I have several M3035 MFPs and a couple of M4345 MFPs. Last week I upgraded the server to 2008 R2 x64 and all of them started giving error code : 110/6005 (0x1775) when doing a scan to folder. I can scan to a server across town that is a 2003 and another that is a 2008. It seems to give this error more often the larger the scan is. I upgraded the firmware on one of the scanners from 20081208 48.081.2 to 20101206 48.171.5 but still get the same error.
I had the exact same problem after HP replaced the hard drive and formatter because the printer would hang during booting. After replacing those parts I got this error a lot scannign to a network folder. Called HP, they said update the firmware, that even though the configuration page says it is up to date, it needs to be updated again because of the new drive. There is a more up to date version now on HP's site that is supposed to fix this better.