HP 5850 - Deskjet Color Inkjet Printer Reference Manual page 207

Table D-4 Solving Hard Drive Problems (continued)
Computer seems to be locked up.
Cause
Program in use has stopped responding to commands.
The removable hard drive has no power to the hard drive enclosure.
Cause
The lock on the enclosure is not turned to the "ON" position.
Power cable from the computer power supply to the enclosure
frame is not properly connected.
The removable hard drive is not recognized by the computer.
Cause
The removable hard drive carrier is not fully seated in the
enclosure frame or the hard drive is not fully seated in the
carrier.
The removable hard drive enclosure is beeping and the green LED is flashing.
Cause
Fan failure alarm on the removable hard drive enclosure has
been activated.
Solution
Attempt the normal Windows "Shut Down" procedure. If this
fails, press the power button for four or more seconds to turn
off the power. To restart the computer, press the power button
again.
Solution
Insert the key and turn the lock clockwise 90 degrees. The
green LED on the front of the enclosure should be on.
Check the power supply to make sure it is properly connected
to the rear of the enclosure frame.
Solution
Push the carrier into the enclosure frame so that the connector
on the rear of the frame is properly seated. If this does not solve
the problem, turn off the computer, remove the carrier, and
check to see if the connector on the hard drive is properly
seated in the carrier.
Solution
Shut down the computer and contact HP for a replacement
enclosure.
Solving Hard Drive Problems 195