Both printers aer connected througha Windows SBS 2011 Standard server and pass through a gigabit network and the signal is pushed through a shared gigabit network switch.
After doing some time tests between a CP1520n and a CP1520nw printer I have discovered that the CP1520nw often takes twice the time to print and a word document.
A word document takes 37.98 seconds on the CP1520n and 69 seconds on the CP1520nw.
I have tested by removing the Gigabit switch and the results are 41 seconds for the CP1520n and still 69 seconds for the CP1520nw.
I have reinstalled the drivers and run the firmwareupdate software for the CP1520nw and also run the HP ScanPrint Doctor which revealed no problems. Please advise?