HP Color LaserJet CM4730 Multifunction Printer series - Manual (Page 346)

Install memory and fonts
You can install more memory for the MFP, and you can also install a font card to allow the MFP to print
characters for languages such as Chinese or the Cyrillic alphabet.
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 MFP.
Install DDR memory DIMMs
1. Turn the MFP off.
2. Disconnect all power and interface cables.
330 Appendix E Install memory and print server cards ENWW