We have had this printer for some time. Occasionally ( actually more often than occasionally) it will forget that it can do two sided. The printer selection will come up but will not show an option for two sided printing. We have a wireless netwoek with a desktop (win 7 pro) and laptop (win 8.1). What we usually do is delete then reinstall the driver. This should not be necessary. The only thing I can thin is that when we travel we will shut down power to everything, internet, printer, TV etc. Is this what is affecting the mmixup?
Thanks