I have a officejet 5610. The one HP Fax HPLIP I assume is for faxing. What is the difference between the other two drivers? Which one would be better for printing #10 eveloplopes? HP Officejet 5600 series USB #1 HP Officejet 5600 series USB CN5BSDE0FT04CY HPLIP HP Officejet 5600 series HP Fax HPLIP Dennis