Unscrew two screws at the back of the main controller board.
3
Pull out the main controller board gently.
4
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.
5
Push down the memory module to secure.
6
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.
CAUTION Do not plug the memory module backwards.
Main Controller Board