Oki c3530 User Manual page 127

7.
8.
Memory card.jpg
9.
Memory cover open.jpg
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Carefully remove the new memory board from its
wrapping. Try to handle the board only by its short edges,
avoiding contact with any metal parts as far as possible.
In particular, avoid touching the edge connector.
Note that the memory board has a small cutout in the
edge connector, which is closer to one end than the other.
Identify the RAM expansion slot in the printer. Unclip the
plastic cover to open this slot.
C3530 MFP User's Guide
Installing additional memory > 127