Action recommended 
Additional 
information 
If problems persist, run the Device Analysis Test in HP 
Library and Tape Tools (L&TT). Follow any 
troubleshooting given with the test results.  
Ensure the latest firmware is loaded. 
NOTE:  
Due to issues in development Library and Tape 
Tools cannot be reliably used to diagnose 
potential issues with the DAT 40 Hotplug drive 
(Q1546A only). This problem is currently being 
investigated and will be corrected in the next 
revision of Library and Tape tools. This note will 
be updated once the problem has been corrected 
but until then do not use Library and Tape Tools 
to diagnose issues with this product. This problem 
only relates to the Q1546A product, no other DAT 
40 variants are affected 
Click here for 
information on HP 
Library and Tape 
Tools. 
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If DAT8/24/40, check if the cleaning tape is ejected quickly after loading and the 
green Tape LED is FLASHING
 
Action recommended 
Additional 
information 
Check that the cleaning cartridge has been used less 
that 50 times. 
Click here for 
information DDS 
media care. 
Click here for 
information on the 
HP DAT front panel 
LEDs. 
Try a new cleaning cartridge. 
Click here for 
information on 
ensuring a long life 
for the HP DAT 
product. 
Run the Device Analysis Test in HP Library and Tape 
Tools (L&TT). Follow any troubleshooting given with the 
test results. 
Ensure the latest firmware is loaded. 
Click here for 
information on HP 
Library and Tape 
Tools.