I also has this bug. My HP 1022 Laserjet support manual duplex mode, It's nice work in 10.04, but in 10.10 this options is disabled in Printing Dialogs.
I also has this bug. My HP 1022 Laserjet support manual duplex mode, It's nice work in 10.04, but in 10.10 this options is disabled in Printing Dialogs.