Possibly, as in it is 100% possible to work, but not guaranteed it will, if that makes sense.
Different revisions of machine, added options, NVRAM settings all need to match, else you would have to reload the OS on the HDD while in the printer, which is not documented and may require special software.
I have a 7760dn and my HD failed. I have access to purchase a drive unit from a 7750. Would the drive and the installed software/firmware be compatible to boot and run my unit?
Thanks