Hi,
Yes, bit version of a driver plays an important role you need to install the drivers matching with the bit version of your computer. I suggest you to download the drivers given in the link below. Download the correct version of Driver depending on the bit version of your computer.
Microsoft Windows 8.1 (32-bit) downloads
Or
Microsoft Windows 8.1 (64-bit) downloads
If you are still unable to use the printer then I would suggest you to follow the steps given in the link below and try to install the driver in compatibility mode and check.
Write to us with the status.