M9059 and E60065dn share specifications such as Print Technology (Laser), Automatic Duplex Printing (Yes), USB (Yes), Ethernet (Yes).
The main differences: Printer Functions (M9059: Print, Scan, Copy, E60065dn: Print); Black Print Speed A4 (M9059: 50 ppm, E60065dn: 61 ppm); Print Resolution (M9059: 600 x 600; HP FastRes 1200 dpi, E60065dn: 1200 x 1200 dpi).
M9059 may suit users who need its differing values, while E60065dn benefits those who need its paired strengths. Review the specs table above before deciding.