Why can't all the HP document scanners work this well. The 8000 and 5000 series of scanner HP makes are horrible at document feeding. The motor in the ADF on the 8000's tends to go out and the PSU also tends to burn out.
It works and it works VERY well; It doesn't jamb for one; If you do things like scan documents that have say a check taped to the paper you have to make sure to uncheck Multiipic; It will otherwise detect the difference in friction and interpret that as a jamb as all other HP document feeders will.
None; GO AND BUY THIS ONE NOW!!