I am using Ubuntu 10.10 and I have gnome-manual-duplex v0.34 installed. However, I can't find the virtual printer as shown on your screenshots. Have this feature being removed?
2) Add to Panel -> Gnome Manual Duplex applet -> Add
…Do it at least once, then…
Print -> GnomeManualDuplex (Virtual Printer) -> Print
I can't find the GnomeManualDuplex (Virtual Printer),either. my os is opensuse11.4 and I have gnome-manual-duplex 0.46 installled. i have tried the operations in #2,but not working. my printer is HP Laserjet 1022 connected to a server in local lan network. is GnomeManualDuplex (Virtual Printer) only functional for local printers?
No. GnomeManualDuplex is functional for all printers.