Apple LaserWriter 12/640 PS - Manual (Page 122)

1 Insert the SIMM into the connector and press the SIMM down at an angle until the
retaining clips on each end of the connector snap and fasten the SIMM in place.
Hold the SIMM vertically over the slot, aligning the connectors and notches
with the circuit board’s connector. Notice that one edge of the SIMM has a
distinctive notch that you can use to judge the orientation and alignment of
the SIMM with the connector. This notch, on the bottom edge of the SIMM,
should be down as you install the SIMM.
To remove a SIMM, carefully spread the retaining clips at both ends of the
installed SIMM, then rotate the SIMM forward until it can be pulled free of
the slot.
WARNING When installing a SIMM, avoid touching the printer’s circuit
board with hands or tools to avoid damaging or scratching the printed
circuits.
Insert the card
straight in. Gently angle
the card back.
Snap the card
into the retain-
ing clips.
Notch
122 Chapter 5