Erase hard drive hp1055
In service test menu scroll to "3.Hard disc drive", & press enter, if test drive passed don't replace the hard disc or modification or changes. If test failed then check as shown below:
1 Switch the printer OFF. Remove the EIO Card (if installed) and re-install the Hard Disk Drive making sure it installed correctly by pushing it firmly inwards and checking that the two installation screws are completely tightened. Switch the printer ON again and repeat the Hard Disk Drive Test. If the Hard Disk Drive Test fails again then replace the Hard Disk Drive.
2 If the Hard Disk Drive Test passed after removing the EIO Card,then switch the Printer OFF and reinstall the EIO Card, making sure that the two installation screws are completely tightened.
Switch the Printer ON again and repeat the Hard Disk Drive Test. If the Hard Disk Drive Test fails, then the EIO Card could be faulty.Replace the EIO Card.
3 If the Hard Disk Drive Test continues to fail after replacing the EIO card or the Hard Disk Drive, then replace the Electronics Module..
I am having little knowledge, if I am wrong Pl don't comment, pl forgive me.
on May 25, 2013