HP LaserJet 9000 Printer series - Manual (Page 221)

C Product memory and expansion 221
Installing memory
CAUTION
Static electricity can damage DIMMs. When handling DIMMs, either wear an
antistatic wrist strap or frequently touch the surface of the DIMM antistatic package,
then touch bare metal on the product.
To install DIMMs
1 If you have not already done so, print the configuration to find out how much
memory is installed in the product before adding more memory.
2 Turn the product off. Disconnect the power cord and any cables.
3 Loosen the two captive thumb screws on the back of the product.
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