HP Color LaserJet CM4730 Multifunction Printer series - Manual (Page 351)

CAUTION Do not insert a flash memory card that is designed for use with a digital camera into
the MFP. The MFP does not support photo printing directly from a flash memory card. If you
install a camera-type flash memory card, the control panel displays a message asking if you want
to reformat the flash memory card. If you choose to reformat the card, all data on the card will be
lost.
1. Turn the MFP off.
2. Disconnect all power and interface cables.
ENWW Install memory and fonts 335