Tape drive rejects cleaning tape

[hcl]

I've got a HP DAT72 USB tape drive & the clean light is on, but when I insert the cleaning tape (HP DDS C5709A) it spits it right out again instead of cleaning the drive.

After spending an hour on hold with HP, they told me I had the wrong number & the number they gave me went to pavilion desktop support

[SolMiester]

Hi, have you used that tape before, or is it used?.......check for firmware upgardes......you have rebooted the system?