If you open the solution center and go to settings there are no choices for “Scan Settings and Preferences” everything else has another drop down menu for option. I can access the scanner through Irfanview>Select Twain Source device there are two choices: HP Officejet 5600 series TWAIN 1.0 (32-32) and WIA-HP Officejet 5600 series TWAIN 1.0 (32-32). If I use the first one I get and error message “Unable to communicate with HP software. Please verify that it has been installed and is working properly.” and “TWAIN error! Can’t connect to device or the TWAIN deriver not installed!” The second works fine.
I’m connected to the printer using USB and can print with no problem. I’m running XP SP3 and HP software version is 50.0.152.000. I tried HP and didn’t even get a response. This worked fine at one time.
Marc