I have just come across this Thread: http://www.vcfed.org/forum/showthrea...-Formatter-HDD

Has anyone successfully replaced the HDD in a HP DesignJet T770 or T1200 with a new one that was NOT supplied by HP?

I have a T770 that does not boot up correctly and I have a strong feeling that the HDD may be dead. There is not too much to be found on this topic on the internet, but a lot of people say that the printer will only accept a new HDD if there is some HP firmware preinstalled. I tried to hook up the HDD to a computer to check it for errors and possibly make a disk image, but sadly the disk is password-protected. It is a 320GB SATA disk made by HGST.

Thank you for any help on this!