HP Color LaserJet 4730 Multifunction Printer series - Manual (Page 349)

11. Reinsert the formatter pressure release tabs by squeezing them together and pushing them into
place.
12. Reconnect the power cable and interface cables, and turn the MFP on.
13. If you installed a memory DIMM, go to Enabling memory .
To install a flash memory card
ENWW Installing memory and fonts 329