HP Color LaserJet CM4730 Multifunction Printer series - Manual (Page 77)

If installation fails, reinstall the software. If this fails, check the installation notes and readme files
on the MFP CD or the flyer that came in the MFP box, or go to
http://www.hp.com/support/
ljcm4730mfp .
ENWW Install the printing-system software 61