Epson EPL-N2550 Series User Manual page 205

5. Insert the memory module into slot until the clip lock onto the
memory module. Make sure that the left slot (white) has a
module at all times.
Caution:
c
❏ Do not force the memory module into the slot.
❏ Be sure to insert the memory module facing the correct
way.
❏ You should not remove any modules from the circuit
board. Otherwise, the printer will not work.
Installing Options
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