HP Color LaserJet CM6030CM6040 Multifunction Printer series - Manual (Page 217)

To recycle the used image drum, follow the instructions included with the new image drum.
Install memory
You can install more memory for the product.
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 and then touch bare metal
on the product.
Install DDR memory DIMMs
1. Turn the product off.
2. Disconnect all power and interface cables.
ENWW Replace supplies 201