Installing Options 189
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4. Insert the DIMM into either slot until the two clips lock onto 
the DIMM. Make sure that the S0 slot has a module at all 
times.
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Caution:
❏ Do not force the DIMM into the slot.
❏ Be sure to insert the DIMM facing the correct way.
❏ You should not remove any modules from the circuit 
board. Otherwise, the printer will not work.
5. Return the printer to its original state as shown below.