Time Machine Error

[police340]

Hello, I have airport 3TB hand I get this error. Sometimes it works and sometimes it doesn't. I have no idea what it means and can't seem to get an answer.
The backup disk image “/Volumes/Drive Name/My Name iMac Printer.sparsebundle” could not be accessed (error -1).

Thanks Bill

 

[ArchiMark]

Here's some info on sparse bundle problems....

http://reviews.cnet.com/8301-13727_7-10329835-263.html