Kamaste, I am very sorry for all the trouble you have been facing with your DH87RL Motherboard and the printer.
We can perform some troubleshooting steps in order to find out what is causing this behavior:
• Test another device using the same USB port just to find out if you are getting the same behavior.
• Make sure you download the correct drivers for your printers, since it looks to be compatible to work on Windows 8 and Windows 7, this behavior looks like is related to lack of drivers.
• Test the system out of the chassis.
Unfortunately I have no other printer device available for testing,
so I connected some external HDDs without problems at the same USB Port.
The only thing I observed was, printer and "old" HDD connect to port#0004/hub#0001,
whereas "new" HDD connects to port#0019/hub#0001 (at the same physical USB connector)
but I suppose this is because of USB 2.0 (printer and old HDD) and 3.0 (new HDD)
Printer is windows 7 compatible:
Driver is also windows 7 compatible:
and I downloaded the correct drivers:
Out of the chassis? No I did not!
OK here's some more interesting news, I found out right now:
As I said, when I once install the printer, everthing works fine as long as I do not power off the computer.
When I reboot the system an unknown device is installed instead of the USB printing support and the printer won't work any more.
BUT...when I unplug the USB cable from the printer during boot time until windows has started and then I connect the USB cable again, the USB printing support remains active and the printer works !!!
Of course this can only be "some sort of solution" but it's very impracticable and can not be a final solution!
Elsewhere I read about some USB issues with the H87 chipsets (C1 stepping), maybe this is some similar issue here?